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56 meg, 36X56 Leaf back with rotating sensor


Active Member
Well, it's getting closer. Not a square, but a full 56 wide!!!!

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If Leaf offers the Leaf Aptus10 digital back separately, it'll solve the 6X6 fixed mount. Goes from Landscape to portrait with a flip of a switch.

Nothing out there is this wide, not even the Phase One 60 meg. Believe me, 4 meg will not make any difference what-so-ever.


New Member
It used to be horsepower and processor speed.
Now the race for bigger sensors has started.
Phase One and Leaf are at it already who will be next?


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If a 36x56 sensor is possible and might soon be available , a 56x56 sensor will be possible too . If it makes sense or not to produce such a sensor , is an other question . But I am almost shure , that the Sinar Hy6 will have it soon .

The journey goes on . (this was a HASSELBLAD slogan)
Hopefully , the journey goes on . What we need is competition . Only that will get the prices down .
I'm surprised that no one has yet to bring up an important issue here, and that is that, simply put, the 36x56 back is still not a full size 645 sensor, and will probably NOT be embraced by the commercial photographers who can actually afford one. And this, of course, is presuming that the sensor's true measurements are actually 36x56mm.
My reason being that the 36x56 back is SHORT on the 36mm side, yielding a 2:3 image ratio, rather than the preferred 3:4 ratio used by so many commercial & portrait studios. And if you crop the 36x56 back to a 3:4 ratio, you're back to a 36x48 again.
Landscape photographers would certainly embrace it, as 2:3 horizontal images have so much eye appeal. But then again, how many landscape photographers will be able to afford it? Maybe George Lepp, if he ever tires of Canon's endless support and endorsements.
In the end, I think these manufacturers figured out that it is easier, from a production-cost point of view to take a 36x48 sensor, and stretch it out to 56mm on the long side, but that stretching it in both directions, say to a 42x56 (which is what is needed for a true 3:4 image ratio), is proving to be a lot more difficult. I don't see that we're any closer to a 56x56 square back, and I'm not sure that there would be much demand for it, even if the technology were in place.
When it comes to rectangle images, I prefer the 2:3 ratio for horizontal images, but prefer the 3:4 ratio for verticals. A square image certainly eliminates all these issues, decisions, and choices about rectangle ratios, and whether to shoot horizontal or vertical.
I mean, after all, there's only ONE square ratio!!


New Member
Patience Michael, patience.

I am sure companies are working on larger sensors now.

What we have now as high grade sensors will take many jobs that once were done with 4"x 5" cameras.

Largers sensors will eventually make 8"x 10" cameras obsolete especially if the adustments of TCs become available for these digital cameras.


New Member
"I am sure companies are working on larger sensors now."

Is the issue "developing" large sensors or developing large sensors that are affordable. Are there large sensors being produced in small numbers for industry and government? Is the current size limit, physics or finance?



New Member
Making larger sensors is not a problem although the price will go up progressively.

Larger sensors need more power and more storage capacity.
The trend is towards smaller pixels again meaning more pixels for the same area.

Finally more expensive digital backs will mean reduced sales.
All extra costs have to be regained from a smaller production run increasing the price even more.

The conclusion is simple: digital developments depend more on economics than on engineering.
Strange coincidence that the word photography is not even mentioned once here.


I don't get why it's not easy to make a larger sensor with less pixel density. 6x6 10mp back. Can someone explain? Thanks.


New Member
It's probably possible, but who would pay 40k $ for a 10mp back today?

With a 56*56 sensor You could easy do 20mp and still get enormous DR.

What I'm hoping for is a price drop, it is simply too expensive today with DMFB.


New Member
Usually a price drop follows the moment of return on investment.
With small numbers sold that moment will not be very soon.

It will take 3-5 years before a substantial price reduction can be expected for
backs with larger sensors.


To my point of view, The price of the H-31 drop 50% in about a year. So not so bad.

As the digital 24x36mm reach the diffraction limit (about 20Mpix) the digital war will perhaps begin in MF field.


New Member

I've been closely following the development of digital photography technology since I bought my first digital camera, a Canon 10D.
Currently I own my third dslr (5D) and just bought a G10 for fun. I believe "digital 35mm" has met some limits related directly to its physical size. This is the time now for bigger digital formats to show if they are worth what they cost.
Luckily for me and hundreds of photographers across the universe, dmf backs are finally starting to come out cheaper. The used market is already plagued with real bargain offers. On the down side, digital mf backs are like wild horses and buying used from unknown people makes it scary to say the least. Maybe 2009 or the start of the second decade of the new millenium will get us (photographers of the world) to a new era in medium format photography. I can't hardly wait!

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Thanks fotografz
The sensor size did not reach even the smallest size of MF, although covering power of the lenses came with a diameter of 56mm. Also the price is really unapproachable.
I think the next step will be a sensor area of 56X41mm, and 63MP @ the same pixel size; or who knows 56X48mm sensor area. They will not waist that COOL covering power in this HOT digital race.