hobby #177

Telescope Eyepiece Modification

Modifying and customizing telescope eyepieces: disassembly, cleaning optical elements, swapping field stops, adjusting eye relief, adding custom aperture stops, upgrading coatings, building custom Barlow doublets from surplus lens elements.

Jun 27 2:55 AM #177 4 min

Seven Tenths Where One Focal Length Should Be

Telescope Eyepiece Modification

One of the $15 estate sale eyepieces was rattling. By 2:47 AM I'd disassembled five of them and couldn't stop.

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