Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

New Phase Contrast American Optical Trinocular

Started by GOLGO13 , Mar 25 2023 06:23 PM

Please log in to reply

8 replies to this topic

#1 GOLGO13

Cosmos

topic starter

Posts: 8,370
Joined: 05 Nov 2005
Loc: West Virginia

Posted 25 March 2023 - 06:23 PM

Got a new sweet American Optical Trinocular with Phase Contrast. Getting a bit more serious about the Microscope hobby. It's fun and good when the weather stinks.

Below are cheek cells in brightfield (less visible) and Phase Contrast (more visible)

Edited by GOLGO13, 25 March 2023 - 06:27 PM.

dswtan, RichA, TOMDEY and 4 others like this

Back to top

#2 RichA

Cosmos

Posts: 7,542
Joined: 03 Jun 2010
Loc: Toronto, Canada

Posted 25 March 2023 - 06:46 PM

Nice! I didn't even know the AO ever had phase.

Back to top

#3 GOLGO13

Cosmos

topic starter

Posts: 8,370
Joined: 05 Nov 2005
Loc: West Virginia

Posted 25 March 2023 - 07:23 PM

Nice! I didn't even know the AO ever had phase.

It's called Phasestar on the scope. Pretty nice unit from what I can tell.

Back to top

#4 mikerepp

Vanguard

Posts: 2,001
Joined: 04 Aug 2014
Loc: Harwood Heights, Illinois, dark site Manistique, Michigan in UP

Posted 26 March 2023 - 11:43 AM

Nice! I didn't even know the AO ever had phase.

American Optical was typically ahead of other manufacturers in microscopy. But all manufacturers of quality microscopes made phase contrast, darkfield, Rheinberg color and pseudo phase contrast.

You have a very nice Series 10 Microscope. Excellent quality, still found in laboratories.

Glad your already having fun with it!

Back to top

#5 vertex2100

Mariner 2

Posts: 218
Joined: 25 Mar 2019
Loc: Magic kingdom of Saudi Arabia and Virginia

Posted 26 March 2023 - 06:06 PM

Wonderful. I have a phase one too. I like the solidity of the fixed stage and smoothly operating controls. You can change the objective turrets very quickly by loosening only the one front screw. I put oil 50x and 100x on one turret and bright field on the other extra ones. Being infinity, you can stack up extra accessories. This one has the Bertrand lens like yours, an analyser/polarizing and a filter turret that I keep a green filter for phase contrast plus extras.

GOLGO13, mikerepp and j.gardavsky like this

Back to top

#6 vertex2100

Mariner 2

Posts: 218
Joined: 25 Mar 2019
Loc: Magic kingdom of Saudi Arabia and Virginia

Posted 26 March 2023 - 06:21 PM

Your stage and the rest of the scope looks like it was never used. The epoxy paint polishes up nicely. The small chromed thumb screws get rusted easily so I polish all of them to remove this rust and make them shiny again. The objectives are very parfocal, so you can adjust the focus stop to just put the turret down all the way to it with the coarse focus and then be in focus quickly with small adjustments of the fine one.