On 12 Apr 2002 at 21:03, Len Zedel wrote:

> Am I to understand then that you can get a digital back for a pentax 645?
> I know that one of my friends has a digital back for one of his medium
> format cameras (mamiya?)

Hi Len,

I beleive that there are no digital backs available for Pentax MF as yet.

> Why isn't a digital back available for one of the K-mount cameras (my
> preferance would be the LX).  A friend of mine recently acquired Nikons
> digital SLR for work, this thing looks like an SLR, even sounds like an
> SLR (I wonder to extend that was marketing).  The only thing about it is
> that the digital sensor is half the size of a 35 mm frame and so everthing
> is half sized in the view finder.  If we could get a full framed digital
> sensor that fit onto the back of a 35 mm camera it seems to me that we
> could have the best of both worlds.

The most fundamental reason is that it wouldn't be economically viable. 
Secondly there are quite difficult technical design considerations, the most 
prevalent of these being that size of the full frame sensor and its associated 
glass protection covers won't allow any lens to achieve infinity focus if it 
were rested on the film rails. There would also be great difficulties in 
interfacing the essentially mechanical shutter with the electronic digital 
imaging system.

Cheers,

Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications.html
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