![]() ![]() But once a year silica gels needs to be loaded. When the silica dries out, its colour will become the original blue.īy doing this, my dozens of lenses of telescope and binoculars are ok, and have been for the last 30 years. ![]() When the silica is white, take out the silica gel and reheat it so that the absorbed moisture will be evaporated. What I did purchased one cylindrical drum (use for keeping grains in the kitchen) and put a half kg of silica gel in a small container in the bottom, and covered with another steel lid that has holes so that the silica would be able to absorb moisture from lenses are sitting above the silica container.Īs the silica gel absorbs moisture, it gradually changes colour from blue to white. I think it's better than exposed open to sun as some dirt and moisture from the environment will make the lenses dirty. It would be better to put the lenses in an ordinary stainless steel container and put the UV on for few hours don't look at it while it's on. This will let the vinegar work on any remaining mold spores and help prevent regrowth. This time, allow the vinegar to dry naturally rather than rinsing it away. When it has dried, spray the area again with undiluted vinegar. Just be sure to mark the position of each piece relative to the piece it is attached to before you loosen anything, particularly anything that looks like an optical adjustment.įor some hints on how lenses are put together and how to do simple cleaning of the easy-to-get-to internal parts of some of them, take a look at this blog entry from Roger Cicala, the founder and chief lens guru at . After a good scrubbing, rinse the area with warm water and then allow it to dry completely. I've done it with a Tamron SP 17-50mm f/2.8 Di II. Depending on how your lens is constructed, you might be able to do that, clean the back of the front element, along with the front of the next element, and put it all back together relatively painlessly. While the soil is spread out in the sun, you can even spray it over with a mixture of water and baking soda. This allows for the sun to deal with the mold without burning or drying out your houseplant. Just another reason to remove any UV filter you might have on the lens for no real logical reason.īeyond that, some lenses make it fairly easy to remove the front element from the front. There are two ways to dry out your potting soil using the sunlight. Those conditions are heat, moisture, and protection from UV light. How Does UV Light Kill Mold UV light is able to effectively kill mold because the electromagnetic radiation that it produces is able to work as a disinfectant and can penetrate through organisms. Since fungus is a spore, it can lie dormant for very long periods of time, then flourish again when the conditions are favorable. But you'll likely need to continue to expose the lens to UV light regularly. If it does not affect image quality, then that might not be a short-term concern. Unfortunately, killing the fungus is not removing it. Be sure to remove any UV filter you might have attached to the front of the lens. UV light will kill the fungus, so all you need to do is let the lens be exposed to sunlight for a few days. ![]()
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