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#11
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question about mf aspect ratio
Bill Mcdonald wrote:
Thanks guys for all the responses!As I said, I am truly a medium format newbie, but hopefully I'll learn fast! I apologize for what probably was the dumbest question ever posed here. And I'm especially grateful for the cropping advice. I forgot how HUGE the negative is! Not dumb at all. The trick is thinking/visualising the crop while shooting. Many 6X6 focus screen have grid lines to help do this. As I said in another post, you can frame the scene in the upper portion of the frame and slightly correct for converging verticles etc. I've shot all of the formats and 6x6 is still my favorite. -- Stacey |
#12
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question about mf aspect ratio
That was absolutely, positively, and without a doubt, NOT the dumbest
posting on usenet... Not even close, no way... Actually, it was not a bad question, even if I did tweek your chain a bit... I have noticed over the years that those who start in photography with rectangular formats, initially have a blind spot about square format... I print in both square and rectangular format, depending upon the picture... I use 11x14 paper to print 10x10, or thereabouts... What I do is trim the paper before printing to 11x11... The 3 inch pieces are tossed back into the paper safe and used for test strips... Seems like I never have enough test strips... Keep posting and let us know how it's going... denny denny "Bill Mcdonald" wrote in I apologize for what probably was the dumbest question ever posed here. |
#13
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question about mf aspect ratio
Mark A wrote:
... 6x7 - 69.5mm x 56mm Europeran cameras (Linhof, Sinar) are usually 72x56, Americans are 69.5x56 and Pentax 67 is 68x56. 6x9 - 89.5mm x 56mm More commonly about 84x56. Makes the aspect ratio exactly 3:2. -- Lassi |
#14
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question about mf aspect ratio
6x7 - 69.5mm x 56mm
Europeran cameras (Linhof, Sinar) are usually 72x56, Americans are 69.5x56 and Pentax 67 is 68x56. Yes the 120 film backs for view cameras vary quite a bit, but I don't really consider them to be MF cameras. There is very little variation in format size of true MF cameras. There are no MF cameras made in the US that I am aware of. Most are made in Japan and a few Europe. You are incorrect about the Pentax 6x7. It is 56mm x 70mm. Trust me, I have owned one for the last 20 years. The size does vary very slightly (and I emphasis VERY SLIGHTLY) depending on which lens and which aperture is used. http://www.pentaxusa.com/products/ca...roductID=10291 6x9 - 89.5mm x 56mm More commonly about 84x56. Makes the aspect ratio exactly 3:2. -- Lassi Same comments I made above. You are talking about 120 film backs for LF cameras. I am talking about true MF cameras like the Fuji 6x9. BTW, check out the specs on the Schneider 100mm f/5.6 enlarging lens which they claim covers the 6x9 format. On page 2 of the MTF charts they state the exact format coverage as 56mm x 79mm. I believe that Schneider is a European company. http://www.schneideroptics.com/photo...n-s_56_100.pdf |
#15
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question about mf aspect ratio
"Lassi Hippeläinen" wrote in message .. . Mark A wrote: ... 6x7 - 69.5mm x 56mm Europeran cameras (Linhof, Sinar) are usually 72x56, Americans are 69.5x56 and Pentax 67 is 68x56. 6x9 - 89.5mm x 56mm More commonly about 84x56. Makes the aspect ratio exactly 3:2. True. There is no fast rule. I have two Veriwides, a Plaubel and Brooks, each with different "6x9" dimensions on the "9" side. |
#16
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question about mf aspect ratio
"Mark A" wrote in message ... 6x7 - 69.5mm x 56mm Europeran cameras (Linhof, Sinar) are usually 72x56, Americans are 69.5x56 and Pentax 67 is 68x56. Yes the 120 film backs for view cameras vary quite a bit, but I don't really consider them to be MF cameras. [...] Which gives me an excuse to rave about the 'real' MF folding cameras of yesteryear that had front rise and drift. God I wish I could put a _good_ 120 back on one. |
#17
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question about mf aspect ratio
Mark A wrote:
6x7 - 69.5mm x 56mm Europeran cameras (Linhof, Sinar) are usually 72x56, Americans are 69.5x56 and Pentax 67 is 68x56. Yes the 120 film backs for view cameras vary quite a bit, but I don't really consider them to be MF cameras. There is very little variation in format size of true MF cameras. There are no MF cameras made in the US that I am aware of. Most are made in Japan and a few Europe. For me MF is pretty much equivalent to roll film. With limits... 6x17 just doesn't sound like MF anymore. You are incorrect about the Pentax 6x7. It is 56mm x 70mm. Trust me, I have owned one for the last 20 years. The size does vary very slightly (and I emphasis VERY SLIGHTLY) depending on which lens and which aperture is used. http://www.pentaxusa.com/products/ca...roductID=10291 In that case I've been misinformed. I don't own one :-( 6x9 - 89.5mm x 56mm More commonly about 84x56. Makes the aspect ratio exactly 3:2. -- Lassi Same comments I made above. You are talking about 120 film backs for LF cameras. I am talking about true MF cameras like the Fuji 6x9. No. My Moscow 2 folder scans are 57x85, when the whole frame is covered, but only about 55x83 is clean. The edges of the bellows shade the corners a little. Since the Moscow is a Zeiss Super-Ikonta copy, the size is also copied from German practises. AFAIK also box cameras are about that size. BTW, check out the specs on the Schneider 100mm f/5.6 enlarging lens which they claim covers the 6x9 format. On page 2 of the MTF charts they state the exact format coverage as 56mm x 79mm. I believe that Schneider is a European company. http://www.schneideroptics.com/photo...n-s_56_100.pdf German, located in Kreutznach. Their 6x9 is even smaller than mine... -- Lassi |
#18
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question about mf aspect ratio
Hi Bill, just for fun, see the Square* Format page http://medfmt.8k.com/mf/square.html see http://medfmt.8k.com/mf/formats.html for various format spec's grins bobm *also "Diamond" shots - squares on edge ;-) -- ************************************************** ********************* * Robert Monaghan POB 752182 Southern Methodist Univ. Dallas Tx 75275 * ********************Standard Disclaimers Apply************************* |
#20
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question about mf aspect ratio
"Bill Mcdonald" wrote in message ... On 11 Feb 2004 16:44:54 -0600, (Bob Monaghan) wrote: Great articles. I really have learned a lot from the responders to my question. I realize that I am the typical 35 mm shooter who moves to the square format and hits a wall, and tries to convert the new format to 35. I especially look forward to trying out the "diamond" approach. Bill Mcdonald in Joshua Tree P.s. One day I think I may feel that the square format liberated me in my compositions, once I learn to crop afterwards, rather than "in camera" as I do now:-) Cropping in the camera is always better. The square has its own beauty. Learn to use it. http://www.fotografiewimvanvelzen.nl/publication02.htm Lots of good stuff: http://www.fotografiewimvanvelzen.nl....htm#artikelen David J. Littleboy Tokyo, Japan |
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