Rodagon 28 reverse mounting suggestion?

liuto · Post by **liuto** » Thu Mar 25, 2010 3:22 am

I have recently purchased a Rodagon 4/28mm lens. It has no filter thread so reverse mounting is not easily possible. Do you have any suggestion of how to achive this?
Thanks
Hermann

augusthouse · Post by **augusthouse** » Thu Mar 25, 2010 3:56 am

Hermann,

Is your lense a Rodagon Macro or a Rodagon enlarger lense?

Do you have a picture of the 4/28mm?

Craig

liuto · Post by **liuto** » Thu Mar 25, 2010 4:20 am

Thanks for the quick response.

It's an enlarging lens:

It has an m39 thread on the rear side but due to the recessed front element the working distance is minimal hence the wish to reverse the lens...

Hermann

mgoodm3 · Post by **mgoodm3** » Thu Mar 25, 2010 9:06 am

No threads makes it much harder to reverse - glue it to a ring, use rubber bands to hold it to a ring.

The short focal length enlarging lenses tend to work quite a bit better reversed than normally mounted - much more dramatically so than longer focal length ones.

I have a couple of Schneider 28's. Both are extremely good lenses and perform very nearly as well as short focal length bellows lenses. One has 40.5 mm threads and one has 30.5 mm threads. Step-up rings are available for both for reversal.