Bellows on 10D using Contax lenses!

Jytzel,

I use the S-Planar 60/2.8 on a D30 with a simple adapter. This is the
same optical design as your lens. Yes, there is a Contax brand bellows
with shift, and also tilt. Ignoring the camera, I see two problems:
lens clearance, and image circle.

By lens clearance, I mean the distance between the lens flange and the
camera-side bellows flange. This distance must encompass the bellows
itself and the mounting apparatus on both its ends. Now, the SP60 has
no floating elements, which is good for bellows use. Less ideal is the
physical extension of its single optical cell of 62mm from infinity focus
to the 1:1 position. Even if the bellows assembly can fit within 62mm,
there will be very little room for fun, especially tilt. Plus, you will
be constricted to the near-macro end of the range.

Except for the PC-Distagon, I expect the image circle for most C/Y
lenses, including the SP60, to be extremely tight. This is for reasons
of economy, and lens weight. There will, therefore, be little enjoyment
of shift movement. As mentioned early, tilt is also a problem for
clearance reasons.

Based only on eBay pictures of the Contax bellows, that's my gloomy
assessment. Frankly, the Zörk route seems more plausible. Besides the
cool hardware, you will get a proper lens for the purpose - one with a
full range of focus distance, and a generous image circle.

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Jytzel,

I use the S-Planar 60/2.8 on a D30 with a simple adapter. This is the
same optical design as your lens. Yes, there is a Contax brand bellows
with shift, and also tilt. Ignoring the camera, I see two problems:
lens clearance, and image circle.

By lens clearance, I mean the distance between the lens flange and the
camera-side bellows flange. This distance must encompass the bellows
itself and the mounting apparatus on both its ends. Now, the SP60 has
no floating elements, which is good for bellows use. Less ideal is the
physical extension of its single optical cell of 62mm from infinity focus
to the 1:1 position. Even if the bellows assembly can fit within 62mm,
there will be very little room for fun, especially tilt. Plus, you will
be constricted to the near-macro end of the range.

Except for the PC-Distagon, I expect the image circle for most C/Y
lenses, including the SP60, to be extremely tight. This is for reasons
of economy, and lens weight. There will, therefore, be little enjoyment
of shift movement. As mentioned early, tilt is also a problem for
clearance reasons.

Based only on eBay pictures of the Contax bellows, that's my gloomy
assessment. Frankly, the Zörk route seems more plausible. Besides the
cool hardware, you will get a proper lens for the purpose - one with a
full range of focus distance, and a generous image circle.

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