Search found 22 matches

by sailor_ed
Sun Sep 22, 2019 9:49 pm
Forum: Microscopy accessories
Topic: AO turret and condenser ID request
Replies: 4
Views: 3551

Re: AO turret and condenser ID request

Maybe this listing would be of interest:
https://rover.ebay.com/rover/0/0/0?mpre ... 2780578681
Apochronaut would say if it's suitable but the price seems great.

Ed
by sailor_ed
Tue Sep 03, 2019 8:06 pm
Forum: Microscopes and optics
Topic: What was your First Microscope?
Replies: 14
Views: 2297

Re: What was your First Microscope?

When I was about 14 (1958) my uncle lent me his microscope. He had purchased it for med school and now had little use for it so it was on semi-permanent loan. It gave me several years of observing the life I found in local ponds, lakes, and any place I could find water laying around. My uncle is now...
by sailor_ed
Wed Aug 28, 2019 7:25 pm
Forum: Microscopy accessories
Topic: American Optical Trinocular Port Dust Plug
Replies: 6
Views: 3781

Re: American Optical Trinocular Port Dust Plug

Have you been itching to buy a 3D printer? ;)
by sailor_ed
Sun Aug 11, 2019 6:21 pm
Forum: My microscope
Topic: My New Microscope
Replies: 4
Views: 3226

Re: My New Microscope

Very good! There are a lot of AO experts on the forum if you need help. Parts for your scope are not horribly expensive on ebay either so upgrading is not too hard.

Ed
by sailor_ed
Sat Apr 27, 2019 4:07 pm
Forum: Pictures and Videos
Topic: Paramecium vedio
Replies: 6
Views: 2199

Re: Paramecium vedio

Very nice videos! What is your equipment?
by sailor_ed
Thu Apr 25, 2019 5:51 pm
Forum: Introduce yourself
Topic: Coming out of the shadows!
Replies: 3
Views: 3182

Coming out of the shadows!

Greetings I have been lurking the forum for a while and done a few posts so I think it is time I "came out" :) . I started microscopy in my early teens with a turn of the century (19th to 20th) brass monocular scope. I spent many enjoyable hours with it and it solidified my interest in biology and m...
by sailor_ed
Sun Apr 07, 2019 3:49 pm
Forum: Pictures and Videos
Topic: Scale
Replies: 4
Views: 1807

Re: Scale

It could well be an insect wing scale.
by sailor_ed
Wed Apr 03, 2019 9:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: AO20 Trinocular heads for sale *Sold*
Replies: 3
Views: 1735

Re: AO20 Trinocular heads for sale

Will keep you in the line, PeteM.
by sailor_ed
Tue Apr 02, 2019 9:25 pm
Forum: For forum members who want to buy and sell equipment
Topic: AO20 Trinocular heads for sale *Sold*
Replies: 3
Views: 1735

AO20 Trinocular heads for sale *Sold*

AO20_heads.jpeg
AO20_heads.jpeg (177.59 KiB) Viewed 1735 times
I have two (don't ask :oops:) AO Trinocular heads for sale. Both in very good condition. Collimation OK and clean. Neither has plug for camera port or oculars. Asking $40 US plus shipping for each. Feel free to make offers.

Thanks
by sailor_ed
Fri Mar 01, 2019 4:59 pm
Forum: Microscopes and optics
Topic: A new AO objective design!?
Replies: 13
Views: 2437

Re: A new AO objective design!?

So I guess I must examine my lens more carefully to see if the surrounding mask is still intact?
by sailor_ed
Thu Feb 28, 2019 9:21 pm
Forum: Microscopes and optics
Topic: A new AO objective design!?
Replies: 13
Views: 2437

Re: A new AO objective design!?

So everyone except me probably knows about this. :oops: Well, not only me but the seller too. ;)

Thanks apochronaut!
by sailor_ed
Thu Feb 28, 2019 4:35 pm
Forum: Microscopes and optics
Topic: A new AO objective design!?
Replies: 13
Views: 2437

A new AO objective design!?

I purchased an AO 40/.66 plan achro on ebay. Cat # worn off. It has an odd dimple right in the center of the first lens. I had assumed that it was damage but now I have seen another lens advertised that seems to show the same thing. Does anyone have any thoughts about this? It is not an odd reflecti...
by sailor_ed
Mon Feb 25, 2019 4:44 am
Forum: For forum members who want to buy and sell equipment
Topic: Looking for ND filter set for AO20 turret
Replies: 7
Views: 2105

Re: Looking for ND filter set for AO20 turret

einman wrote:I have 2 of the ND filters, 25% and 50% and the green.
Thanks, PM sent.
by sailor_ed
Mon Feb 25, 2019 4:42 am
Forum: For forum members who want to buy and sell equipment
Topic: Looking for ND filter set for AO20 turret
Replies: 7
Views: 2105

Re: Looking for ND filter set for AO20 turret

Pete M


I am currently using a variable ND camera camera filter over the light well but it is not my preference. Thanks for the suggestion.

Ed
by sailor_ed
Sun Feb 24, 2019 9:53 pm
Forum: For forum members who want to buy and sell equipment
Topic: Looking for ND filter set for AO20 turret
Replies: 7
Views: 2105

Looking for ND filter set for AO20 turret

The AO20 came new with three different densities in the lower turret. They measured approx. 1.25 inches. Looking for all three.

Thanks k
by sailor_ed
Tue Jan 29, 2019 6:38 pm
Forum: Pictures and Videos
Topic: Diatom
Replies: 10
Views: 2737

Re: Diatom

When working with SEM photography I frequently encountered this illusion. I believe it is caused by the brains expectation that things are illuminated from above. This causes problems if things are illuminated ambiguously as is often the case with the SEM.. or lunar landscapes. I always rotated imag...
by sailor_ed
Mon Jan 21, 2019 5:32 pm
Forum: Collecting microscopes and slides
Topic: Help! I'm becoming "domesticated"!!
Replies: 22
Views: 11270

Re: Help! I'm becoming "domesticated"!!

If you have a PC with a usb3 port I would recommend the Omax A3550U3 5MP camera. It comes with good software and runs around $220 on Amazon. This can fit as is in an eyepiece tube or in the "parfocal AO tube" sold on eay.

Sorry for the thread drift
by sailor_ed
Mon Dec 03, 2018 3:42 pm
Forum: Microscopes and optics
Topic: Setting up AO20: help reqd with Koehler
Replies: 11
Views: 2595

Re: Setting up AO20: help reqd with Koehler

To wrap up this thread : It turned out that a small upwards adjustment of the stage was all that was required to fix my problems. Thanks for all the input, it really helped! The forum is a fantastic resource.
by sailor_ed
Mon Nov 26, 2018 3:39 am
Forum: Microscopes and optics
Topic: Setting up AO20: help reqd with Koehler
Replies: 11
Views: 2595

Re: Setting up AO20: help reqd with Koehler

If I were to focus on the leaves with a blank slide it would lift the slide by several tenths of a millimeter or more. If I start to raise the stage I am almost sure I will hit the 100x objective on the slide. I have never used a scope that seemed to have no room for error. It seems to me there must...
by sailor_ed
Sun Nov 25, 2018 9:34 pm
Forum: Microscopes and optics
Topic: Setting up AO20: help reqd with Koehler
Replies: 11
Views: 2595

Re: Setting up AO20: help reqd with Koehler

Thanks for the replies. Unfortunately the specimen is right way up, in focus and no filters.

There is a lens in the base and the field diaphragm itself but I am reluctant to start playing under there until I have exhausted all other options.

Thanks again.
by sailor_ed
Sun Nov 25, 2018 8:02 pm
Forum: Microscopes and optics
Topic: Setting up AO20: help reqd with Koehler
Replies: 11
Views: 2595

Setting up AO20: help reqd with Koehler

I am setting up a new to me AO20 and something is wrong that is outside my limited expertise. I am using a 1240 turret with its 1242 condenser lens. I have removed the lower doublet as indicated in the manual I downloaded for the scope. It appears to be properly secured in the yoke. The problem is t...
by sailor_ed
Mon Nov 05, 2018 5:22 pm
Forum: Microscopes and optics
Topic: ISI/Akashi WB-6 scanning electron microscope
Replies: 1
Views: 1837

Re: ISI/Akashi WB-6 scanning electron microscope

I just ran across this post and my information may be a bit late and a bit sketchy but here goes. I ran an SEM lab in the'70s thru '90s. I believe the ISI is of this era. If memory serves it was a "desktop" instrument. If it has a column length of less than a meter then this would be the case. I cau...