what are the benefits or downside of leaving the cpl filter on my 24-70. f 2.8 lense. it seems to take good images indoors and outdoors.
The downside is the loss of light, generally 1 2/3-2 1/3 stops.
I set the shutter at 1/125 and let the ISO take over. have shot indoors at iso 8000 with good results
Mac
Loc: Pittsburgh, Philadelphia now Hernando Co. Fl.
innershield wrote:
what are the benefits or downside of leaving the cpl filter on my 24-70. f 2.8 lense. it seems to take good images indoors and outdoors.
Benefit: It will help make the clouds stand out, pump up colors, cut glare and reflections from non-metallic surfaces.
Downsides: At focal lengths of less than 50mm you get an uneven sky, the wider you go, the more apparent they will be.
innershield wrote:
I set the shutter at 1/125 and let the ISO take over. have shot indoors at iso 8000 with good results
But without the polarizer, your ISO could be much lower, your viewfinder much brighter and the image quality better.
innershield wrote:
what are the benefits or downside of leaving the cpl filter on my 24-70. f 2.8 lense. it seems to take good images indoors and outdoors.
I see no reason to keep it on all the time. It's usable only at 90° to the sun, and only if you want to eliminate reflections or enhance colors. Otherwise, you lose some light. I use Xume magnetic adapters, so I can take the filter off and pop it back on in no time, which is what I did yesterday at a car show. The sun was seldom at an angle that would make any difference, so I shot mostly without the filter.
With nikons it is advised not to use matrix metering with polarizers
All polarizer filters loose 2 stops of light at full polarization. Do you like that in your daily photography? Polarizers are very useful filters that many photographers use routinely to darken the sky, saturate colors and eliminate or suppress reflections from non metallic surfaces.
It is not in the best interest of your photography to keep the filter on for all of your shots. Filters tend to get dirty which could be of disastrous consequences for your photographs. Polarizers shine for landscape photography and at times I have used them as a 2 stop ND filter.
In my case, I only use a polarizer when I have use for it.
I have found that taking the circular polarizer off indoors definitely makes a difference. Better off.
GoofyNewfie wrote:
But without the polarizer, your ISO could be much lower, your viewfinder much brighter and the image quality better.
So, you're saying that's the only reason to remove it?
OddJobber wrote:
So, you're saying that's the only reason to remove it?
Nope, just for starters...
I only put one on when I need it and that's not very often.
The only advantage I can think of is that you'll have your CPL readily available whenever you need it. The downside, as stated, is the loss of light. You say it doesn't affect image quality, so I won't argue, but I would only use a CPL filter in those situations where I need (or want) a CPL.
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