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Canon FD Flange

by mcneight, published

Canon FD Flange by mcneight Mar 9, 2011
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Summary

Accepting the challenge thrown down by Ethan at http://blog.makerbot.com/2011/03/09/pinhole-lens-for-nikon-by-xjcrawler01-and-a-wee-challenge/.

Actually, this is something I've been working on for a little while. I just wasn't going to post it until it was really finished. Printing on the powder printer at http://metrixcreatespace.com resulted in an inner diameter that was a hair too small to fit around the Canon 50mm lens I have.

The important measurement in this flange is the height. Placing this on a lens, your focal length will be 42mm from the bottom of the flange to the imaging surface (42.14mm if you measure to the back of a piece of 35mm camera film).

Instructions

NOTE: When using the original SketchUp file, I had to scale everything up by 10 because it doesn't handle small measurements (< 0.1mm) at all. Where you see an inner diameter of 480.0mm, in real life this should be 48.0mm. After exporting, scaling down by a factor of 10 will result in proper measurements.

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This is rad -- thanks for working on it.

I REALLY like this. :)

I hope to be able to print and test it soon. Maybe design my own adapter for an m4/3 to use FD -lenses or something.

At least a proper cap to store FD-lenses while not in use should come from this.

Can SketchUp export any other formats too?

I designed an improved one from scratch.

http://www.thingiverse.com/thing:7056http://www.thingiverse.com/thi...

Exported into a number of formats for others to improve on.

Canon FD Flange
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