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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Thinking of it, "definitely" is a bit overstated. I received the Actar-120 in the middle of many other lenses and I had a limited time to try them all. Part of the learning curve was the Actus-G itself. I first tested the Actua-120, and I was expecting to be blown away (as I said), and I found...
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Thanks for the tips. I will check out the Pentax 67! Thanks Claude
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Rob, Thanks for these explanations. They are thorough and clarify a lot. I will use this to organize my research. Per your earlier recommendation, I just bought the Pentax 645 150mm f3.5. $160 at KEH. I dislike KEH very much but the price and condition were right. I'm going to experiment with...
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Rob, I picked the Pentax 645 lenses per the user's ratings from the pentaxforums, which I found really useful. Given your level of expertise, I'm glad we concur on the choice of lenses and I take note of the 150mm f3.5. Regarding the enlarger lenses, I would not be able to dismount the lens and...
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Steve, Thanks for following up. I received 3 Mamiya RZ67 lenses: 50mm ULD f4.5, 110mm f2.8, and 180mm f4.5. I've not been able to control the aperture on the 110mm, even using a mechanical release as indicated by Cambo. Vincent's tip worked with the 50mm and the 180mm. Once set up, these two...
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Thanks Vincent! You are a lifesaver! I just tried that and it works perfectly. Thanks for taking the time to answer. Claude
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Thanks, Steve. Very nice of you. The change of aperture using the ring has no effect until I use the lens lever to stop down. Not very practical. Last night I found a tip provided by the Cambo website: uncock the shutter, then set it to T and open it with a cable release. "After that, it remains...
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    Cambo Actus G with Rodenstock 55mm f/4.5 APO Sironar Digital and Nikon Z. Very soft edges...??

    Steve, After checking your files, I decided to buy the Mamiya 50mm ULD and the Mamiya RB67 lensboard for my Actus-G. Stupid question: how do you change the aperture? My Pentax 645 lensboard has a small contraption to change the lens aperture, but I don't see any similar way to control the...
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