Hi, I have a chance to purchase a used mint Schneider APO Symar lens thats is 210mm . Q1) In B&H catalogue it states that this lens is optimal from 1:10 to infinity. I will be shooting 1:1, tabletop shots, lanscape, close up. This is a really good lens, but might I do better with the Rodenstock Siranon-N , or the Rodenstock Siranon-S???? Q2) I've shot with a 150mm lens only. Two large format, ( 4x5 ), people told me they use 210mm over anything else. I was always comfortable with 150mm, and since I can't test the lens without a lensboard, I don't know if I would like 210mm better.( I don't know these people well enough to check out their equipment). I wonder if when I do tabletop shooting in my house how far I will need to get from subject with 210mm. Q3) After much deliberation, I will be purchasing an Arca Swiss Discovery. That is, if its right for me when I go to B&H and check it out in person. Yes, I hav e a feeling it will be very right. But I have checked out a few that I thought w ould be the one for me and they weren't. The Discovery has a monorail of 11.9". I can't afford a longer monorail or exte ntion at this time since the price of Arca Swiss componants are so hefty. When doing 1:1 with a 150mm, I know that the bellows need to be extended 12", and lens to subject 12".I can't remember bellows extention factor, so with a 210 mm, what would be the factor, more or less than 12"? This might sound easy, but I'm dislexic, ( I don't know how to spell it, can't find the dictionary ), with numbers, which makes it challanging to be in this fi eld. Any advice would be appreciated. Thanks, Raven P.S., I know that 11.9" monorail will not get me 1:1, but this is fine. I'm not doing this for a job, but for myself, so just getting close up is what I nee d.
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