Re: Pre-order: Fujifilm GFX 50S Medium Format body ($6,499)
The Leica R 28mm f2.8 Super Angulon PC lens (Schneider PC lens) will cover the format of the new Fujifilm camera but will only cover about 5mm of rise and 4mm of shift in the landscape orientation with the lens at f11. The lens will require that Cambo modify the Leica R lens adapter however they now now what is required for such modification Cambo in the Netherlands modified my Adapter at no charge).
Steve Spencer wrote: Lee Saxon wrote:
Steve, thanks for explaining that, I definitely misunderstood what Brad was saying. So if I'm understanding you and the stats on Rodenstock's website, "flange focal length at infinity" - "flange to lens end" has to be > GFX flange depth to work (at least with normal range of movement) at infinity?
You should still be able to use these lenses at closer distances though, shouldn't you? Brad's posting landscapes so I'm guessing that's not helpful to him, but it would be to me.
Yes, Lee you should be able to use the lenses at closer distance but we don't know how close yet. For example, if you want to use the Rodenstock 35 f/4 HR Digaron-S you will need to move it 2mm forward from infinity focus to get it out of the camera body, but you probably still won't be able to get it that close with any bellows system (see point 2 above). We will have to wait until Cambo and perhaps others (Horseman has a deeply recessed lens board that might get there or close with their 4 X 5 view cameras) are able to do with their bellows systems. With the Cambo mini every system (except the MK I Sony's with the special AC310 bellows that Brad mentioned) needed between 10 and 15mm extra from the camera mount to where the back of the lens sat. So, for the 35 Digaron, you might well need 2mm to get it out of the body and another 12mm to make room for the bellows, and I don't know how close focus that would be with a 35mm lens, but I am guessing awfully close. I think Cambo might be able to bring that down a fair bit, but they might instead offer lenses that will work. They have their Actar series of lens and they have a 24, 60, 80, 90 and 120. The 24 only has a 60mm image circle, but that will cover the sensor even if it only has limited movement, and I suspect it wouldn't be too hard for them to do a 35mm to help with the wide angle need and if it cover 70mm it will serve very well (the Digaron-S lenses only cover 70mm). The bottom line is that lens wider than 60mm or so will be challenging, but in a year or maybe too I think we will have some great options. I know I have already ordered the Rodentstock 100 f/4 Digaron-S, which looks to be a fantastic lens, and I like will get the 60 f/4 Digaron-S as well. If I can get a good 30-35mm (I would be happy with the 35 f/4 Digaron-S and probably a Cambo 35mm Actar if they make one), then I would have what I want.
Hi Steve,
What appears to be disappointing regarding the Cambo Actar lenses is I believe that they have all be designed with a 5 iris aperture blade Iris unless I am mistaken. If I cam correct from what I have seen then we are at the mercy of the 5 blade apertures creating 5 sided openings and also 10 pointed Sunstars.
Also, I was shocked when I recently received my Sinar Sinaron digital 150mm f5.6 (Rodenstock 150mm f5.6 Apo Digitar lens) mounted in an older 5 Iris Aperture Blade Copal 0 shutter. I had previously purchased lenses that I had including my SK 120mm f5.6 Makro Symmar lens (and other SK lenses) that I purchased about 23 years ago that had the later 7 Iris Aperture Blade Copal 0 shuter, It is shocking that Sinar and Rodenstock were using the older 5 Iris Aperture blade shitters so much longer than SK. I solved this problem by purchasing an SK 150mm f5.6 Xenar lens and both the Sinaron and the Xenar lenses to SK Grimes in RI and they switched the shutters and my Sinaron lens is now in the much preferred 7 Iris Aperture Blade Shutter.
Rich
Feb 01, 2017 at 08:29 AM
Previous versions of naturephoto1's message #13902844 « Pre-order: Fujifilm GFX 50S Medium Format body ($6,499) »
