Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D
|
|
Notice |
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
|
|
Re: surplusshack
- From: Steve Berezin <sbere@xxxxxxxxxxxxx>
- Subject: Re: surplusshack
- Date: Mon, 13 Dec 1999 14:13:26 -0800
Greg Erker wrote:
>
> >> Sounds nice. Are the lenses really
> >> achromats?
> >
> >They seem to be. They do have more pincushion distortion than I would
> >normally associate with achromats however. It is possible that it is a
> >set of DCX lenses.
>
> Perhaps. How many reflections do you see
> in them? On a coated (cemented) achromat you will
> see two coloured ones and a faint white one.
> If it is an air spaced achromat you should see
> four reflections.
>
I saw at least 4 reflections from two directions, all in color. I found
this confusing, took the viewer apart and found it was actually a
triplet.
> > What is the diameter?
> >
> >About an inch. These are used, however, and have a few dings and
> >scratches.
>
> I see. Not big enough to get me excited.
>
> >You are correct, it is 4x and not 50mm FL. They are not perfect but
> >still built very solidly. I use them as a mounting aid.
> >
>
> Thanks for the review.
>
> Greg
--
mailto:sbere@xxxxxxxxxxxxx
http://www.berezin.com/3d
Steve Berezin
Berezin Stereo Photography Products
21686 Abedul
Mission Viejo, CA 92691
USA
|