PacAce wrote:
Here's a question for the "experts" out there:
If the digital cameras, such as the 10D, inherently produce soft images which have to be post-processed, then does that mean that the sharpness (and maybe even the contrastiness) of the Canon "L" lens is "wasted" on these cameras since the images would have to be sharpened using Photoshop or some other editor? Or, put another way, what's the difference between using an "L" lens and a consumer grade lens if the images from both of these lenses have to be sharpened during post-processing anyway???
The sharpening you do is not really adding resolution (which is what a sharp lens does), but rather adding acutance, or edge contrast. Sharpening will not make a soft lens look sharp. It works at the pixel level, while a soft lens will smear the image over several pixels. If you set the sharpening parameters to work at that scale, you'll ugly up the image in a hurry unless your prints are going to be very small, in which case it doesn't matter anyway.
Most studies I've seen have shown that, if anything, lens performance is even more critical with digital imaging. Part of the reason for that is that you will be seeing your images at much higher magnifications, and partly it is because of the interference patterns between fuzzy details and pixels.
Rick "whose cheap lenses became truly unacceptable only AFTER buying a 10D" Denney