Ever been frustrated by lingering water droplets obscuring your underwater footage? Or perhaps you’ve worried about the corrosive effects of saltwater clinging to your precious camera housing? These are valid concerns for any underwater photographer or videographer. Indeed, achieving crystal-clear images depends not only on the quality of your equipment but also on its meticulous maintenance. Therefore, understanding how to efficiently shed water from your camera housing is paramount. This seemingly simple task can significantly impact the longevity of your equipment and, more importantly, the quality of your captured moments beneath the waves. Furthermore, quickly clearing water droplets allows you to seize fleeting opportunities and capture stunning images without the frustration of blurry or distorted visuals. In this article, we will delve into various techniques and tools to ensure water rolls effortlessly off your camera housing, leaving you free to focus on capturing the beauty of the underwater world.
Firstly, consider the inherent properties of your camera housing’s material. Smooth, non-porous surfaces naturally repel water more effectively. Consequently, housings made from materials like polycarbonate or anodized aluminum are advantageous in this regard. However, even with these materials, microscopic imperfections can trap water. Thus, regular cleaning is essential. Before each dive, meticulously wipe down the housing with a soft, lint-free cloth to remove any dust, dirt, or salt residue. Additionally, applying a specialized hydrophobic coating, specifically designed for underwater photography equipment, can significantly enhance water repellency. These coatings create a barrier that minimizes surface tension, causing water to bead up and roll off effortlessly. Moreover, they offer an added layer of protection against the corrosive effects of saltwater. Remember, a well-maintained housing is a crucial investment in the longevity of your equipment and the quality of your underwater endeavors.
Beyond the housing itself, external factors play a vital role in water management. For instance, the application of a rain-X type product, typically used for car windshields, can be surprisingly effective on camera housings. While primarily designed for above-water applications, these products can create a hydrophobic layer that encourages water to bead and roll away. Another practical tip involves the use of a small, soft-bristled brush or a dedicated lens cleaning tool to gently sweep away lingering water droplets between shots. This is especially important when shooting in turbulent conditions or when transitioning between different depths. Furthermore, carrying a small microfiber cloth specifically for drying the housing is invaluable. After each dive, thoroughly rinse the housing with fresh water and carefully dry it with the cloth, ensuring no water spots remain. Finally, proper storage is essential. Store your housing in a cool, dry place away from direct sunlight to prevent damage and maintain its hydrophobic properties. By implementing these strategies, you can ensure your camera housing remains in optimal condition, ready to capture stunning underwater images for years to come.
Assessing Your Camera Housing’s Water Repellency Needs
Before diving into solutions, it’s crucial to understand just how much water repellency your camera housing actually needs. This isn’t a one-size-fits-all situation. The level of protection required depends heavily on the environment you’re shooting in and the type of photography you’re doing. Are you a casual vacationer snapping pics by the pool? Or are you a professional underwater photographer braving the depths of the ocean? Perhaps you’re a nature photographer dealing with rain and morning dew? Each scenario demands a different approach.
For the occasional splash or light rain, a basic level of water resistance might suffice. This could involve using a simple rain sleeve or ensuring your housing has a good initial factory sealing. Think of it like an umbrella – perfect for a drizzle, but not a downpour. However, if you’re regularly exposed to heavier rain, waterfalls, or snow, you’ll need something more robust. This is where dedicated waterproof housings or specialized coatings become essential. They’re designed to withstand sustained exposure to moisture, acting more like a sturdy raincoat than a flimsy umbrella.
For underwater photography, the requirements are even more stringent. You’ll need a fully submersible housing rated for a specific depth. These housings are typically made of durable materials like polycarbonate or aluminum and feature O-rings and seals to create a watertight environment for your camera. The depth rating is crucial here; a housing designed for snorkeling won’t cut it for deep-sea diving. Choosing the right depth rating ensures your camera stays dry and functional, no matter how deep you venture.
Beyond the environment, your shooting style also influences your needs. If you’re frequently changing lenses or adjusting settings in wet conditions, you’ll appreciate a housing with easy access and controls. Some housings even feature vacuum systems that allow you to test for leaks before you submerge your precious gear. For long exposures in humid environments, condensation can become a problem, so considering anti-fog inserts might be wise. By carefully considering your specific environment and shooting style, you can choose the water repellency solution that best protects your camera investment.
Here’s a quick guide to help you visualize the different levels of protection:
| Level of Protection | Environment | Example Solution |
|---|---|---|
| Basic | Light rain, splashes | Rain sleeve, factory sealing |
| Intermediate | Moderate rain, waterfalls | Waterproof housing, hydrophobic coatings |
| Advanced | Submersion, deep-sea diving | Underwater housing with depth rating |
Consider these factors when evaluating your camera housing’s water repellency needs:
- Frequency of exposure to water: How often will your camera be exposed to moisture?
- Intensity of exposure: Will it be light splashes, heavy rain, or full submersion?
- Environmental conditions: Will you be shooting in saltwater, freshwater, or snow?
- Shooting style: Do you frequently change lenses or adjust settings in wet conditions?
- Budget: How much are you willing to invest in water protection?
Choosing the Right Water Repellent Product
Getting water to bead and roll off your camera housing is crucial for clear underwater photography and videography. A good water repellent helps prevent water spots from obstructing your shots and also makes it easier to clean your housing after a dive. But with so many products on the market, picking the right one can be a bit overwhelming. This section breaks down the key considerations to help you make an informed decision.
Types of Water Repellents
Broadly speaking, water repellents fall into a few main categories:
Sprays
Sprays are probably the most common and convenient type. They offer a quick and easy application, perfect for touch-ups in the field. Look for sprays specifically designed for camera housings or underwater equipment, as they tend to be more durable and effective in challenging conditions. Some sprays are more viscous, offering longer-lasting protection, while others are lighter and better for quick applications between dives.
Wipes
Wipes pre-saturated with water repellent offer a convenient and mess-free alternative to sprays. They’re portable and ideal for travel or quick cleanings on the go. Wipes can be particularly useful for cleaning the port of your housing, which is especially prone to water spots.
Rain-X and Similar Automotive Products
While primarily designed for car windshields, products like Rain-X can also be used on camera housings with some success. They’re readily available and generally affordable. However, it’s important to note that they aren’t specifically formulated for underwater use and may not offer the same level of performance or durability as dedicated dive housing water repellents. Carefully test these products on a small, inconspicuous area of your housing before applying them to the entire surface, to check for any adverse reactions.
Creams and Pastes
These provide a thicker, more robust coating compared to sprays or wipes. Creams and pastes are often preferred by professional underwater photographers and videographers due to their longer-lasting protection. They require a bit more effort to apply evenly, but the added durability can be worth it, especially for extended dives or challenging conditions.
Things to Consider When Choosing
Choosing the right water repellent depends on several factors. Consider your budget, how often you dive, and the conditions you typically dive in. A quick-drying spray might be sufficient for occasional recreational diving in calm waters, whereas a more robust cream might be better suited for frequent dives in rougher conditions.
Compatibility with your housing material
Before applying *any* water repellent, ensure it’s compatible with the material of your camera housing. Some repellents might react negatively with certain plastics or coatings. Always check the manufacturer’s instructions for both your housing and the repellent to avoid any damage.
Application method
Consider how easy the product is to apply. Sprays are quick but can be messy, while wipes are convenient but might not offer the same level of coverage. Creams require more effort but usually last longer.
Longevity and Durability
How long the repellent lasts is a crucial factor. Some products will last for several dives, while others need reapplying more frequently. If you’re planning long dives or multiple dives in a day, choose a product with proven durability.
Environmental Considerations
Be mindful of the environment when choosing a water repellent. Some products contain chemicals that can be harmful to marine life. Opt for eco-friendly options whenever possible. Many reputable manufacturers now offer biodegradable or non-toxic formulas.
| Type | Pros | Cons |
|---|---|---|
| Spray | Easy application, convenient for quick touch-ups | Can be messy, may not provide long-lasting protection |
| Wipes | Portable, mess-free, great for travel | May not offer the same level of coverage as sprays or creams |
| Cream/Paste | Long-lasting protection, ideal for challenging conditions | Requires more effort to apply evenly |
Preparing Your Camera Housing for Application
Before you even think about applying a water-repellent coating to your camera housing, it’s crucial to make sure the surface is squeaky clean and prepped for optimal bonding. This preparation phase is the foundation of success, ensuring the coating adheres properly and provides the best possible water-shedding performance.
Cleaning the Housing
Start by removing any loose dirt, dust, or debris. A soft brush or microfiber cloth works well for this initial cleaning. Next, you’ll want to tackle any grime or residue that might be clinging to the housing. A mild detergent solution (a few drops of dish soap in warm water) and a clean cloth will usually do the trick. Be sure to rinse thoroughly with clean water afterwards and dry completely with a lint-free cloth. For stubborn residues, consider using isopropyl alcohol (at least 70% concentration) applied with a cotton swab or clean cloth, followed by a thorough rinse with distilled water. This will remove any oily fingerprints or residues that could interfere with the coating’s adhesion.
Inspecting for Damage
Once the housing is clean and dry, take a moment to carefully inspect it for any damage. Look for cracks, scratches, or any other imperfections that could compromise the waterproof seal or the effectiveness of the water-repellent coating. If you find any significant damage, it’s best to address those issues before proceeding. Minor scratches can sometimes be buffed out with a specialized plastic polish, but deeper damage might require professional repair.
Surface Preparation: The Key to a Lasting Coating
This step is often overlooked, but it’s arguably the most important for achieving long-lasting water repellency. The goal is to create a pristine surface that allows the coating to bond effectively. Even after cleaning, microscopic contaminants can remain, hindering the coating’s performance. To ensure optimal adhesion, consider the following steps:
1. Degreasing: Even after cleaning, oils and fingerprints can remain on the surface. Using a dedicated degreaser or a high concentration of isopropyl alcohol (90% or higher) will remove these oils, ensuring a clean slate for the coating.
2. Light Abrasion (Optional but Recommended): Gently abrading the surface with a very fine grit sandpaper (e.g., 2000 grit) or a specialized plastic polishing compound can create microscopic textures that enhance the coating’s grip. This is particularly helpful for smooth plastic housings. Be very gentle during this process to avoid creating visible scratches. After abrading, clean the housing again with isopropyl alcohol to remove any dust or residue created during the process.
3. Final Cleaning with Distilled Water: Before applying the coating, give the housing a final rinse with distilled water. This removes any remaining particles and ensures that no minerals from tap water are left on the surface. Dry thoroughly with a clean, lint-free microfiber cloth.
4. Environmental Considerations: Apply the coating in a clean, dust-free environment. Ideally, the temperature should be moderate (between 60-80°F or 15-27°C) and the humidity relatively low. These conditions will help the coating cure properly.
Recommended Supplies for Surface Preparation
| Item | Purpose |
|---|---|
| Microfiber cloths | Cleaning and drying the housing |
| Mild detergent (dish soap) | Removing general dirt and grime |
| Isopropyl alcohol (70% and 99%) | Disinfecting, degreasing, and final cleaning |
| Distilled water | Final rinsing |
| Fine grit sandpaper (2000 grit or higher) or plastic polishing compound (optional) | Lightly abrading the surface for better adhesion |
| Cotton swabs | Cleaning hard-to-reach areas |
By meticulously following these steps, you’ll create the ideal surface for your water-repellent coating to bond with, leading to significantly improved performance and longevity.
Maintaining the Water Repellency of Your Housing
Keeping your camera housing water repellent is crucial for clear underwater shots and, more importantly, protecting your valuable equipment. Water beading and rolling off the housing port ensures minimal interference with your images and prevents water spots from ruining your photos and videos. Plus, a good hydrophobic coating reduces drag underwater, making maneuvering your camera much smoother.
Why Water Repellency Matters
When water sits on the housing port, it can distort light, create blurry images, and leave unsightly spots in your photos and videos. Think of it like looking through a rain-splattered window. Not ideal, right? A hydrophobic surface encourages water to bead up and roll away, minimizing these issues and providing a clearer view for your camera.
The Science Behind Water Repellency
Water repellency is all about surface tension. A hydrophobic surface has a low surface energy, which means water molecules are more attracted to each other than to the surface. This causes water to form beads, maximizing their contact with each other and minimizing contact with the housing port. This principle allows gravity or water movement to easily sweep the beads away.
Methods for Maintaining Water Repellency
Several methods can help you maintain the water repellency of your camera housing. Choosing the right one depends on your budget, how often you dive, and your personal preferences.
Rain-X and Similar Products
Automotive rain repellent products like Rain-X can be surprisingly effective on camera housings. They create a hydrophobic layer that helps water bead and roll off. However, these products are not specifically designed for underwater use and may require more frequent reapplication.
Dedicated Dive Housing Protectants
Specialized dive housing protectants are formulated for underwater use and offer longer-lasting protection. These products often contain polymers or silicones that create a durable hydrophobic barrier. They’re a bit more expensive than automotive products, but the improved performance and longevity often make them worth the investment. Examples include Ikelite Optic Shield and Sea Frogs Anti-Fog Insert.
DIY Solutions
Some divers swear by DIY solutions like toothpaste or baby shampoo. While these can offer a temporary hydrophobic effect, they’re not as reliable or long-lasting as dedicated products. Plus, some DIY solutions may contain ingredients that could damage your housing over time. Proceed with caution if you choose this route.
Regular Cleaning is Key
No matter which method you choose, regular cleaning is essential for maintaining water repellency. Before each dive, rinse your housing with fresh water and gently wipe it with a soft microfiber cloth. This removes salt, dirt, and other debris that can compromise the hydrophobic coating. After each dive, soak the housing in fresh water for a few minutes to further remove any lingering salt or contaminants.
Product Comparison
Here’s a quick comparison of common water repellency methods:
| Method | Cost | Durability | Ease of Application |
|---|---|---|---|
| Rain-X | Low | Low | Easy |
| Dedicated Dive Products | Medium | High | Easy |
| DIY Solutions | Very Low | Very Low | Easy |
Reapplication Frequency
How often you need to reapply a hydrophobic coating depends on several factors, including the product you use, the frequency of your dives, and the conditions you dive in. As a general rule, reapplying every few dives is a good idea. If you notice water beading less effectively, it’s definitely time for a fresh coat. Don’t wait until water spots start appearing on your images – proactive maintenance is the best way to ensure clear, spot-free underwater photography.
Troubleshooting Common Water Repellency Issues
Check for Residue
Sometimes, the simplest solution is the most effective. A thin layer of grime, sunscreen, salt spray, or even fingerprints can significantly reduce the water repellency of your camera housing. Before you try anything drastic, give the housing a thorough cleaning. Use a mild soap (like dish soap) and warm water. A soft microfiber cloth is ideal for wiping, as it won’t scratch the housing. Rinse thoroughly and dry completely before testing the water repellency again.
Inspect the Housing Seal
A compromised seal is a major culprit for water entering your housing. Carefully inspect the O-ring for any signs of damage, such as cracks, tears, or debris. Make sure the O-ring is properly lubricated with a dedicated silicone grease. This helps maintain a watertight seal and prevents the O-ring from drying out or cracking. If the O-ring looks damaged, replace it immediately with a new one. Also, check the housing itself for any cracks or damage that could compromise its waterproof integrity.
Consider the Environment
Extreme temperatures, particularly cold, can affect the effectiveness of water repellency coatings. In very cold water, the surface tension of the water increases, making it less likely to bead up and roll off. While you can’t control the weather, understanding its impact can help you manage expectations. If you’re shooting in cold water, you might need to dry the housing more frequently.
Re-apply Water Repellent Coating
Over time, the factory-applied water repellent coating on your camera housing can wear off. Thankfully, you can reapply a hydrophobic coating specifically designed for underwater camera housings. These coatings are readily available online or at dive shops. Follow the manufacturer’s instructions carefully for application. Typically, this involves cleaning the housing thoroughly, applying the coating evenly, and allowing it to cure for a specified period.
Test in a Controlled Environment
Before taking your camera housing into the ocean or a pool, it’s always a good idea to test it in a controlled environment. Fill a sink or basin with water and submerge the housing completely. Check for any bubbles indicating leaks. If you see bubbles, you need to go back and troubleshoot the issue. This simple test can save you from a disastrous flood and potentially expensive repairs.
Dealing with Persistent Water Repellency Problems
Understanding the Science of Water Repellency
Water repellency is achieved by creating a surface with a low surface energy. This causes water droplets to form a spherical shape, maximizing their contact angle with the surface and minimizing the contact area. This “beading” effect allows gravity to pull the water droplets off easily. Factors like surface texture and chemical composition play a key role in determining the effectiveness of water repellency.
Deep Dive into Potential Issues
Even after cleaning and reapplying a hydrophobic coating, you might still encounter persistent water repellency issues. This can be due to a number of reasons, including microscopic scratches on the housing surface that trap water, contamination from oils or lotions, or even the type of water you’re shooting in (hard water can leave mineral deposits). Another less common culprit is the degradation of the housing material itself due to prolonged exposure to UV rays or harsh chemicals.
Advanced Troubleshooting Steps
If you’ve exhausted the basic troubleshooting steps, consider these more advanced techniques:
| Problem | Solution |
|---|---|
| Microscopic Scratches | Consider a specialized polishing compound designed for polycarbonate or acrylic housings. Use it sparingly and follow the manufacturer’s instructions carefully. |
| Mineral Deposits | Soak the housing in a solution of white vinegar and water (1:1 ratio) for about 30 minutes, then rinse thoroughly. This can help dissolve mineral buildup. |
| Stubborn Contamination | Try using a dedicated cleaning solution designed for removing oils and grease from camera housings. Isopropyl alcohol can also be effective, but use it cautiously and test it in an inconspicuous area first to ensure it doesn’t damage the housing material. |
If none of these solutions work, it may be time to consult a professional or consider replacing the housing, especially if you suspect damage to the housing material itself.
Testing the Effectiveness of Your Water Repellent
Alright, so you’ve applied your chosen water repellent to your camera housing. Now, the crucial part: making sure it actually works! Testing your water repellent before you take your precious camera gear into potentially wet conditions is absolutely essential. This isn’t just about keeping your housing dry; it’s about protecting your investment and ensuring you get those incredible shots without risking damage. Here’s a breakdown of how to properly test the effectiveness of your water repellent.
Initial Inspection
Before you even think about splashing water, take a good look at your housing. After the repellent has dried (follow the manufacturer’s instructions for drying time), examine the surface carefully. It should appear uniformly coated, without any obvious streaks or dry patches. If you spot any inconsistencies, it’s a sign that you might need to reapply the repellent to those areas. A smooth, even coating is key for optimal performance.
The Droplet Test
This is your first practical test. Grab a spray bottle filled with fresh water (avoid using saltwater for testing as it can leave residue). Lightly mist the housing with the water. Observe how the water droplets behave on the surface. They should bead up and roll off readily, leaving little to no trace. If the droplets spread out or cling to the housing, the repellent isn’t working effectively, and you’ll need to reapply.
The Stream Test
Now, let’s step it up a notch. Instead of misting, use the spray bottle to create a gentle stream of water directed at the housing. Simulate the kind of water exposure your camera might experience in light rain or splashes. Again, the water should bead and roll off easily. Pay close attention to areas around buttons, seals, and any crevices where water might be more likely to collect.
The Immersion Test (Optional but Recommended)
If you’re planning to use your camera in underwater or extremely wet conditions, an immersion test is highly recommended. Before you do this, double-check that all housing seals are properly closed and secured. Submerge the housing in a sink or container filled with fresh water for a short period, perhaps 30 seconds to a minute. After removing the housing, thoroughly dry it and inspect it for any signs of water ingress. If you find any water inside, you’ll need to identify the source of the leak (which might not be related to the water repellent) and address it before using your camera in the field.
Important Considerations for the Immersion Test
Remember, even with a good water repellent, seals are your primary defense against water damage. The immersion test is designed to check the integrity of your seals, not solely the repellent’s performance. If you’re uncomfortable performing an immersion test, consult the manufacturer’s instructions for recommended testing procedures.
The Angle Test
Consider the angles at which water might hit your camera housing in real-world scenarios. Repeat the droplet and stream tests at different angles, including from above, below, and from the sides. This will give you a more comprehensive understanding of how the repellent performs under various conditions.
The Longevity Test
Water repellents don’t last forever. After repeated use and exposure to the elements, they will eventually wear off. It’s important to periodically test the effectiveness of your repellent and reapply as needed. How frequently you need to reapply will depend on the specific product you’re using and the conditions you’re shooting in.
Real-World Simulation
This is where you bring it all together. Think about the specific environments you’ll be shooting in. Will you be out in the rain? Near a waterfall? On a boat? Try to mimic those conditions as closely as possible during your testing. For instance, if you’re going to be shooting near the ocean, consider using a spray bottle filled with a mix of fresh water and a small amount of salt (a teaspoon per liter, for instance) to replicate the salty spray. Observe how the water behaves on the treated housing. This provides the most realistic test of your water repellent’s effectiveness and gives you confidence in its performance when it matters most. Below is a table summarizing each test and its purpose:
| Test | Purpose |
|---|---|
| Initial Inspection | Check for even application of repellent |
| Droplet Test | Observe water beading and roll-off |
| Stream Test | Simulate light rain or splashes |
| Immersion Test | Check seal integrity (optional) |
| Angle Test | Assess performance at different angles |
| Longevity Test | Determine reapplication frequency |
| Real-World Simulation | Mimic specific shooting environments |
Underwater Housing Maintenance for Optimal Water Repellency
Hydrophobic Coatings: Your First Line of Defense
Maintaining good water repellency on your underwater camera housing is key for clear shots and preventing water spots from ruining your images. A primary way to achieve this is by using hydrophobic coatings. These coatings create a surface tension that causes water to bead up and roll off, much like rain on a freshly waxed car. There are various types available, from sprays to wipes, and each offers a different level of durability and effectiveness. Experiment to find one that suits your diving conditions and frequency.
Regular Cleaning is Crucial
Even with a hydrophobic coating, regular cleaning is essential. Saltwater, algae, and other debris can build up on the housing, compromising the coating’s effectiveness. After each dive, rinse your housing thoroughly with fresh water. Pay particular attention to the port area, as this is where water droplets can most easily interfere with your photos and videos.
Gentle Cleaning Methods
When cleaning your housing, avoid harsh chemicals or abrasive materials that could scratch the surface. A soft microfiber cloth and fresh water are usually sufficient. For stubborn grime, a mild detergent diluted in water can be used. Always rinse thoroughly after cleaning to remove any residue.
Drying Techniques
Proper drying is just as important as cleaning. After rinsing, gently dry the housing with a clean, absorbent cloth. Avoid using compressed air, as this can force water into seals and other sensitive areas. Allow the housing to air dry completely before storing it.
Inspecting Seals and O-Rings
Regularly inspect the seals and O-rings on your housing for signs of wear and tear. These components are vital for preventing leaks, but they can degrade over time. Replace them as needed to ensure a watertight seal. Lubricate O-rings with a dedicated silicone grease to maintain their flexibility and effectiveness.
Storage Best Practices
Proper storage can significantly extend the life of your underwater housing. Store it in a cool, dry place away from direct sunlight and extreme temperatures. Avoid storing it with the port facing downwards, as this can trap moisture. Consider using a desiccant pack inside the housing to absorb any residual humidity.
Dealing with Stubborn Water Spots
Even with diligent care, stubborn water spots can sometimes appear. If plain water isn’t enough to remove them, try a dedicated water spot remover designed for camera lenses or underwater housing ports. Apply it sparingly with a microfiber cloth and gently buff the affected area. For particularly persistent spots, a very dilute solution of white vinegar can be effective. Always test any cleaning solution on a small, inconspicuous area first to ensure it doesn’t damage the housing.
Choosing the Right Hydrophobic Products and Tools
Selecting the appropriate hydrophobic products and cleaning tools can greatly impact the effectiveness of your water repellency maintenance routine. When choosing a hydrophobic coating, consider the longevity of its protection, ease of application, and its suitability for your specific housing material. Some coatings are designed for polycarbonate housings, while others are better suited for aluminum or other metals. Here’s a quick breakdown of some common options and their general characteristics:
| Product Type | Longevity | Application | Considerations |
|---|---|---|---|
| Sprays | Moderate | Easy | Can be uneven if not applied correctly |
| Wipes | Lower | Very Easy | Convenient for travel |
| Liquid Coatings | High | More Involved | Provides the most durable protection |
As for cleaning tools, microfiber cloths are essential. Ensure they are dedicated solely to your camera equipment to avoid cross-contamination with abrasive particles. A lens cleaning pen can also be useful for removing dust and smudges from the port. Finally, keep dedicated silicone grease on hand to lubricate O-rings and maintain the watertight seal of your housing.
Ensuring Water Rolls Off Camera Housing
Maintaining a clear view through your camera housing underwater is crucial for capturing quality footage. Water droplets clinging to the housing’s port can distort and obscure the image. Achieving efficient water shedding involves a combination of choosing the right housing materials, applying appropriate coatings, and employing smart in-water techniques.
Hydrophobic coatings are essential for promoting water runoff. These coatings create a low-surface-energy barrier that prevents water from spreading and encourages beading. Regularly applying and maintaining these coatings is paramount. Look for specialized coatings designed for underwater photography equipment, ensuring compatibility with your housing’s material.
The housing’s port material also plays a significant role. Glass ports, while offering superior optical clarity, tend to retain water more than acrylic ports. If using a glass port, meticulous application and maintenance of the hydrophobic coating are even more critical. In-water techniques like gently shaking the housing or directing a stream of air bubbles towards the port can also help dislodge clinging droplets.
Furthermore, consider environmental factors. Cold water tends to cause water to bead more readily than warm water. Similarly, the presence of oils or other contaminants on the port can compromise the effectiveness of the hydrophobic coating. Regular cleaning with a dedicated lens cleaning solution designed for underwater use is crucial.
People Also Ask About How to Get Water to Roll Off Camera Housing
How do hydrophobic coatings work?
Hydrophobic coatings create a surface that repels water. They achieve this by lowering the surface energy. Water droplets landing on a hydrophobic surface form tight beads due to surface tension, minimizing contact area and facilitating easy runoff.
What’s the best way to apply a hydrophobic coating?
Thorough cleaning of the port is crucial before applying any coating. Use a dedicated lens cleaning solution and a microfiber cloth. Apply the hydrophobic coating in a thin, even layer according to the manufacturer’s instructions. Multiple thin coats are generally more effective than a single thick coat. Allow the coating to cure completely before using the housing underwater.
Can I use Rain-X on my camera housing?
While Rain-X is designed for automotive glass, it’s generally not recommended for underwater camera housings. Specialized hydrophobic coatings formulated for underwater photography equipment provide superior performance and are less likely to negatively interact with the housing material or the underwater environment.
How often should I reapply the coating?
The frequency of reapplication depends on factors like usage, water conditions, and the specific coating used. As a general rule, it’s a good practice to reapply the coating before every dive trip or extended underwater photography session. Inspect the coating regularly for signs of wear or reduced effectiveness.
What should I do if water still clings to the port despite using a hydrophobic coating?
If water droplets persist, try gently shaking the housing or directing a stream of air bubbles toward the port. Ensure the port is thoroughly clean and free of oils or other contaminants. If the problem persists, the coating may need reapplication, or there might be an issue with the coating itself. Consider trying a different brand of hydrophobic coating.