I had a question regarding a certain frustration I've had with landscape shooting: wide angle + circular polarizers.
The CPL has been a staple for me -- principally for contrast management with the sky in landscape work. But as I am sure you all know, the effect is variable depending upon your angle to the sun. Couple that with a wide angle lens, and whammo, you induce that ever-so-nasty local darkening/brightening in the sky -- I've been calling it 'CPL-pseudo vignetting.' (It didn't really need a term, to be fair.)
Boring examples attached. One with the maximum polarization, one with minimum. Shot on a 5D3 with the 24-70 F/2.8L I on the 24mm end. Straight JPG off the camera (I usually shoot RAW), re-sized only.
From a composition perspective, it seems like I only have four convenient choices to choose between:
- Accept the pseudo-vignetting and take the shot. Some dark blue sky is better than none. I usually take this option.
- Below a certain focal length, don't use the CPL and accept a glaring cyan sky.
- Zoom in until the effect is minimized (on FF: at least 35, more like 50 to me).
- Move my feet, turn, etc. to cleverly reframe to put the darkness in a shady spot (if you can).
I have, of course, left out things impractical options like waiting for better / more even light, assembling multiple exposures or completely editing the sky down in post.
Physics are what they are, I'm looking less for a solution so much as a *convenient* thought process to net solid shots in these situations without a large post-processing task. I strongly would like to get this right in-camera if possible.
Thoughts? I appreciate your insights!