Use of 2 polarizers
Dec 8, 2023 08:47:12 #
Instead of using several ND filters is it posable to use 2 polarizing filters to restrict the light?
Dec 8, 2023 09:14:12 #
If you use 2 polarizers you could create a variable ND filter by adjusting the angle of the 2 polarizers. However, I think it has a color cast.
Dec 8, 2023 09:19:13 #
BebuLamar wrote:
If you use 2 polarizers you could create a variable ND filter by adjusting the angle of the 2 polarizers. However, I think it has a color cast.
Then there's the problem of rotating one without rotating the other.
Dec 8, 2023 09:29:39 #
Dec 8, 2023 12:03:44 #
Yes. Also, therefore a number of sources are available for Variance Neutral Density filters which employ that principal.
Dec 8, 2023 13:40:52 #
Either way can work , but with polarizers and wide lenses you could get some unwanted sky effects.
Dec 8, 2023 14:00:02 #
I've never found a CPL that was cheaper than an ND filter. Why not just get the ND filter(s) you need?
Dec 8, 2023 14:50:01 #
Stan Fayer wrote:
Instead of using several ND filters is it posable to use 2 polarizing filters to restrict the light?
Why not three or perhaps add a red filter with a dehaze filter?
Bruce Lee was quoted as saying the key to brilliance is simplicity. True in martial arts and true in most things. Need to cut down on reflections? Use a polarizer. Need to reduce light to get a longer shutter speed, use an ND filter. Don’t fumble around with this unless it is some sort of experiment for experiment's sake.
Otherwise. Simplify and go make some photos.
Dec 8, 2023 16:08:37 #
CHG_CANON wrote:
I've never found a CPL that was cheaper than an ND filter. Why not just get the ND filter(s) you need?
Use the linear ones work better.
Dec 8, 2023 16:26:26 #
It is sort of an experiment, as we were talking about shooting a solar eclipse and using ND filters. I was looking for comments. Thanks Folks
Dec 8, 2023 16:36:50 #
Stan Fayer wrote:
It is sort of an experiment, as we were talking about shooting a solar eclipse and using ND filters. I was looking for comments. Thanks Folks
If not already, you need to research the strength filter to shoot an eclipse so you don't melt the insides of your camera. Stacked CPLs are unlikely to meet the minimum requirement.
Dec 8, 2023 16:38:57 #
CHG_CANON wrote:
If not already, you need to research the strength filter to shoot an eclipse so you don't melt the insides of your camera. Stacked CPLs are unlikely to meet the minimum requirement.
Dec 8, 2023 17:00:27 #
Dec 8, 2023 17:03:24 #
larryepage
Loc: North Texas area
CHG_CANON wrote:
If not already, you need to research the strength filter to shoot an eclipse so you don't melt the insides of your camera. Stacked CPLs are unlikely to meet the minimum requirement.
Even for less rigorous requirements, when I have experimented with crossed polarizers, I have found them to often be "splotchy."
Dec 8, 2023 18:22:19 #
Stan Fayer wrote:
Using linear filters (2) I have been able to block out light completely .
Check your insurance before heading out to the eclipse ...
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