karusel
3rd of June 2005 (Fri), 13:56
I hope this hasn't been debated too many times... Also, sorry for a bad title to the thread, I had no idea what else to put there.
Everytime I hit ctrl+alt+l in PS image just jumps on contrast (btw, I do know how this works and I pretty much understand levels, curves and all that), now why exactly is this? I don't recall a regular shot on film would need a levels adjustment...
Does this perhaps have something to do with either/both of the following:
-smaller than 35mm sensor with EF lens, thus allowing more stray light to enter inside of the camera?
-the reflection from the sensor surface to the lens back element and back which also contributes to loss of sharpness?
When I was experimenting with a 28-80 lens from which I removed the front element to obtain supermacro abilities, when extended to 80mm the lens would have A LOT of stray light come in so the image looked really pale and lacked contrast therefore autolevels looked like a miracle. So hey, I thought maybe there's a stray light problem also with some other lens.
Everytime I hit ctrl+alt+l in PS image just jumps on contrast (btw, I do know how this works and I pretty much understand levels, curves and all that), now why exactly is this? I don't recall a regular shot on film would need a levels adjustment...
Does this perhaps have something to do with either/both of the following:
-smaller than 35mm sensor with EF lens, thus allowing more stray light to enter inside of the camera?
-the reflection from the sensor surface to the lens back element and back which also contributes to loss of sharpness?
When I was experimenting with a 28-80 lens from which I removed the front element to obtain supermacro abilities, when extended to 80mm the lens would have A LOT of stray light come in so the image looked really pale and lacked contrast therefore autolevels looked like a miracle. So hey, I thought maybe there's a stray light problem also with some other lens.