T-thread Extenders
These are 1/2" and 1" T-thread extenders used on telescopes and cameras. They allow course adjustment of back focus for a camera when used on a telescope.
T-thread ExtendersThese are 1/2" and 1" T-thread extenders used on telescopes and cameras. They allow course adjustment of back focus for a camera when used on a telescope. |
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| Top view. | Bottom view. |
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