Search found 330 matches

by Alan Wood
Sat Aug 08, 2020 4:00 pm
Forum: Equipment Discussions
Topic: Olympus MS Plan Objectives
Replies: 2
Views: 85

Re: Olympus MS Plan Objectives

M = metallurgical (corrected for use without coverslip) S = superwide (flat to FN 26.5) There is a list of Olympus BH and BH-2 objective designations here: http://www.alanwood.net/olympus/microscope-objectives.html Working distance is 10.20 mm according to the LBM objective price list, or 9.00 mm ac...
by Alan Wood
Thu Aug 06, 2020 8:37 am
Forum: General Discussion Forum and Community Announcements
Topic: Electronics Swap canceled for 2020
Replies: 2
Views: 52

Re: Electronics Swap canceled for 2020

Ray

There is an emoji "HAND WITH INDEX AND MIDDLE FINGERS CROSSED": 🤞

See 129310 on this page:
http://www.alanwood.net/unicode/supplem ... raphs.html

If the emoji is visible, it means that the recent forum upgrade allows us to use all sorts of Unicode characters.

Alan Wood
by Alan Wood
Mon Jul 27, 2020 5:16 am
Forum: General Discussion Forum and Community Announcements
Topic: E-mail notification of PMs turned off by upgrade
Replies: 1
Views: 97

E-mail notification of PMs turned off by upgrade

I don't often sign in to the forums, so I rely on being notified by e-mail when someone sends me a PM. Today I signed in and was surprised that I had some unread private messages. I checked my preferences, and notification of PMs by e-mail was not selected. I think this must have been turned off by ...
by Alan Wood
Wed Jul 08, 2020 3:56 pm
Forum: General Discussion Forum and Community Announcements
Topic: Ernie Ives: A Guide to Wood Microtomy
Replies: 4
Views: 2480

Re: Ernie Ives: A Guide to Wood Microtomy

Ernie Ives published a second edition of his book on CD.

If you would like to download a copy of the contents of the CD, send me a PM and I will give you a link.

Alan Wood
by Alan Wood
Sat Jul 04, 2020 3:41 pm
Forum: Equipment Discussions
Topic: Olympus BH2 Condenser Mount
Replies: 15
Views: 874

Re: Olympus BH2 Condenser Mount

Hi John Yes, my adapter is the same internal diameter all the way through. You will need to make sure that you can get the top of your Polyphos condenser close enough to the slide. When I tried an old Watson Kima condenser in my adapter, its top surface was 3 cm below the slide, far too low to be an...
by Alan Wood
Sat Jul 04, 2020 9:22 am
Forum: Equipment Discussions
Topic: Olympus BH2 Condenser Mount
Replies: 15
Views: 874

Re: Olympus BH2 Condenser Mount

Hi John My micrometer calipers are cheap plastic ones, but here goes: maximum diameter of dovetail: 46.7 mm minimum diameter of dovetail: cannot measure, the caliper arms are too short and too thick height of dovetail: 7.75 mm internal diameter: 38.8 mm (seems too small, but I checked several times ...
by Alan Wood
Sat Jun 13, 2020 3:42 am
Forum: Equipment Discussions
Topic: Olympus BH2 Condenser Mount
Replies: 15
Views: 874

I gave away my Watson Kima when we moved home last year, so I cannot measure the condenser.

I know it was much shorter than an Olympus BH-2 condenser.

Alan Wood
by Alan Wood
Fri Jun 12, 2020 3:19 pm
Forum: Equipment Discussions
Topic: Olympus BH2 Condenser Mount
Replies: 15
Views: 874

The Nikon condenser dovetail is slightly smaller than the Olympus one.

I have used 2 Nikon condensers on my Olympus BH-2, and they can be centred.

I have not tried Olympus condensers on a Nikon microscope.

Alan Wood
by Alan Wood
Fri Jun 12, 2020 9:35 am
Forum: Equipment Discussions
Topic: Olympus BH2 Condenser Mount
Replies: 15
Views: 874

I have something similar to the adapter from eBay: http://www.photomacrography.net/forum/userpix/1416_olympuscondenser39mmadapterbottom2019acquisition700_1.jpg It is designed to accept 39mm diameter condensers, but when I tried it with the condenser from my Watson Kima the top surface of the condens...
by Alan Wood
Sat Jun 06, 2020 3:38 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Step Size for sensor stacking
Replies: 13
Views: 672

Ray

There are tables here:

http://zerenesystems.com/cms/stacker/do ... romicrodof

Alan Wood
by Alan Wood
Sun May 24, 2020 4:30 am
Forum: Equipment Exchange
Topic: WTB Olympus BH2 BHS
Replies: 2
Views: 438

I don't have one for sale, but I can think of 3 members of the Quekett Microscopical Club in the UK who might be able to help. If you are interested, let me have your e-mail address in a PM and I will pass on your request. There is a list of UK companies that sell used microscopes here: http://www.q...
by Alan Wood
Mon May 18, 2020 9:36 am
Forum: Beginners Micro
Topic: Advice needed on photoeyepiece use and cameras - Olympus BHB
Replies: 8
Views: 576

Jonathan Sadly, the Olympus PM-ADF and the Photomicro Adapter L have become hard to find and expensive. It is very easy to use an Adapter L with a Canon EOS digital SLR, there are lots of OM-EOS adapters on eBay that have the necessary 2 mm thickness. For a Nikon digital SLR, you need to remove the ...
by Alan Wood
Sat May 02, 2020 4:08 pm
Forum: Beginners Micro
Topic: Olympus BHB rebuild - the story so far
Replies: 6
Views: 2365

Jonathan All photomicrographs need to be sharpened, and nearly all image editing programs can do this. The depth of field is tiny, so you probably need to take a series of photos at slightly different focus points, and then combine them in an image stacking program. There are free PDFs of the Olympu...
by Alan Wood
Fri Apr 24, 2020 3:00 pm
Forum: Community Members and Friends
Topic: Greetings from the UK
Replies: 5
Views: 1855

A Quekett member has modified his Olympus BHB for automated stacking: http://www.quekett.org/resources/article-archive/modifying-microscope-photography To find out more about your microscope, there are free PDFs of the brochure and the instruction manual here: http://www.alanwood.net/olympus/downloa...
by Alan Wood
Wed Apr 22, 2020 4:41 am
Forum: Equipment Discussions
Topic: Computer screen
Replies: 19
Views: 2928

I have an older version, the Dell U2410, and I really like the 1920x1200 format.

I don't need widescreen (I have a television for watching films), and I like the extra height as well as the colour fidelity.

Alan Wood