Search found 977 matches

by dtsh
Tue Apr 07, 2020 6:08 pm
Forum: Beginner's corner
Topic: Want to buy new compound microscope
Replies: 14
Views: 5202

Re: Want to buy new compound microscope

I just went through a somewhat similar instance where I was looking to spend around $1000 for a stereomicroscope, I had reviewed a number of models and had a selection of about 6 I figured were reasonable candidates. I reached out to the community for advice on selecting, as I had no direct experien...
by dtsh
Mon Apr 06, 2020 6:26 pm
Forum: Miscellaneous
Topic: Repository of exotic diatoms?
Replies: 15
Views: 5366

Re: Repository of exotic diatoms?

I have one of the uiquitous cheap import centrifuges often labelled only as 800-1. It's cheap in both price and assembly quality, but aside from a few minor repairs it has been reliable thus far. I wouldn't trust it in a professional lab environment where it would see heavy use, but in my home lab i...
by dtsh
Wed Apr 01, 2020 3:56 pm
Forum: My microscope
Topic: BH-1 condenser pinion problem
Replies: 2
Views: 1840

Re: BH-1 condenser pinion problem

If you mean the Olympus BH1 series, specifically the pinion for the condenser, I too will need a replacement for this. I've not tried modeling any helical gears in CAD so that is an unknown for me. If nothing can be found I'm willing to give modelling it a try, but I will need help getting info abou...
by dtsh
Tue Mar 31, 2020 4:17 pm
Forum: Introduce yourself
Topic: dunk in Peterborough UK
Replies: 9
Views: 3818

Re: dunk in Peterborough UK

Welcome aboard, dunk.

There's an incredible knowledgebase here to tap into.

Do you have a compound already and any particular subjects you hope to view? If you have a compound scope already, what do you have? Happy with it?
by dtsh
Sun Mar 29, 2020 9:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: (solved) Wanted AO Cycloptic 56M, 58M, 59M
Replies: 3
Views: 2148

Re: Wanted AO Cycloptic 56M, 58M, 59M

I have some deals in the works, hopefully this is no longer a desire.

Thanks
by dtsh
Sat Mar 28, 2020 6:30 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

After considering everyone's input, I think I am going to try and acquire an AO Cycloptic and see how things go. By reports it seems to fit most of my requirements, but more importantly it will give me a chance to find out what I actually need without inordinate expense. Then, once I've managed to g...
by dtsh
Sat Mar 28, 2020 6:23 pm
Forum: For forum members who want to buy and sell equipment
Topic: (solved) Wanted AO Cycloptic 56M, 58M, 59M
Replies: 3
Views: 2148

(solved) Wanted AO Cycloptic 56M, 58M, 59M

Title pretty much says it all.
I don't mind a few dings and chips, but I need it to be in good shape optically.
Must have eyepieces (10x or 15x) and will compensate accordingly for any extras (eyepieces, barlows, etc)
by dtsh
Thu Mar 26, 2020 7:53 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

The problem with a compound microscope at 40x is that it won't have sufficient working distance for dissection. And even if you did get an extra long working distance 40x objective, it wouldn't have the stereo effect you want to get depth perception. Absolutely, using the compound isn't an option f...
by dtsh
Thu Mar 26, 2020 2:40 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

The gadget dates back to 70ies, I think I saw it in one of the Wild brochures from back then. Wild has been part of Leica Microsystems since about 1990. Of course, the gadget has now been copied by other brands...the unfortunate way of lesser makers. Interesting device! As for copying, such is the ...
by dtsh
Thu Mar 26, 2020 1:56 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

Do you know from previous experience what high magnification you'll want? New users are often surprised how much detail comparatively low magnification (e.g. 20x, 30x) yields. The lower the magnification, the more of a 3D effect you'll have and the more room to do your dissection tasks. It might be...
by dtsh
Thu Mar 26, 2020 12:00 am
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

There are a lot of great options. Do you have a good idea of how much working distance you need, and what field of view you want to cover? Getting a 5mm field of view doesn't require anything too extreme (about 4x~ mag on a stereo with 10x oculars, depending on the field number) but I'd assume you'...
by dtsh
Wed Mar 25, 2020 9:19 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Re: Seeking selection advice for stereo microscope

I've had a Meiji stereo microscope for about 20 years. It's held up pretty well. Good for general purpose work around the lab. Here's a link to it on Amazon: https://www.amazon.com/Meiji-Techno-EMZ-13TR-Trinocular-Microscope/dp/B072FNBFKC Might be worth looking at. Thanks, I'll look into that as we...
by dtsh
Wed Mar 25, 2020 8:08 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 23
Views: 10364

Seeking selection advice for stereo microscope

Hello everyone, My interests have taken me into a new area and I find that my compound microscopes aren't really up to the task for this, so I find myself in need of a stereo microscope, but it unfortunately needs to have relatively high magnification. I will be working on fairly small insects with ...
by dtsh
Sat Aug 17, 2019 8:06 am
Forum: Identification help
Topic: The Thing
Replies: 14
Views: 8967

Re: The Thing

Heather, thank you very much for your kind comment ! Will go to the same place to look for this grass .... Unless I have misread your location, you shouldn't have much trouble locating sedges along much of the lakeshore. There are large numbers of them up by Montrose Beach (bring the dog if you hav...
by dtsh
Thu May 16, 2019 5:16 am
Forum: My microscope
Topic: Brinkmann
Replies: 9
Views: 6942

Re: Brinkmann

Here is an image of the stage
brinkmann_stage.jpg
brinkmann_stage.jpg (172.42 KiB) Viewed 6941 times
And lastly, the condenser.
brinkmann_condenser.jpg
brinkmann_condenser.jpg (109.8 KiB) Viewed 6941 times
And the lamp housing
brinkmann_lamp.jpg
brinkmann_lamp.jpg (217.82 KiB) Viewed 6940 times


Any information is much appreciated!
by dtsh
Thu May 16, 2019 5:14 am
Forum: My microscope
Topic: Brinkmann
Replies: 9
Views: 6942

Brinkmann

Here is my Brinkmann, I don't have much information about it and I welcome any and all information about it. I have heard is actually a Zeiss model. If this is true, I am wondering how compatible it might be with other models should I choose to expand it's functionality at some point. Design-wise, i...
by dtsh
Wed May 01, 2019 6:12 pm
Forum: Resources (online, books etc.)
Topic: Identification and general literature on fresh water protists
Replies: 4
Views: 4624

Re: Identification and general literature on fresh water protists

I have not reviewed it myself (yet), but I have seen recommendations of "Fresh-Water Invertebrates of the United States: Protozoa to Mollusca" by Pennak recommended. It appears to be much of what you're looking for, though the price may not be. Used copies of older versions are substantially more af...