Wearing Transitions or polarized sunglasses when taking pics a pblm?

Started Mar 26, 2009 | Discussions
Dave W.
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Wearing Transitions or polarized sunglasses when taking pics a pblm?
Mar 26, 2009

Does looking through a viewfinder when taking pics or looking at the results on the LCD get compromised if you are wearing glasses with darkened transition lenses or polarized prescription sunglasses? Would you not be able to see correctly the effects of a CPL filter and not be able to correct a photo with highlights blown because it looked okay to you? Right now I have glasses with snap-on polarized sunglasses and am thinking of getting prescription sunglasses or transition lenses. I don't want to have to take them off every time I take a picture outside and switch to regular glasses. Easier to pop off the snapons if I have to. Comments?
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James Sherman
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to Dave W., Mar 27, 2009

Polarized sunglasses and a CPol will black out the viewfinder when the polarizer is turned "just right". Try it with your clip ons. Can't say about the Transitions.

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alan17
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Transitions are OK
In reply to James Sherman, Mar 27, 2009

I wear transitions and they are not polarised - so the CPL should be unaffected. However, I do find that they change so smoothly that I really have a hard time knowing how bright the world really is. Therefore I don't think you get as good a feel for shutter speed etc as you do wearing clear glasses. Also, viewing the monitor is also slightly more difficult, and seeing the display in the viewfinder was sometimes tricky with my D40 - not problems with my D90 yet though.

Alan

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TOR8472
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to Dave W., Mar 27, 2009

I have transition lenses and use them with no problems when taking photos.

I also have prescription polarizing sunglasses - big problem with a polarizing filter. I have to remove them when using a polarizing filter, otherwise, no problem taking photos with them.

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Kjelon
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to TOR8472, Mar 28, 2009

Forgive me if this is an idiot question, but can anyone explain scientifically why polarized lenses and filters won't work together? Maybe it's just the way my mind works and the fact that I don't have a bunch of experience with a CPL yet, but I can't wrap my head around why this doesn't work. Thanks.

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kalniel
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to Kjelon, Mar 28, 2009

Kjelon wrote:

Forgive me if this is an idiot question, but can anyone explain
scientifically why polarized lenses and filters won't work together?
Maybe it's just the way my mind works and the fact that I don't have
a bunch of experience with a CPL yet, but I can't wrap my head around
why this doesn't work. Thanks.

Light 'waves' each travel in a fixed flat plane, but different waves are at different angles - imagine a bunch of rulers with wave patterns drawn on them held at different rotations. Polarisers only let light 'waves' in at a particular angle, so they block all the rulers that aren't at the correct angle of the filter 'slot'. Now imagine that you have two polarisers in a row (sunglasses and a CPL) - if the slots are lined up exactly then the ruler can still pass through them. However, if you rotate one of the slots relative to the other then any angle that gets through the first slot can't get through the second without rotating, which it can't do as it's fixed.

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Kjelon
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to kalniel, Mar 28, 2009

Thanks, that's kind of what I was thinking, it is just the combination of a circular polarizer that can be at many different alignments versus the stable vertical alignment of the sunglasses. I appreciate the help.

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grapher
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to Kjelon, Mar 28, 2009
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That would be the case with a linear polarizer, but we are talking circular polarizer. The CPL shifts the light-waves back to an irregular pattern after the polarizing.

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James Sherman
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to grapher, Mar 30, 2009

The viewfinder still goes black....

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rhaa01
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Highlights
In reply to Dave W., Mar 30, 2009

Turn on the highlight blinking mode - it makes it really easy to tell when highlights are blown, sunglasses or not.

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Richard H.

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parisphotog
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Re: Wearing Transitions or polarized sunglasses when taking pics a pblm?
In reply to Dave W., Mar 30, 2009

Can't comment on your choices but my sunglasses raise the color temp. by about 150 Kelvin and I've noticed the green viewfinder information is sometimes hard to see.

Dave W. wrote:

Does looking through a viewfinder when taking pics or looking at the
results on the LCD get compromised if you are wearing glasses with
darkened transition lenses or polarized prescription sunglasses?
Would you not be able to see correctly the effects of a CPL filter
and not be able to correct a photo with highlights blown because it
looked okay to you? Right now I have glasses with snap-on polarized
sunglasses and am thinking of getting prescription sunglasses or
transition lenses. I don't want to have to take them off every time
I take a picture outside and switch to regular glasses. Easier to
pop off the snapons if I have to. Comments?

Reply   Reply with quote   Complain
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