There is a physical elliptical or circular polarization of light. It has to do with light passing through anisotropic media in which two right angle polarized components that are out-of-phase occur. Here in filter-land I think circular polarizer means that the front element 'twists.'
Anyone do business with Fumfie Camera? They are offering a Nikon D7200 body for $799 with a store warranty, I suspect it is a grey market camera. But price dictates I do research. Thanks for any input you guys can give me. Royce
I tried Googling both Fumfile and Fumfie and didn't get a camera store type of hit. Do we have the correct spelling?
Mark, are you able to 'select' multiple image files so that you can 'group' transfer from card to hard drive? If so, direct file transfer would be more efficient than single file transfer by LR. On a Mac file group transfer is elementary, but I don't know if you can do that under Windows on a PC.
I downloaded the image fir the express purpose of examining the reflections in the boy's sunglasses. The right lense shows a dark splotch that seems to look like the photographer. The left lense seens to show at least two, if not three, children. Intereting.
Because the stars are moving away from us, physics tells their light is red shifted. How is that measured as there is no nearly adjacent star that is not moving and whose light is not red-shifted, so there is no other light to compare spectrographically.
There is an anticipation that Arctic based Snowy Owls are starting to move south as feed allows. So if you live north of latitude 45 - 46 degrees, you stand a fair chance to spotting a Snowy and getting some spectacular images.
It's not that digital cameras need circular polarizing filters, it's that autofocus lenses need them.
The only reason for using a polarizing filter is to control incoming polarized light. All reflecting surfaces polarize light to one degree or another. Quenching thr polarized component often yields more detail and texture in leaves, flowers, wood, cars, etc. A filter should have little or nothing to do with auto focusing or auto exposing.