For anyone wondering as I could not find anyone who had used this lens for film digitising.
Without an extension tube the lens provides excellent detail, almost filling the height of the sensor with around 10-15% of the sensor unused. With an 18mm extension tube, 645, 6x6 and 6x7 all fit the sensor fully.
Attached is a test target of the 110 f5.6 + 18mm extension tube. I can not see any optical shortcomings with this setup.
A GFX should match 645 perfectly, they both have a 3x4 aspect ratio - as does any micro four thirds camera.
I am referring to the minimum focus distance of the lens
Yes, sure, and there is no contradiction. At MFD, the lens has a max. magnification of 0.5, which means that an object of 87.6 x 65.8 mm should fill the frame. There is some slack in these figures, technical data can be nominal at times, but let’s take them at face value for now.
The usual 120 film formats have the following dimensions which make them fit the GFX combo without having to cut parts of the negative … which means that some sensor pixels aren’t used for the actual photo, but for its surroundings.
With MCEX 18G, magnification goes to 0.7 and object size to 62.6 x 47 mm which fits 645 format negatives at MFD. Other formats can be made to fit.
These things considered, you got yourself some nice gear and you could - if necessary - add some shift to eliminate reflections. With lens data printed around the front tube, reflections should be minimal though.
Source of tech data: Home Page | FUJIFILM X Series & GFX - USA
I’m not sure that I’ve ever seen anyone post the results from the 120 target and I don’t have one so it’s hard to interpret it. Looks like Group 0 Element 3 in those two corners but it’s a little hard to see, is it the same or better in the centre? If you already have one of those lenses, as you do, then it looks like a good performer. It’s designed to go down to 0.5x without extension tubes and since it’s a shift lens you are using the centre of a larger image circle.
Vlad’s 120 target equates to 43 lp/mm for Group 0 Element 6.
