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View Full Version : 20D on camera sharpening...


Adam Hicks
20th of September 2004 (Mon), 15:04
For what it's worth, I set the camera on the desk and used timed release and same settings. ISO200 these are crops without otherwise resizing or post editing.

First is camera set to sharpening 0, then 1, then 2. Not a huge difference but I think I'll leave mine on custom with +2 for a while and see if I notice a change.

Adam

http://www.golilm.com/photography/SharpeningTest.jpg

BTW this was with the Tamron 28-75 in the middle of the range. Shallow DoF because it wasn't too bright in here and I didn't want to use a flash for the test.

Morden
20th of September 2004 (Mon), 15:29
There is indeed very little in it. :)

pcasciola
20th of September 2004 (Mon), 16:16
I'm not surprised the online sharpening is weak on the 20D. At 8MP and 5fps, I can't see how they can do it at all. I've always avoided letting a limited CPU on the camera try to do in 1/10th of a second what my 3GHz computer struggles to do in under 5 seconds. Other than JPEG compression, I try not to use any firmware processing on the camera. It's amazing enough to me that they can do JPEG compression that fast.

robertwgross
20th of September 2004 (Mon), 16:31
I'm not surprised the online sharpening is weak on the 20D. At 8MP and 5fps, I can't see how they can do it at all. I've always avoided letting a limited CPU on the camera try to do in 1/10th of a second what my 3GHz computer struggles to do in under 5 seconds. Other than JPEG compression, I try not to use any firmware processing on the camera. It's amazing enough to me that they can do JPEG compression that fast.

The camera can shoot at five frames per second and throw the data into a buffer, but it does not necessarily produce or store five frames of RAW or JPEG in the same second.

From the other standpoint, the camera's processor is highly specialized, and it does not have to do all of the many things that your computer's processor can do.

---Bob Gross---

Adam Hicks
20th of September 2004 (Mon), 18:46
That's a good point. My old $2500 laptop couldn't play DVD movies nearly as smoothly as a $50 DVD player. It's all in specialized processor and ASIC design.

Adam