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It's available a digital back for Pentax 645 ?

Gianluca Faletti , Jan 23, 2009; 11:59 a.m.

Hi to all, I need to know if it's available a digital back for Pentax 645. I have some Pentax 67 lenses and with a adaptor I can mount it on on a Pentax 645 body. If it's not available I could buy an lenses adaptor from Pentax 67 to Mamiya 645 and buy a digital back for it (I'm sure that is available). I need some general suggestions about my ideas, and where I can find an used digital back in Europe (also USA). Thank you to all. Bye Gianluca


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Neal Currie , Jan 23, 2009; 03:30 p.m.

Not as of January 2009.

Mike Cecil , Feb 23, 2009; 01:11 p.m.

Digital backs are being sold here (in China) for the 645. The digital back is called Super Image. I know people using this, but I don't know anything technical aside from it being 16 MP. I do not know the size of the sensor.
Local photographers are using it, and would be happy to post pictures of it; and I can try to find more information if anyone is interested.

This is a picture of digital back for pentax 645 being advertised in China

Garry Vogelsang , Feb 23, 2009; 08:11 p.m.

Digi back for the P645 ?
Even at 16MP I'd be interested in knowing more.


S B , Feb 26, 2009; 06:39 p.m.

Can you tell us what brand it is?

W Kato , Mar 04, 2009; 05:37 p.m.

It's not technically a back but better. The bad news is you have to go to Japan to get one. The good news is that it is real.


Mike Cecil , Mar 09, 2009; 12:49 p.m.

I am very happy that Pentax will keep the system alive, as it is the system I use most. I have been buying bodies and lenses to make sure I have my favorite camera in the future even if it is discontinued. I am happy with film-- so I only want Pentax to keep the system alive. And I guess that means digital. It would be very nice if they had a full frame digital back!
However, the "digital backs" being sold in China are not Pentax. A local manufacturer. The Pentax NII is a much more common camera in asia, including China, than in the US. So there is a very large new and second hand market here.
However, I have not been able to actually get one of the backs to try. It could be a complete hoax, but I doubt it. Hoaxes only really work for large volume items like mobile phones.
The digital back may well be total garbage-- I am not trying to advertise. I am told, however, that I need an NII to use the back. That might make sense-- I am not sure just what electronics Pentax added on the NII over the N.
As soon as I find out more, I will post the information here. For those of you who can read Chinese, I am also providing this link:
That should take you to a page where P 645 s are being traded in China.


Mike Cecil , Apr 29, 2009; 01:02 p.m.

I have seen a demo, but not actually used, the China made digital backs for the 645. First they exist, and are local modifications of the 645II. So you need to buy it with the Camera. I asked if the digital back could be removed, and was just asked why I would want to do that. There is also a 32 MP back available; both backs seem to need to be tethered to a computer.
I still do not know the size of the sensor; however the results that I saw (8X10) prints looked fine.
I doubt this setup would be what most of us are looking for. Is it possible that the new Digital 645 will let me use film backs!?

Pål Jensen , Apr 29, 2009; 06:11 p.m.

The Pentax 645 Digital will come next year. It is not only for sale in Japan but will be marketed world-wide. It's target price is below $10.000.
It will have more than 31mp; very likely quite a bit more....

Pål Jensen , Apr 29, 2009; 06:29 p.m.

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