Hey,
I'm thinking about getting a polarizer, but there are two issues I'd love to hear your opinion on.
Number one is technical. With DSLRs, is there a difference between linear and circular polarizers? I have heard that digital SLRs would somehow need circular polarizers due to their optics, but I'm not sure I can believe that. Apart from that, do they produce different images? (Minor additional point: I've seen that rotating a circular polarizer leads to differences. In what way are they circular if rotating changes the output?)
Point number two is more philosophical. Polarizers are obviously changing the image the camera captures, making it different (well, actually differently different) from how the scene has been. Do you think it'd be more appropriate to emulate the effect in postprocessing (if that's possible at all), to have the original image as close as possible (or closer) to the "real" thing? More generally, do you like to capture what you see as closely as you can - or do you add another step (apart from framing, focussing, etc.) that is artistic that early in the progess of getting an image?
I would love to hear your opinion and commenst!
Pit
I'm thinking about getting a polarizer, but there are two issues I'd love to hear your opinion on.
Number one is technical. With DSLRs, is there a difference between linear and circular polarizers? I have heard that digital SLRs would somehow need circular polarizers due to their optics, but I'm not sure I can believe that. Apart from that, do they produce different images? (Minor additional point: I've seen that rotating a circular polarizer leads to differences. In what way are they circular if rotating changes the output?)
Point number two is more philosophical. Polarizers are obviously changing the image the camera captures, making it different (well, actually differently different) from how the scene has been. Do you think it'd be more appropriate to emulate the effect in postprocessing (if that's possible at all), to have the original image as close as possible (or closer) to the "real" thing? More generally, do you like to capture what you see as closely as you can - or do you add another step (apart from framing, focussing, etc.) that is artistic that early in the progess of getting an image?
I would love to hear your opinion and commenst!
Pit