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Author Topic: Shift Lens for Mamiya 645  (Read 9398 times)
BobDavid
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« Reply #20 on: January 08, 2007, 05:26:04 PM »
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I've worked with the Hartblei 45mm Super Rotator and just got a Mamiya 50mm shift lens today. I've run a series of tests (taking two photos and stitching them in PS photomerge) with both lenses. The tests were conducted on a Mamiya 645 AFD/Imacon 384C, with the camera mounted on a Novoflex Castel-L rack to keep the lens(s) in the same position to prevent parrallax distortion. So, essentially, the camera and shift lens functions as a back shift on a view camera.

My observations:

1. The Mamiya lens is sharper, both at the center and at the edges, more contrasty than the Hartblei, and the color is consistent with other Mamiya lenses, both AF and manual.

2. The Mamiya has a greater shift range -- 16mm vs. 12mm.

3. The Hartblei tilts whereas the Mamiya doesn't.

4. The Mamiya lens has a scale that shows how far the lens is shifted, whereas the Hartblei does not.

5. The Mamiya lens is lighter and easier to use.

6. It's very combersome using the tilt when taking a left and then a right shift photo for panoramas on the Hartblei, as you've got to completely rotate the lens to shift to the opposing side. The tilt has to be reversed also and to further complicate matters, the tilt knob does not have any markings. The Mamiya also requires rotation to shift to the opposing side, althought it does not have a tilt function.

7. The Hartblei is fine for single frame captures where PC and tilt focus adjustments are required.
« Last Edit: January 08, 2007, 05:30:59 PM by BobDavid » Logged
Leonardo Barreto
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« Reply #21 on: January 08, 2007, 08:29:34 PM »
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http://www.pauck.de/marco/photo/stuff/kiev...ev_fisheye.html


There is an interesting article on an exotic lens that fits the 645, the 3.5/30 mm Fisheye Kiev/Zodiak/Arsat.


It seams to be a reasonably sharp lens designed for 6x6 cold war fighter jets and it is a non-circular fish eye.

It could be interesting to have in the camera bag (or Pelican case) and shoot first and de-fisheye digitally later.


I may try getting one of this here in the city to see if it has the wright stuff of CCCP..
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rueyloon
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« Reply #22 on: January 08, 2007, 09:07:42 PM »
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I have the 24mm Mamiya fisheye on the kodak pro back. The final image after de-fish is about 20mm. Definately wider than my 24mm on canon.
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Leonardo Barreto
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« Reply #23 on: January 09, 2007, 07:34:36 AM »
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rueylon:


I wonder if the de-eyed image is as good as that of a non fisheye one. The lens I'm considering is so inexpensive that it is worth getting it and test it after. I think that it could be used along side a 35mm and 45mm.


I don't know if having a Mamiya Shift 50mm is useful considering that with the P25 is only about 30mm (35mm equiv.) but since it can also be found for about $600 it is on my wish list...

The other one is the Mamiya 28mm  http://www.mamiya.com/assets/pdfs/645AFDII/lens_28_img.jpg

due -- I hope -- this year.
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The important thing is not to stop questioning---Albert Einstein.
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