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Re: Lunar Scopes
From: Alexandre Eremenko
Date: 2005 Feb 14, 20:13 -0500
From: Alexandre Eremenko
Date: 2005 Feb 14, 20:13 -0500
Dear Fred, On Mon, 14 Feb 2005, Fred Hebard wrote: > I think Joel intended no insult here. Of course, I know. Still I wanted to oppose in the strongest way that anything I said on this list could be motivated by any "nationalistic feelings", especially Russian ones:-) > I would just as soon not reveal how much I paid for > an inverting scope. Can you reveal whether you really bought a separate scope? I mean without a sextant? > BTW, I believe it is 6x not 7x, according to one manual There is something strange about it: my manual says 6x to 7x, whatever this means. > I've not tried to measure its magnification yet, and don't know how, That's easy: measure the focus distance of the objective lens, then that of the eyepiece, then divide one onto another. > Joel has a good point that the box has the letters, > "SNO-T," on it. It > is natural to then advertise it as a "SNO-T," > so that the buyer is not > confused when he receives a "SNO-T" but had ordered a "SNO-T." I have nothing to add to what I said. What if a buyer orders "Tamaya" and then receives something where the Japanese characters are written instead? > In microscopes, various measuring devices are > inscribed on glass disks Yes, you can inscribe the wires on glass (in a Kepler scope!) but not in a Galileo scope. There is no difference, whether you inscribe them on glass or put actual wires. Except that additional glass will absorb additional light. Alex.