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Infinity Three Minute Mod for M42 lens
Posted By: kilolani, 02-12-2011, 02:47 PM

Take your basic 300mm m42 mount lens you see here
Name:  300mm F4.jpg
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Size:  44.0 KB

Add one "el cheapo" M42 to PK lens adapter shown here.
Name:  M42 to K Adapter.jpg
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Size:  35.7 KB

Remove the 3 screws from the bottom. Remove one or two of the flange spacers shown here.
Name:  Shims and Screws View 2.jpg
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Size:  81.2 KB

Reassemble the lens. Store the unused flanges in a safe location. Attach the "el cheapo" bayonet adapter. Now use your lens.

Before mod shown here.
Name:  Before Mod.jpg
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Size:  68.2 KB

After mod shown here.
Name:  After Mod.jpg
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Size:  82.5 KB

Now you have infinity and beyond on your oldie but goodie Takumar lens. Total time about three minutes and its totally reverseable.

Views: 6,168
02-15-2011, 05:07 PM   #2
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Ahh, man, you just blew the market for cheap adapters. Now everyone knows.

I suppse you're also gonna add that the lens can be made to lock normally AND that it covers the lens mount contacts so catch-in-focus is possible if you remove a little paint, huh?.


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