No, but the amount of enlargement is determined by the size of the
sensor.

Its now sounding as though enlargement isnt the main deciding factor in
DOF, which goes against what I have been repeatedly told in the past.
But then why does changing the format change the COC in fcalc?

This is VERY confusing...

> -----Original Message-----
> From: Mike Johnston [mailto:[EMAIL PROTECTED]] 
> Sent: 28 November 2002 15:20
> To: [EMAIL PROTECTED]
> Subject: RE: DOF in DSLRs - HELP ME PLEASE...
> 
> 
> > Yeah, but presumably they also use the film format?  I know fcalc 
> > prompts asking what format you want the COC for.  Changing 
> this from 
> > 35mm to APS (roughly what a DSLR does) reduced the DOF as a larger 
> > magnification would be required to compensate at the 
> enlarging stage. 
> > Increasing your distance to subject presumably cancels this 
> out so I 
> > would expect you to end up with the same DOF for the same framing 
> > within the format used.
> 
> But size is not determined by the size of the sensor in 
> digital. Rather, the number of pixels determines the image size.
> 
> --Mike
> 
> 
> 
> 
> 
> "You never know when the shot of a lifetime will appear 
> before you. You do have a say in what kind of film is in your 
> camera when it happens." (Mark Roberts)
> 
> * * *
> Find out about Mike Johnston's unique photography newsletter, 
> "The 37th Frame," at http://www.37thframe.com.
> 
> 
> 
> 

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