Search found 255 matches

by wporter
Fri May 05, 2017 12:06 am
Forum: Microscopes and optics
Topic: chipped lense I think....
Replies: 9
Views: 1459

Re: chipped lense I think....

It looks like something is on the surface of the lens, making it wavy. Could it be a dried contaminant? Maybe someone tried to use it with immersion oil? Try cleaning it with a Q-tip with some acetone on it.
by wporter
Sun Apr 30, 2017 10:06 pm
Forum: Pictures and Videos
Topic: Funkien - Blattabdruck
Replies: 6
Views: 750

Re: Funkien - Blattabdruck

Tolle Bilder! Sehr scharf. Ich danke Ihnen für das Teilen. Welche Technik hast du benutzt?

("Nice images! Very sharp. Thank you for sharing. What technique did you use?" At least, that's what it's supposed to mean...)
by wporter
Wed Apr 26, 2017 9:42 pm
Forum: Resources (online, books etc.)
Topic: Reichert Univar microscope operating manual (English-language version), v.1.1
Replies: 11
Views: 5075

Re: Reichert Univar microscope operating manual (English-language version), v.1.1

Good tips, Apochronaut. I hadn't thought of researching patents. I had checked with Reichert Microscope Services (now at http://www.reichert.com/microscopes/) about a year ago, back when they sold parts and serviced microscopes; the guy who responded (Raymond Halbert), who worked for Ametek (Depew, ...
by wporter
Wed Apr 26, 2017 5:31 pm
Forum: Resources (online, books etc.)
Topic: Reichert Univar Operating Manual, the latest version (v 1.2)
Replies: 0
Views: 1250

Reichert Univar Operating Manual, the latest version (v 1.2)

A few errors have been fixed, and an aesthetic enhancement has been made in the text portions having to do with the configuration steps (more in line with the original manual, bullets instead of hyphens.)

http://blueplanettechnics.com/downloads/
by wporter
Tue Apr 25, 2017 4:45 pm
Forum: Resources (online, books etc.)
Topic: Reichert Univar microscope operating manual (English-language version), v.1.1
Replies: 11
Views: 5075

Re: Reichert Univar microscope operating manual (English-language version), v.1.1

Thanks, Apochronaut. Info about this microscope does seem to be extremely sparse. Perhaps someone from Austria who knows something about the Reichert company will chime in and educate all of us. It's too bad that the company absorptions and mergers (especially, in this case, the Leica Group formatio...
by wporter
Mon Apr 24, 2017 2:36 pm
Forum: Resources (online, books etc.)
Topic: Reichert Univar microscope operating manual (English-language version), v.1.1
Replies: 11
Views: 5075

Re: Reichert Univar microscope operating manual (English-language version), v.1.1

Thanks, guys, glad to share. It was a ton of work, but I had no alternative, as I'm restoring one of the beasts. Apo, do you know the production years of the Univar? I'm guessing that it came out in 1973, and was maybe produced until 1978? I think that's near the time the Polyvar first came out, but...
by wporter
Sun Apr 23, 2017 11:57 pm
Forum: Resources (online, books etc.)
Topic: Reichert Univar microscope operating manual (English-language version), v.1.1
Replies: 11
Views: 5075

Reichert Univar microscope operating manual (English-language version), v.1.1

Here is a link to the manual that I recently finished translating (with thanks to Google Translate for significant help) from the public-domain German-language version (1975 ed., off the internet). Minor edits for clarity: http://blueplanettechnics.com/wp-content/uploads/2017/04/Reichert-Univar-Engl...
by wporter
Thu Apr 20, 2017 4:24 pm
Forum: Collecting microscopes and slides
Topic: Microscope companies and their mergers, etc
Replies: 8
Views: 1844

Re: Microscope companies and their mergers, etc

Good stuff, apochronaut; I'll see how I can fit it in.
by wporter
Wed Apr 19, 2017 7:22 pm
Forum: Collecting microscopes and slides
Topic: Microscope companies and their mergers, etc
Replies: 8
Views: 1844

Re: Microscope companies and their mergers, etc

Yep, I'll obviously have to do a better distinction between the brand name, the company division, the holding company, etc. Somewhere I read that AO was used as the brand after 1961 (post-AO-Spencer?), then changed to Reichert in 1972, then to Reichert-Jung in 1986, then to Leica in 1990, but it can...
by wporter
Wed Apr 19, 2017 4:54 pm
Forum: Collecting microscopes and slides
Topic: Microscope companies and their mergers, etc
Replies: 8
Views: 1844

Re: Microscope companies and their mergers, etc

Thanks for your inputs. 75RR: Will do. I will put the legends on a separate page, and perhaps the charts also, e.g., one for Olympus, one for Zeiss, etc., ad infinitum. WOW! That is a beautiful microtome! Nice! That may be some kind of manufacturing record, 80+ years. apochronaut: thanks for the lik...
by wporter
Wed Apr 19, 2017 2:08 am
Forum: Collecting microscopes and slides
Topic: Microscope companies and their mergers, etc
Replies: 8
Views: 1844

Microscope companies and their mergers, etc

I've been fascinated, but confused, by the history of the microscope industry over the last few decades. Scattered tidbits keep cropping up in this forum, primarily in the comments from a few very knowledgeable individuals (Apochronaut, this is all your fault). To help me put it all together, I've r...
by wporter
Tue Mar 28, 2017 4:31 pm
Forum: Pictures and Videos
Topic: Tardigrade SEM photo
Replies: 7
Views: 851

Re: Tardigrade SEM photo

It can't be alive; the preparation protocols (that I used to use on single-celled organisms, at least) for SEM examination involved fixing, then dehydration (several steps in increasing % ethanol), then critical-point drying, then sputter-coating with a gold flash (to reflect the electron beam). Thi...
by wporter
Mon Mar 27, 2017 2:14 pm
Forum: Pictures and Videos
Topic: Tardigrade SEM photo
Replies: 7
Views: 851

Tardigrade SEM photo

For those who missed this great image:

https://apod.nasa.gov/apod/ap170326.html


(Not my photo, but I wish it was!)
by wporter
Thu Mar 09, 2017 2:31 am
Forum: Microscopy accessories
Topic: could this be restored?
Replies: 10
Views: 2677

Re: could this be restored?

The film may well be ruined by the soak; mine was (the filter for the Wild M40). It came out looking very corrugated and was very weak, so I threw it out. But you may want to replace your film, anyway. Or not, if the polarization is still taking place, and it's just a cosmetic issue, being the polar...
by wporter
Sun Mar 05, 2017 12:34 am
Forum: Microscopy accessories
Topic: could this be restored?
Replies: 10
Views: 2677

Re: could this be restored?

I recently had the same issue with some polarizing filters on two microscopes I'm restoring (a Reichert Univar and a Wild-Heerbrugg M40). It is indeed delamination of the polarizing film between the two pieces of glass. Why they delaminate like this, I don't know; but you can get the things complete...