Re: Phaco for Nikon SE? 20x oculars?


"Kevin Cunningham" <smskjc@xxxxxxxxxxxxxx> wrote in message
news:195b4694-24ef-469a-959b-fe58ca533d2b@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Mar 20, 5:15 pm, "Pincopallino" <pincopall...@xxxxxxxxxxxxxxxx>
wrote:
Its not the 160 mm part, its the physical length of the objective.
Older Nikon and Olympus objectives were built to a length standard
much shorter than the one specified by the DIN. If you mix the two
you will, at some point, ram a modern objective through your slide,

Well... it's just a matter of being careful. I would not consider it a
big
problem as I'm the only user of the mic (and an occasional one).

Then you have correction length problems,

That's may be the real problem if it affects significantly the quality
of
the image.

Well, were talking about a Nikon SC as the starting point so that
isn't that hard to beat. However any DIN standard objective you get
will be slightly degraded by the over or under correction of various
factors. It just won't work well. Plus there are not a lot of trust
worthy sellers of used 100X objectives out there.

Thanks,

Kevin Cunningham
SMS


Kevin,

This has been a long and very interesting thread. I apologize if I am
asking a possibly repetitive question which is:

If one considers a scope of a given make, designed wtih a tube length
of 160 mm, would then not any objective designed to work with a tube
length of 160mm work perfectly well, provided it is matched by
its proper eyepiece?

Thank you for clarifying this point.

GR.

.

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