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Author Topic: RZ Lenses and MFDBs  (Read 571 times)


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RZ Lenses and MFDBs
« on: July 23, 2013, 01:47:02 AM »

Hi all,

With a little luck selling some Nikon gear, I'm getting closer to getting a Leaf Aptus II 7 back.  I may get the DF+ kit, may not...on the fence.  I will definitely be using it on my RZ67 ProII, thus my questions....

I understand using, for example, a Mamiya 110 f2.8 on the RZ67 with film gives approx the equivalent of 55mm on 35mm.  I'm thinking the same may not be true when used with a "crop" MFDB sensor such as the Leaf II 7 (48x36).  Am I correct? If so, what is the conversion?

Thanks in advance for any replies!

Doug Peterson

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Re: RZ Lenses and MFDBs
« Reply #1 on: July 23, 2013, 05:43:18 AM »

Here is a focal length visualizer which allows you to compare the image produced with either a 35mm camera or an RZ with film.

Given the three aspect ratios (6:7, 3:2, 4:3) there is no single "correct" answer to what the equivalent will be as it matters a lot whether you are matching the vertical or horizontal.

If you're working with a value added dealer you could do a test shoot with such a back before making your decision (note this is a biased suggestion as we are such a dealer). There is no substitute to actually trying it in image making.
DOUG PETERSON (, Digital Transitions
Dealer for Phase One, Mamiya Leaf, Arca-Swiss, Cambo, Profoto
Office: 877.367.8537
Cell: 740.707.2183
Phase One IQ250 FAQ

marcel b

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Re: RZ Lenses and MFDBs
« Reply #2 on: July 23, 2013, 05:45:31 AM »

without doing any calculations, my experience was, that I switched one lense wider - so I used the 90 for what was my 110 before, the 65 for the 90,... and sold my 250 ;-)

If you need some stuff, I still got the 90, 65 and 180, one RZ ProII Body + Winder, 2 Filmmags, release cable and the original Leaf adapter from H to RZ (incl. screen and cables) for sale.

billaudet photography
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