UV filter VS CPL
- Thread starter Nikonguy
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http://en.wikipedia.org/wiki/Photographic_filter#Polarizer
UV and Polarizers are for different uses. Vignetting issues is caused by the thickness of the filter thread. To avoid vignetting get a slim version of the filter. Popular brands like HOYA and B+W carry them.
UV and Polarizers are for different uses. Vignetting issues is caused by the thickness of the filter thread. To avoid vignetting get a slim version of the filter. Popular brands like HOYA and B+W carry them.
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ur question can be interperated in 2 ways...
1st: CPL filters are not replacements for UV filters and vice versa, they are different filters and server different purposes, so answer is "NO" disavantage nor disavantage.
2nd: using CPL over UV filters, taking to mean stacking CPL on top of UV filters is generally not encouraged as it will result in vignetting esp at wider angle and pic IQ may dropped.
you need to read up more about photography
uv filter is usually just for protection, it isn't actually needed.
cpl is for many other things. see lordpain's link.
uv filter is usually just for protection, it isn't actually needed.
cpl is for many other things. see lordpain's link.
ok, thanks people.
Didnt know it will create such a huge difference. Confirm must get it over UV filters.
So let say if I never use filter( shutter speed 1/500) and after using cpl, will it become slower shutter speed?
Thanks
Yes, subtract ~ 2 stops of light.
Didnt know it will create such a huge difference. Confirm must get it over UV filters.
Didn't they all say "Don't stack"? or what do you mean with "must get over UV"?
No such generic answer. To be precise: the amount of light is reduced, hence the exposure will be -1EV or up to -2EV if not corrected by other means. Depending on the Program Mode of your camera either the aperture is opened as correction (in Shutter Priority Mode) or the shutter speed is lowered (in Aperture Priority Mode). Manual will only show the lower resulting exposure level.
bro i think u are driving some us crazy with ur replies, cos it seems the more u reply the more confused u sound abt CPL and UV filters.
i don't understand why u should "prefer" CPL to UV when they basically serve different purposes. it's like saying u prefer a fork to a spoon.
u must first understand why u need or use a CPL filter for. so do u know what CPL does for u?
lastly as to ur qn abt whether CPL us easy to use, answer is "YES" but do people use it wrongly? answer is also "YES"
google and read up more.
i don't understand why u should "prefer" CPL to UV when they basically serve different purposes. it's like saying u prefer a fork to a spoon.
u must first understand why u need or use a CPL filter for. so do u know what CPL does for u?
lastly as to ur qn abt whether CPL us easy to use, answer is "YES" but do people use it wrongly? answer is also "YES"
google and read up more.
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Wa, haha
Apologise if i confused... The more i read, i get even more confuse.
I understand CPL is for landscape where beautiful blue sky and green trees are captured.
It has its purpose to minimise reflections on glass and water.
Tio bo?
haha textbook answer... u got "A"
next for practical, which is to understand when in what situationa and lighting it'll be useful or useless/pointless. then u can decide if u need it on ur lens all the time or not. cos as mentioned, the CPL filter does add abt 2 stops usually, resulting in a need for slower shutter, higher ISO, which means more noise or shake/bluring.... from ur replies it sounds like u intend to have a CPL on ur lens all the time (doubling it as a lens protector)
:bsmilie::bsmilie: Cool down brother, I was wonder who will answer the last question. I think he is confused. Give him a chance :bsmilie::bsmilie:
Well, by the way, no one is angry
Gimme chance to learn more so next time i teach people the right way.:bsmilie:
So are u using CPL as well?
yes, 52mm, 62mm, 72mm, 77mm.Well, by the way, no one is angry
Gimme chance to learn more so next time i teach people the right way.:bsmilie:
So are u using CPL as well?
read this ..
http://www.clubsnap.com/forums/showthread.php?t=551705
CPL is used when there is ample light to filter (blue sky) and reflections. In the absence of sun light (e.g. at night) there's nothing left to filter - so take it off. Filters are tools, use them when needed. Secondly, in case the resulting shutter speed is too low for handholding then you can a) increase ISO; or b) use a tripod.
Why on earth would you use a CPL in low light conditions?
Please try to read up on when to use what filter.
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