is a uv filter on a digital camera really necessary or does it decrease the image quality any?
Darrius
UV is supposed to block ultaviolet light, and the reason for blocking it is that the blue component in daylight contains UV also, and that causes the blue part of the image to get a bit more exposure, making your image bluish.
But, digital cameras have sophisticated white balance algorithms which are supposed to make sure your colors come out just fine, so an initial answer would be no.
In fact, as my link points out, a lot of lenses filter UV already, leaving the filter obsolete.
A good portion of photogs put the uv filter on only when they are not using any other filter, because they always want to keep one filter on the lens for protection. What would you rather scratch? The filter or the lens?
But no photog would argue though that image quality suffers when you put any type of glass in front of the lens, including a UV filter. Not by much, but its there.
And this is where the debate is. Is it worth to put the filter to protect that expensive lens? especially when you've invested so much to buy a high quality image just to reduce the quality of its outputs with a cheap UV lens? Or is it more important to protect it from scratches?
Personally, if I had an expensive lens, yes, I'd have a filter on it all the time, but each individual photog has their preferences.
brown colour
one of the usage of uvfilter is to protect the glass of the lens and it is related to optical system.so its advantages are too more than its disadvantages and not bad to know that some of the proffesional photographers have uv for their filter specially those who live or work in "ostova"zone.
its10after10
both. its necessary if you dont want to mess up your 1000 dollar lens, use the uv for protection.
image quality....depends on the quality of the filter. the cheap ones are a simple piece of glass. and what happens is the light tends to bounce back and forth between the lens and the filter creating halos and flaires, if you spend a little money get a mulit coated lens, the coating reduces this phenominon. as for properties, uv does absolutely nothing to alter the image, if you want to reduce that blueish atmospheric haze, use a skylight filter (1a, or 1b). you will notice it has a slight pinkish tone, thats what balances out the blue. great for portraits too, enhances skin tone. same concept for multi coating. digital has white balance, but a good professional digital should work as closesly to film as possible.
Orignal From: Tips And Tricks: is a uv filter on a digital camera really necessary or does it decrease the image quality any?
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