Search found 27 matches

by bcjolly
Mon Sep 28, 2020 12:29 am
Forum: Pictures and Videos
Topic: Great Video on DIC
Replies: 2
Views: 228

Great Video on DIC

by bcjolly
Thu Sep 24, 2020 1:35 am
Forum: Microscopes and optics
Topic: Illumination for series 20 dark phase contrast
Replies: 3
Views: 186

Re: Illumination for series 20 dark phase contrast

I used a regular 10x to center up the apertures of the AO series 20 and used the phase objectives and anulli in the turret for phase.
Barry
by bcjolly
Wed Sep 23, 2020 8:11 pm
Forum: Microscopes and optics
Topic: Illumination for series 20 dark phase contrast
Replies: 3
Views: 186

Illumination for series 20 dark phase contrast

Almost a year ago I purchased a nice series 20 by American Optical. Over time I purchased the correct accessories for dark phase operation. I have gone through the manual and set everything up according to factory recommendations. Using a 10x bright fielld objective and no filters in the carousel I ...
by bcjolly
Mon Nov 18, 2019 10:24 pm
Forum: Beginner's corner
Topic: What am I seeing?
Replies: 1
Views: 532

What am I seeing?

I purchased a set of bacterial slides from Amscope, 10 slides in all. Anthrax, tetanus, botulism, tuberculosis, etc. In viewing these slides through the microscope I am seeing numerous small objects and some larger crystalline looking objects. I am assuming the small objects are the bacteria, but wh...
by bcjolly
Thu Oct 03, 2019 4:20 am
Forum: Beginner's corner
Topic: AO phase condensers
Replies: 7
Views: 1592

Re: AO phase condensers

Phil,
PM sent.
by bcjolly
Thu Oct 03, 2019 12:05 am
Forum: Beginner's corner
Topic: AO phase condensers
Replies: 7
Views: 1592

Re: AO phase condensers

I had thought about machine work. I have a lathe and a mill.
by bcjolly
Wed Oct 02, 2019 11:32 pm
Forum: Beginner's corner
Topic: AO phase condensers
Replies: 7
Views: 1592

Re: AO phase condensers

That's why I have not found any of them. By the way, I have the AO20 up and working. Thanks for being there!
Barry
by bcjolly
Wed Oct 02, 2019 9:33 pm
Forum: Beginner's corner
Topic: AO phase condensers
Replies: 7
Views: 1592

Re: AO phase condensers

Phil,
Would it be feasible to swap out a dovetail from another condenser that fits an AO110 and put it on a 1240? I figure that I can find a dovetail easier than I can find a 1201.
by bcjolly
Wed Oct 02, 2019 4:51 pm
Forum: Beginner's corner
Topic: AO phase condensers
Replies: 7
Views: 1592

AO phase condensers

What is the difference between the AO phase condensers cat# 1201 and cat# 1240? Are they the same with just a different cat#? Will a cat# 1240 work on an AO110 for phase microscopy?
by bcjolly
Mon Sep 30, 2019 4:35 pm
Forum: Beginner's corner
Topic: cheap microscope for identifying soil life?
Replies: 5
Views: 1825

Re: cheap microscope for identifying soil life?

I am a newbie here so my opinion doesn't carry much weight. With regard to observing bacteria through a microscope, my results have not been promising. Bacteria are small requiring high power in order to view. This means the images will not have the clarity produced by lower power objectives. Bacter...
by bcjolly
Sat Aug 17, 2019 10:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Found, American Optical dark phase objectives
Replies: 2
Views: 1601

WTB: Found, American Optical dark phase objectives

Looking for AO cat# 1212 20X dark phase objective.

Thanks for your help!
Best wishes,
Barry C Jolly
by bcjolly
Sun Aug 04, 2019 10:26 pm
Forum: My microscope
Topic: My New Microscope
Replies: 4
Views: 3099

My New Microscope

Just bought this American Optical series 20. https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/173950827192 Would appreciate any thoughts, positive or negative, concerning this instrument. I'm new to the forum and have read every post I could find concerning AO microscopes and acc...
by bcjolly
Thu Aug 01, 2019 7:35 pm
Forum: For forum members who want to buy and sell equipment
Topic: AO20 Phase contrast/Darkfield setup
Replies: 13
Views: 5287

Re: AO20 Phase contrast/Darkfield setup

Thanks for the reply.
Barry
by bcjolly
Thu Aug 01, 2019 4:16 am
Forum: For forum members who want to buy and sell equipment
Topic: AO20 Phase contrast/Darkfield setup
Replies: 13
Views: 5287

Re: AO20 Phase contrast/Darkfield setup

Is this item still available?
by bcjolly
Mon Jul 22, 2019 12:42 am
Forum: Beginner's corner
Topic: How important is the right eyepiece?
Replies: 6
Views: 1708

Re: How important is the right eyepiece?

Thank you, Sir! You are a wealth of information.
bcjolly
by bcjolly
Sun Jul 21, 2019 12:15 pm
Forum: Beginner's corner
Topic: How important is the right eyepiece?
Replies: 6
Views: 1708

Re: How important is the right eyepiece?

Yes! The microscope is parfocal.
by bcjolly
Sun Jul 21, 2019 12:36 am
Forum: Beginner's corner
Topic: How important is the right eyepiece?
Replies: 6
Views: 1708

How important is the right eyepiece?

I recently purchased an American Optical 110 microscope at what I consider a good deal. It arrived with cat#145 eyepiece. I noticed that the instrument originally was marketed with cat #180 eyepieces. Will I notice a difference between the two?
Barry
by bcjolly
Fri Jul 19, 2019 12:32 am
Forum: For forum members who want to buy and sell equipment
Topic: Slide Holder
Replies: 1
Views: 1175

Re: Slide Holder

Part found! :)
by bcjolly
Fri Jul 19, 2019 12:07 am
Forum: Beginner's corner
Topic: Fine Focus Problem
Replies: 9
Views: 2240

Re: Fine Focus Problem

Got her fixed. Those screws are touchy. Thanks for all your help. Delivered the microscope to my daughter this afternoon. She was thrilled!
Barry
by bcjolly
Thu Jul 18, 2019 12:01 am
Forum: Beginner's corner
Topic: Fine Focus Problem
Replies: 9
Views: 2240

Re: Fine Focus Problem

Sir, You are correct in your assessment of the problem. I had time to take the fine focus knobs off both sides of the microscope stand. There was grease on the washer, the spring washer, the acrylic washer, and the knob and screw. I cleaned the grease off and re-greased the parts with a synthetic gr...
by bcjolly
Wed Jul 17, 2019 3:05 pm
Forum: Beginner's corner
Topic: Fine Focus Problem
Replies: 9
Views: 2240

Re: Fine Focus Problem

Yes! The other knob, with graduations, works fine.
by bcjolly
Wed Jul 17, 2019 12:33 am
Forum: Beginner's corner
Topic: Fine Focus Problem
Replies: 9
Views: 2240

Re: Fine Focus Problem

Dear Sir, Thank you for your advice. I had a little time to work on the microscope today. I was not able to get the fine focus working as it should. However, I noticed that the fine focus knob worked well when I lifted the nose piece. I am now thinking that maybe the problem is within the part that ...
by bcjolly
Mon Jul 15, 2019 3:14 am
Forum: Beginner's corner
Topic: Fine Focus Problem
Replies: 9
Views: 2240

Fine Focus Problem

I recently purchased a American Optical Series 10 microscope for my daughter. The fine focus knob on the right side works as intended. The fine focus knob on the left side appears to slip. There must be a clutch or some type of mechanism connecting the two knobs. I think I can fix it but would like ...
by bcjolly
Sat Jul 06, 2019 3:31 am
Forum: For forum members who want to buy and sell equipment
Topic: Slide Holder
Replies: 1
Views: 1175

Slide Holder

Need a slide holder for American Optical 110 microscope. Thanks!
Barry