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[OM] Re: YADT, 5D - Dust at various apertures

Subject: [OM] Re: YADT, 5D - Dust at various apertures
From: Wayne S <om4t@xxxxxxxx>
Date: Fri, 14 Apr 2006 17:31:53 -0400
Ok, here is an update of dust correlated with F stop with 5D.
After several cleanings with PecPad wrapped on credit card
cut to size, there were a few spots that refuse to change.
Here are some 100% crops around those spots:

http://www.airsprite.net/5D_dust/dust_32.jpg F32
http://www.airsprite.net/5D_dust/dust_22.jpg F22
http://www.airsprite.net/5D_dust/dust_16.jpg F16
http://www.airsprite.net/5D_dust/dust_11.jpg F11
http://www.airsprite.net/5D_dust/dust_8.jpg  F8
http://www.airsprite.net/5D_dust/dust_5_6.jpg  F5.6

You can see that the spot is evident at F16, starts to disappear
at F11 and nearly invisible at F8. I did not enhance the contrast.

Almost all the spots could be cleaned with PecPad plus
alcohol, except a few.

WayneS


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