>take a 50mm f.75 x-ray lens >Mill out outer casing to

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>take a 50mm f.75 x-ray lens
>Mill out outer casing to creat a rudimentary zoom mechanism
>Dismantle lens and ad aperture diaphragm
>Grind down, or replace rear element to change flange distance to allow for infinite zoom

Why shouldn't I do this?

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