On Fri, Sep 29, 2006 at 07:20:24PM -0500, Kevin Bailey wrote:
> Hello,
> I've been a member of this list for a couple of weeks now. I'm on the
> edge of my seat like many others looking at/waiting for all the new
> stuff.
> 
> I believe, I found the link to the youtube K10D video thru a posting
> here (or was it dpreview?)
> 
> re:  http://www.youtube.com/watch?v=_hjKijLOj9s
> 
> Anyway,  during the video, Carlson  pulls out a 6x7 lens, puts in on
> the K10D and shoots away. What is the crop factor for a 6x7 lens (is
> it 4x)?

Crop factor compared to what?
A 300mm 6x7 lens will look the same (through the K10D viewfinder
and to the sensor) as a 300mm K-mount lens.

A 35mm frame is 1.5x the size of the "APS-C" sensor in the K10D.
A frame of 6x7 film is (approximately) 2x the size of a 35mm frame,
which would make it about a 3x crop factor going from 6x7 to a K10D.


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