Search found 23 matches

by psneeley
Fri Jun 30, 2006 2:50 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Where to post Microscopes and other equipment for buy/sell?
Replies: 8
Views: 24403

>>I don't have a phase telescope for the microscope and the only one I could find/buy flat out doesn't work<< I out of my league here but I would have thought that this scope would have come with a built-in betrand lens -- are you sure it doesn't have one? Barring that, almost any phase telescope sh...
by psneeley
Thu Jun 29, 2006 4:50 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Where to post Microscopes and other equipment for buy/sell?
Replies: 8
Views: 24403

eBay is really the best place for a quick sale. If you can afford more time, maybe a lot more, try www.labx.com. The 'upside' of labx is that you will often get a better price there. The very best way to 'price' your scope is to see what similar (I mean almost like -- as in Zeiss Standard 16 or 19 p...
by psneeley
Sun Jun 11, 2006 10:02 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Proper darkfield microscopy?
Replies: 7
Views: 23600

You might consider an AO Spencer Series 10 (infinity corrected), or an AO series 4 (160mm) from ebay, or from another member of this forum or the Yahoo! Microscope forum. In fact, you might consider getting both. Rationale: 1. They are strongly made 2. Objectives are plentiful on ebay and elsewhere ...
by psneeley
Sat Jun 10, 2006 9:50 am
Forum: Photography Through the Microscope Gallery
Topic: Not a Springtail
Replies: 4
Views: 15846

You mean when Ms. Trunchable in the movie 'Matilda' calls her students little 'thrips', this is what she meant? Bugger! :wink:
by psneeley
Sat Jun 10, 2006 9:48 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Proper darkfield microscopy?
Replies: 7
Views: 23600

A Phase Condenser is a good BF condenser too. You can get DF from using the 40x annulus on the 10x objective (really, COL, but DF just the same). The 20x may give you good DF with 40x or 100x annulus -- you'll just have to try. If the phase condenser has a filter holder, you certainly can insert a D...
by psneeley
Fri Jun 09, 2006 6:30 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Proper darkfield microscopy?
Replies: 7
Views: 23600

The very best DF is gotten by using an oil immersion DF condenser oiled to the bottom of the slide. You'll need this to reach N.A. 0.85 or so. After that, you probably need very special DF condensers or must have an iris diaphragm (or DF cone inserted in the objective) to limit the N.A. A oil immers...
by psneeley
Thu Jun 08, 2006 6:37 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Phase contrast microscope for brightfield too ?
Replies: 8
Views: 26161

The working distance on the W.I. is purported to be .14 mm, slightly better than an oil immersion 100x (.1 mm). Tight, but . . . What really attracted me was that it was a Phase, Water Immersion -- never had such a beast -- an maybe more importantly, it has (well, absolutely needs) a coverslip corre...
by psneeley
Thu Jun 08, 2006 4:03 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Phase contrast microscope for brightfield too ?
Replies: 8
Views: 26161

"Since these new ( BF semi-plan phase ) Meiji objectives have more glass elements, they tend to transmit less light. We recommend for the best results and the brightest image that they be used only on the ML5000 series with the external 50 watt illuminator." I smell a rat . . . or at least a problem...
by psneeley
Wed Jun 07, 2006 4:02 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Phase contrast microscope for brightfield too ?
Replies: 8
Views: 26161

Was that 70x LOMO APO Water Immersion? Just wondering. If so, do you still use it? To the original question, I have used AO and WILD phase objectives in BF and they are very good. I had one bad experience with an Olympus Phase Objective (short barrell, older objective, 160mm T.L., 20x) where I tried...
by psneeley
Fri May 05, 2006 12:27 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Do you know what this is
Replies: 6
Views: 21062

I had sort of assumed it was a reflecting objective -- but I really don't know.

See: http://xmission.com/~psneeley/Personal/ ... gmicro.JPG
by psneeley
Mon May 01, 2006 5:01 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus EP IDs wanted
Replies: 4
Views: 18201

I believe Bi = Binocular. In other words, they have been matched (tested) in pairs to work well with one another.
by psneeley
Sun Apr 30, 2006 8:24 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus EP IDs wanted
Replies: 4
Views: 18201

My best info;

K = Compensating -- used for Fluorite and APO objectives
P = Photo
WF = Wide Field

I believe the 'G' is also a photo eyepiece.

See http://microscopy.fsu.edu/primer/anatomy/oculars.html

Trash!!? These are very valuable eyepieces. Keep checking that trash bin . . .
by psneeley
Wed Aug 24, 2005 5:54 pm
Forum: Photography Through the Microscope Gallery
Topic: Frontonia buccal area (for Oliver, Wim and Ron)
Replies: 11
Views: 7954

Charlie, You may have told before but I can't remember what you wrote. How are you achieving oblique? An insert stop in the filter tray below the condenser? A special diaphragm offsetting condenser (e.g. the LOMO 1.4 Abbe with oblique feature)? If so, can you rotate the diaphragm to control the dire...
by psneeley
Sat Apr 16, 2005 12:39 pm
Forum: Photography Through the Microscope Gallery
Topic: Navicula jacksoni (Schrader)
Replies: 12
Views: 9218

>>On the downside AO made no APO objectives in their infinity corrected line and finding one of their Ach/Apl 1.30 condensers for this series could take a lifetime<< On the upside, unless I'm wrong :? , the AO20 (and AO10) mounts -- both substage and condenser -- are compatible with the earlier Seri...