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10-25-2012, 03:47 PM   #31
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QuoteOriginally posted by desertscape Quote
The 1000mm Reflex lens at $777 is a steal, especially since it appears to be mint. If I didn't already have long lenses for my 6x7, I would be interested in it.
Let me help you out for a justifiable reason. You gotta get it so you can finish your review of that lens!

10-25-2012, 05:24 PM   #32
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True, true!

I would love to try it out on birds.
10-27-2012, 02:17 PM   #33
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Does anybody know if the image circle of the 67 lenses will cover 6 by 9?
I am making some lens boards for my Speed Graphic and maybe I will try a Pentax lens using the rear shutter.
I see the register is 84.95 mm , that should be OK.
Thanks
10-28-2012, 10:59 AM   #34
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A test of the 45mm, 150 and 200mm shows that they will go bigger than 55 X 70 mm. It looks like 80mm on the long end but each lens is a bit different. I'm sure that a few lenses will cover the 6x9 frame, however, you must consider that the designer needed to cover a smaller frame. When trying to cover a 6x9, you are using the lens at higher degrees of obliquity and therefore the transverse aberrations (coma, lateral color, astigmatism, curvature of field and distortion) will be exaggerated. I'm betting that the corners will be soft. The only P67 lens designed for high degrees of obliquity use is the 75mm shift. You will notice that its cross section is much more complicated than the 75 Takumar. They needed to better correct the transverse aberrations. The 75 shift may be a candidate for you but I'm not sure it will cover 6x9.


Last edited by desertscape; 10-28-2012 at 11:05 AM.
10-28-2012, 12:24 PM   #35
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DesertScape,
Gracias,
I see the 6 by 9 active area is actually 56 by 87 (1.55) , however the Ilford multigrade paper is 203 by 254 (1.25)
So far I have been enlarging to fit the 87W on to the 254W with a little border on the sides and a big border on the height.
However i can ( or probably should be, to fit store bought mats ) cropping in the enlarger to fit the 56 H in the 203 H of the paper.
Then I will only be using 70 mm Width of the neg .

I am looking to bid on a lower cost Pentax 67 1:4 135 mm Macro just to try it in comparison to the Optar f/4.7 135 mm, on some Fuji iso 400 color neg.
Thanks for info on the wide angles. First I am making an aluminum lens board for my 90 mm Rodagon to try, as the 135mm to a bit too long on 6by9 for my street and house photos.
6 by 9, Wollensak Optar 135 mm
https://www.box.com/s/xvs1aqjxnm70ogh34xp8

Pentax MX 35 mm, with Rikenon 1:1.4 50 mm
https://www.box.com/s/eknh47tirp7zqb5p6hpm

Both these are scans of the paper prints ( Ilford Multigrade and HP5+, IE 400)
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