Jupiter 9 m42 version only close focus on A7

Started 3 months ago | Questions thread
GnarlydogOZ
GnarlydogOZ Senior Member • Posts: 1,398
Re: Jupiter 9 m42 version only close focus on A7

Tom Caldwell wrote:

It could be that someone thought that they could do something similar with an LTM version of the J-9 by simply screwing on a M42 ring - unfortunately it jammed and the winner is going to be the one who manages to free it.

Now  that it seems we have established it's a M39, one could also carefully use a Dremel tool with a tiny cut-off wheel and cut the adapter ring, to then easily pry it off. It's most likely just soft aluminum that requires very little effort to cut.

Of course, some careful cutting is required and certainly not the task for the inexperienced Dremel user

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