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In this article we will show how to build a tripod mount for telephoto camera lenses without a factory-installed mount. The lens we will use as our example for our project is the smc Pentax 300mm F4.
Materials
As you can see we do not need anything fancy or expensive:
1 A piece of 1/4"x1" piece of steel cut to length
2 A 2-3/8" galvanized chain link brace band
1 6/32" nut used as a spacer
Two part epoxy that will bond metal
1/4" thumb screw
Paint
Contact Cement
Sheet rubber (you find it in the shelving section of hardware store)