Edmund Optics thinks they're Celestron of the 1980s

Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich

RichA wrote:
Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich
Yes, Peter H

Photonics/Spectra magazine?

No, never heard of it.

"RichA" wrote in message
...
Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich

Edmund is a very good company. They can be expensive, yes, but their
equipment is first class and always backed up by the firm. Several years
ago, due to the outrageous costs of RGB filters, I decided to construct my
own using Edmund dichroic 25 mm filters. I ordered an RGB set of unmounted
dichroics and simply dropped them into 1.25" holders. I compared them
directly with Astronomik and a few other brands. Light transfer from the
Edmund was actually 20% more or equal than all other brands tested and in
none of the tests was it less. I mounted the filters and have been using
them ever since, and saved $200 over Astronomiks. Oh, and the initial
dichroics I received from Edmund were scratched and I had to return them for
another set. No questions asked and my new set arrived without incident.

Back when they were making mirrors and telescopes on a regular basis, their
mirrors always tested as 1/8 wave or better and performed wonderfully in
telescopes. A friend of mine constructed a Dob based on an Edmund custom
made 16" mirror. That was 30 years ago and he still has the Dob and uses it
on a regular basis.

It was tough for a company like Edmund to go head to head against the
biggies like Meade and Celestron, but for many years they held their own and
can receive credit for that. Now, although they still have mirrors, they
have added a huge assortment of other goodies to their stock and some
components can really be a bargain for the amateur who is a DIY type.

Rich S

"RichA" wrote in message ...
Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich

never heard of that magazine. and why is this important?

On Wed, 8 Jun 2005 15:51:54 +0200, "md" not given to avoid spam
wrote:


"RichA" wrote in message ...
Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich

never heard of that magazine. and why is this important?


It's not, and most people on this forum now wouldn't understand
the comment anyway. It's only for those who were into amateur
astronomy in the 1980s. The magazine is a kind of optical research
trade publication.
-Rich

Rich, Would you elaborate just a bit on the ad. You've aroused my
curiousity. Thanks, Mr. Darian Rachal

"RichA" wrote in message ...
On Wed, 8 Jun 2005 15:51:54 +0200, "md" not given to avoid spam
wrote:


"RichA" wrote in message ...
Anyone catch their ads lately in Photonics/Spectra magazine?
-Rich

never heard of that magazine. and why is this important?


It's not,

ah

and most people on this forum now wouldn't understand
the comment anyway.

so, you posted it because....?

It's only for those who were into amateur
astronomy in the 1980s.

I was, but I was a poor teenager with a homebuilt telescope and mount.

The magazine is a kind of optical research
trade publication.
-Rich

Rich Samuels wrote:

Edmund is a very good company. They can be expensive, yes, but their
equipment is first class and always backed up by the firm.

They don't have the stock to back up their discontinued products.
I bought my Edmund Scientific eight inch Newtonian in England in
1982. When I moved to the USA I had it shipped to New Jersey (!):
unfortunately, I hadn't removed the eyepiece equipment and the
shipping company lost it after they removed everything from the
eyepiece mount (thankfully not the rack and pinion). The original
2"-1.25" adapter and special piece accepted a lens or a
lens barlow combination and a 'T' adapter.
All I could get to replace it, without involving a machine shop,
is a compromise where I have to put an extension into the new
2"-1.25" adapter for the lens and take it out for the barlow-lens
- disappointing, but at least I can use the telescope.

--
Ian Stirling, G4ICV, AB2GR, Long Valley, New Jersey, USA.
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