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GY-HD 100 & 200 series ProHD HDV camcorders & decks.


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Old October 11th, 2005, 07:04 PM   #1
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Shaprness on HD100U

Anyone know where to find the shaprness mode in HD100U? I have cheked the menu and can't find it.
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Old October 11th, 2005, 08:35 PM   #2
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its called "detail"
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Old October 11th, 2005, 10:21 PM   #3
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Here's a TIF of my resolution tests using the detail control on MIN, NORMAL and MAX. I should have tried OFF as well, but I didn't realize it existed until I reread the manual.

http://homepage.mac.com/timdashwood/..._Rez_tests.tif
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Old October 11th, 2005, 10:47 PM   #4
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T. Dashwwod,

What are your thoughts on why the f2 detail max has less resolution than the f1.4 or f2.8 detail max?
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Old October 12th, 2005, 12:18 AM   #5
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Quote:
Originally Posted by Stephen L. Noe
T. Dashwwod,

What are your thoughts on why the f2 detail max has less resolution than the f1.4 or f2.8 detail max?
I think it is just a compression artifact. It doesn't really make sense otherwise.

I think 2.8 is the sweetest spot on the lens in conjunction with the size of CCD and density of pixels. It is just as well considering we all want short DOF on these little chips.
I think diffraction might already be taking effect at 4~5.6. If I had a colour printer I would print the chart in Red, green, and blue and then compare diffraction limits for the different wavelengths.
The math doesn't match my results, but I would expect sharp shooting at any opening from 2 to 5.6 or maybe even 8.

Here's an interesting article that deals with the math of Airy discs, diffraction, and 1/3" HD chips.
http://www.tvtechnology.com/features...08.17.05.shtml
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