OK all along I've been boasting that you can get good results with a cheap lens, because you can use always use Photoshop to sharpen the image.
Then I read somewhere a couple of months back that there is a difference between sharpness and accutance (also spelled acutance), so using a good lens DOES make a difference.
I would now like to find more about this difference. I'm Googling "accutance" now, but if any pro's out there can enlighten me further about "accutance" I would be glad to hear what you've got to say. The stuff that Goggle is trawling out is a bit beyond me. This is probably the least chim discussion:
http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=000dhx
More specifically, I would like to know whether USM improves sharpness or accutance, and similarly what a good (expensive) lens does vs a cheap lens (not that I'm going to start buying expensive lenses, mind you...)
On a related note, I don't know if anyone has noticed this, but adding a bit of Gaussian Noise to a blurry image tends to sharpen it somewhat. Try it. Then tell me: How does THIS work?
Then I read somewhere a couple of months back that there is a difference between sharpness and accutance (also spelled acutance), so using a good lens DOES make a difference.
I would now like to find more about this difference. I'm Googling "accutance" now, but if any pro's out there can enlighten me further about "accutance" I would be glad to hear what you've got to say. The stuff that Goggle is trawling out is a bit beyond me. This is probably the least chim discussion:
http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=000dhx
More specifically, I would like to know whether USM improves sharpness or accutance, and similarly what a good (expensive) lens does vs a cheap lens (not that I'm going to start buying expensive lenses, mind you...)
On a related note, I don't know if anyone has noticed this, but adding a bit of Gaussian Noise to a blurry image tends to sharpen it somewhat. Try it. Then tell me: How does THIS work?