By eye safety, is the UV almost blocked out completely? Too much exposure to UV can cause cataract damage.
1888850
The plastic plate that the bulb shows thru is milky white. It takes a daylight fluorescent. The light that shows underneath does not come through Very bright, Just a soft glow.
2195265
No, but all of the lenses block 99% of UV light, and the dark ones do help with reducing glare. I am actually using them as sunglasses.
15114
According to this window film manufacturer, UV light only accounts for 40% of fading, and most windows block 20-40% of UV just by being glass. This would slow fading, but not prevent it entirely. http://solarsolutionsny.com/fading.html
2225907
You CANNOT see the UV light. When the UV light is engaged, there is a bright blue indicator light. However, this is not the UV light. The blue indicator light will not damage your eyes or skin. The actual UV lightbulb is mostly protected from exposure inside the filter's housing. I believe the warning in the instructions refers to viewing the light when the purifier is disassembled.
1948594
Treat s any high quality lens. Would suggest putting a b and w uv filter for protection
727744
The UV filter blocks Ultra Violet light which in certain situation can cause pictures to blur somewhat. They can be useful at high altitudes or places with very clear air. They are often used as a clear filter to add a layer of protection to the lens glass as the filter is cheaper to replace. The polarizing filter will filter out polarized light and glare. Its great for shooting in sunlight and will make colors much more vibrant (saturated.) I live in a desert area and never shoot outside during the day without one.
979155
anything will block a UV ray. even a clear plastic lid will block the rays. I did an experiment in my microbiology lab where we exposed two plates with bacteria to UV light. One plate was covered by a clear plastic lid and the other was not. The bacteria on the exposed plate had no bacteria growth because it was killed by the UV, the plate covered by the clear plastic lid did have growth. The lid provided adequate UV protection even with the plastic being clear. As long as the rays are being interfered with by something, they cannot be absorbed, whether it be clear, opaque or solid.
2146541
Good question, I think the size of the machine since it is smaller and compact that the uv rays from the light may be too much for it, and be dangerous. Hope that helps :)
270528
No more then any other lens. I use a UV filter to protect the lens/glass but not required. If you choose to you can use other select filters.
721660
I'm not an expert, but to my knowledge, lens protection is main purpose. No added value to photo using clear glass. Since it's an extra layer of glass, there will be very slight impact on light transmission, but I certainly don't have a finely calibrated eye to see it with my camera and photo's I shoot. If you already have UV filter on your lens, you don't need to add NC.
2093433
This should not have happened, possible threads crossed or put on too tight or put on when uv lens was warm then contracts when cool and locks. Best advice is go a reputable photo shop and they will help if all else fails.
2019453
It blocks up to 540nm light and the specification for the specific tint says that it blocks greater than 98% blue light. See page 14 of http://www.uvex.us/uploadedFiles/ProductConfiguration/ProductLiterature/Uvex_Lens_Tech_Update2011.pdf
874343
its harmful ultraviolet rays - same as when you purchase sunglasses with ua protection
2120659
I do want to help but it will be better to contact the manufacturer. What I know is to be carefull with uv rays produced - no uv rays on your skin, not either on your eyes, bear eyesglass protecting uv, follow the manufaturer's rules. It is a wonderfull machine.
1709902
Hello, HG, I have to admit I have twice now used the blacklight flashlight at night just to look for pet urine and I haven't been wearing protective UV glasses. I just had a long discussion about this with my spouse who was a scientist and who told me that for my small use of that flashlight there is very little likelihood of my having any damage to my eyes; however, "little likelihood" is not a comforting thought to me and so I think I will acquire a pair of those glasses. I don't like to take chances with my eyes. Thank you for mentioning this possible problem.
884687
I have used only one small bottle of the carnosine eyedrops. I take lots of vitamins for the eyes, lutein etc. I am 87 yrs old and still drive. My eye doctor says my cataracts have been stable for several years.
909946
Yes, it is better to take it out for the use you refer to, as it cuts light.Just have the normal UV - lens protecting filter on.