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DPChallenge Forums >> Hardware and Software >> How to get more pixels out of your 20D
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 02/20/2005 01:25:22 PM · #1
I have been playing with RawShooter, see this thread
RawShooter thread
I was astounded when it produce more pixels then the 20D is suppose to have, 16 in width and 10 in height. This is not much but the fact that there were more pixels in the raw file then jpg was still a surprise. This has the effect of making the sensor just a little bit larger and the field of view ever so slightly larger.
The Adobe raw converter does not seem to get to these extra pixels.
 02/20/2005 01:33:12 PM · #2
I think it has something to do with the bayer interpolation for the edges of you pic. Perhaps this program uses those extra pixels.
 02/20/2005 01:33:48 PM · #3
Originally posted by scottwilson:
This has the effect of making the sensor just a little bit larger and the field of view ever so slightly larger.


That's like a .00099 increase in field of view lol.

Message edited by author 2005-02-20 13:34:58.
 02/20/2005 01:42:58 PM · #4
Originally posted by Azrifel:
I think it has something to do with the bayer interpolation for the edges of you pic. Perhaps this program uses those extra pixels.

I could see maybe a difference of 4 for Bayer issues but 16 seems like a lot. Then too there is the fact that you get 16 in the width and only 10 in height.

In a practical term 16 more pixels in width will not have much of an impact, but it was a surprise to see them there.
02/20/2005 02:15:59 PM · #5
When looking at the 20D specifications it has two catagories of pixel counts. One is effective pixels of prox. 8.2 M and the other is total pixels of prox. 8.5 M. Is it possible that raw uses some of those 'untapped' pixels? Also, is it possible that one 20D could be slightly different from another? (the specifications do indicate 'approximate' for the megapixels)

Message edited by author 2005-02-20 14:16:52.
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