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Did you know? From the Silly to the Informative!!
on August 29, 2014
Its clear, Its round, It fit…
Don't get bamboozled by the perfection police that are put on this earth to make you feel that you must buy the most expensive to create the most amazing. Heck… look at Georges Méliès or Charles Chaplin…. and what about finger paint? Very uncivilized yet beautiful and FUN.
Tiffen is a great brand… and It will protect your lens - somewhat!
Read what Robert M. Atkins says on Photo.net after much testing on Hoya, Tiffen and the like:
"…UV… why would be want to block it? Well the answer lies in the way that color film works. There are basically three color sensitive layers, one sensitive to red light, one to green light and one to blue light. The blue layer not only responds to blue light, but also to UV light, so if there is a lot of UV around the blue sensitive layer gets extra exposure and the final image takes on a blue color. Since film isn't normally sensitive to infrared, you don't need an infrared blocking filter. Interestingly though, digital sensors are infrared sensitive and most digital cameras have an infrared blocking filter built in.
Now there isn't usually a huge amount of UV around at sea level. There is some (that's what gives you a suntan or a sunburn) but most of it is scattered by the atmosphere. However as you gain altitude, for example by going up a mountain, the amount of UV increases. Under these conditions a UV filter can prevent a blue cast in photographs.
Since UV filters look clear and neutral to the naked eye, some people also use them as a protective filter which they leave on their lens at all times. Some people think this is a good idea, other question the wisdom placing a $20 filter in front of a $1000 lens and potentially affecting image quality. Both schools of thought have some valid points. It's your choice.
...What I actually use when I need a UV filter or a protective filter is a Tiffen 812. Usually, for the type of work I do, a warmer image isn't a problem, indeed it's often desirable. I also like to minimize the number of filters I carry so my 812 serves three functions. It blocks UV, it protects the lens and it's a warming filter. Some people use an 81B for this, but I slightly prefer the color shift of the 812. Not everyone wants a warming filter, so the clear winner for a neutral filter that really bocks UV is the Tiffen Haze-1, though the Hoya UV should also be pretty effective. "