Search found 35 matches

by pdxhiker
Fri Jun 21, 2019 4:15 pm
Forum: Home-made microscope adaptations
Topic: Microscope Binohead for telescopes & with mirrors
Replies: 9
Views: 6017

Re: Microscope Binohead for telescopes & with mirrors

I had a look at the binoviewers available through Astromart and on ebay and have a few comments. Firstly, a lot of the second hand ones are using standard 23mm microscope eyepiece tubes, which limits the f.o.v. you can get obviously, especially with long focal length eyepieces. One, was even listed...
by pdxhiker
Sat Jun 01, 2019 2:22 am
Forum: Home-made microscope adaptations
Topic: Microscope Binohead for telescopes & with mirrors
Replies: 9
Views: 6017

Re: Microscope Binohead for telescopes & with mirrors

Aside from the central beamsplitting prism, the Jentsch head for the AO series 10/20 used mirrors, as did the Seidentopf heads for the 100 series and the 400 series. The Jentsch head has a travelling telan lens, that compensates for the interpupillary change in tube length but it can easily be remo...
by pdxhiker
Thu May 30, 2019 5:52 am
Forum: Home-made microscope adaptations
Topic: Microscope Binohead for telescopes & with mirrors
Replies: 9
Views: 6017

Re: Microscope Binohead for telescopes & with mirrors

Aside from the central beamsplitting prism, the Jentsch head for the AO series 10/20 used mirrors, as did the Seidentopf heads for the 100 series and the 400 series. The Jentsch head has a travelling telan lens, that compensates for the interpupillary change in tube length but it can easily be remo...
by pdxhiker
Wed May 29, 2019 8:57 pm
Forum: Home-made microscope adaptations
Topic: Microscope Binohead for telescopes & with mirrors
Replies: 9
Views: 6017

Re: Microscope Binohead for telescopes & with mirrors

Both Zeiss and Leica introduce corrections in their tube lenses, so I am not sure they would be suitable for this kind of usage. thank you, microscope heads are widely used in astronomy. I am not sure if the correcter is inside the tube. You can see the https://astromart.com/classifieds/astromart-c...
by pdxhiker
Wed May 29, 2019 7:46 pm
Forum: Home-made microscope adaptations
Topic: Microscope Binohead for telescopes & with mirrors
Replies: 9
Views: 6017

Microscope Binohead for telescopes & with mirrors

Greetings everyone. I am looking for a Zeiss Microscope Head which can be modified to use in telescopes. Challenge is that most microscope heads are all prims and 6 something air to glass surfaces which introduces Spherical Aberrations at high-magnification and loss in contrast. I am looking for a h...
by pdxhiker
Tue Dec 20, 2016 12:56 am
Forum: Microscopes and optics
Topic: Disassembling Reichert Stereo Star Zoom 580
Replies: 10
Views: 1776

Re: Disassembling Reichert Stereo Star Zoom 580

I will APO comment on the collimation issues as he has significant experience fixing these older scopes. In regards to using Q-tips, you should be able to use "Q-tips", meaning real Q-tip branded cotton swabs as some of the generics have been accused of containing contaminants that can scratch. I h...
by pdxhiker
Thu Dec 15, 2016 11:26 pm
Forum: Microscopes and optics
Topic: Disassembling Reichert Stereo Star Zoom 580
Replies: 10
Views: 1776

Re: Disassembling Reichert Stereo Star Zoom 580

update:

I thoroughly cleaned the optics once again removing all the grease, its better but I see the image on the left optical path is not sharp on the edges and blurs out (chromatic abberation?) any thoughts if this is fixable or not.
by pdxhiker
Thu Dec 15, 2016 5:11 am
Forum: Microscopes and optics
Topic: Disassembling Reichert Stereo Star Zoom 580
Replies: 10
Views: 1776

Re: Disassembling Reichert Stereo Star Zoom 580

I sent you the parts manual if that helps. There are 6 inch "Q-tips" you can purchase that might make it a little easier. Otherwise APO pretty much said it all. There is a window in there. Sometimes, on older heads, there can be debris trapped by grease from the diopter. With care and good light yo...
by pdxhiker
Wed Dec 14, 2016 7:29 pm
Forum: Microscopes and optics
Topic: Disassembling Reichert Stereo Star Zoom 580
Replies: 10
Views: 1776

Re: Disassembling Reichert Stereo Star Zoom 580

My understanding of " eyepiece cell" would be one of the cemented doublets in the eyepiece itself. I can't see how grease could have gotten in there, so I assume you might mean the optical window, below the eyepiece. Grease from the diopter thread an be spread around on that, with careless cleaning...
by pdxhiker
Wed Dec 14, 2016 5:48 pm
Forum: Microscopes and optics
Topic: Disassembling Reichert Stereo Star Zoom 580
Replies: 10
Views: 1776

Disassembling Reichert Stereo Star Zoom 580

I happen to purchase a Reichert Stereo Star Zoom 580 StereoMicroscope from fleabay, the scope looked very clean and well maintained. But now I see that the right side optics is cloudy potentially due to the grease applied has seeped in to the glass collecting dust which is stuck to the surface, also...
by pdxhiker
Wed Dec 07, 2016 3:31 pm
Forum: Microscopes and optics
Topic: Zeiss Optovar or Intermediate Pol tube
Replies: 5
Views: 1292

Re: Zeiss Optovar or Intermediate Pol tube

thanks Optovar comes with an analyser slot, so I think one less equipment if moving to DIC.

Also the magnification offered by Optovar, is it corrected for resolution or empty magnification.
by pdxhiker
Mon Nov 28, 2016 3:03 pm
Forum: Microscopes and optics
Topic: Zeiss Optovar or Intermediate Pol tube
Replies: 5
Views: 1292

Re: Zeiss Optovar or Intermediate Pol tube

All you need for transmitted light DIC are 2 Pol filters and 2 DIC prizms. One Pol filter goes on the DIC comdenser (Type 1 or type 2, get Type 1 and type 1 slider with single arrow, and you don't need individual prisms for the objectives). Than get POl (PAL) binocular head, and you don't need anyt...
by pdxhiker
Wed Nov 23, 2016 5:50 pm
Forum: Microscopes and optics
Topic: Zeiss Optovar or Intermediate Pol tube
Replies: 5
Views: 1292

Zeiss Optovar or Intermediate Pol tube

Hi - I have a Zeiss Standard which I want to upgrade to DIC gradually, I understand that both Optovar and Intermediate Pol tube piece has slot for inserting analyzer. But I also think Optovar has other features (magnification, bertrand lens etc). Can I skip buying Intermediate Pol and and get an Opt...
by pdxhiker
Mon Nov 21, 2016 8:29 pm
Forum: Microscopes and optics
Topic: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope
Replies: 3
Views: 901

Re: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope

Update: I found this company has Olympus bard objective manufactured for this scope, its 1.5X, so should bump up the magnification to 15-60X without changing the eye piece 10x 23mm FOV. Any thoughts if this will reslut in just empty magnification or will keep the resolution, I can't find optical dat...
by pdxhiker
Mon Nov 21, 2016 7:23 pm
Forum: Microscopes and optics
Topic: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope
Replies: 3
Views: 901

Re: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope

thank you, correct I see many offered on ebay (mainly Amscope0 could you please provide some options on which one is proved to be a good one
by pdxhiker
Mon Nov 21, 2016 5:37 pm
Forum: Microscopes and optics
Topic: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope
Replies: 3
Views: 901

LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope

I purchased a used Olympus VMZ Microscope with 4x Zoom, it came with a external illuminator of 18W, does any one know what alternative light source, 1.5x Zoom and camera adapter works for this scope.
by pdxhiker
Tue Nov 08, 2016 4:01 pm
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

I fully dismantled the lamphouse and noticed the concave mirror was not fully seated in the two bronze metal holders gripping it, now the question I'll get to them closer and post another picture.
by pdxhiker
Tue Nov 08, 2016 3:33 pm
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

I tried fixing the lamphouse and this is what It looks like right now.
by pdxhiker
Tue Nov 08, 2016 1:20 am
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

I think you are describing two different problems, which although related are adjusted independently. If you follow the directions in the manual you should be able to adjust the mirror so that the two filament images are visible. The screws for the adjustments are on the back side of the lamp house...
by pdxhiker
Mon Nov 07, 2016 5:02 pm
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

Have you checked inside the lamp house to determine that there is a mirror ? I have seen a few that have no reflecting mirror and the single image is all that you get. A single filament image does not fill the field as well, but does work. Once you have solved the lamp filament issue you can begin ...
by pdxhiker
Mon Nov 07, 2016 3:24 pm
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

I think you are describing two different problems, which although related are adjusted independently. If you follow the directions in the manual you should be able to adjust the mirror so that the two filament images are visible. The screws for the adjustments are on the back side of the lamp house...
by pdxhiker
Mon Nov 07, 2016 3:20 pm
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Re: Fixing Zeiss 100 Illuminator Concave mirror focus

Hvae tried those processes, here is what I see turning the light beam from the lamp two meters.
by pdxhiker
Mon Nov 07, 2016 3:02 am
Forum: Microscopes and optics
Topic: Fixing Zeiss 100 Illuminator Concave mirror focus
Replies: 12
Views: 1834

Fixing Zeiss 100 Illuminator Concave mirror focus

Last spring I purchased a Zeiss Standard scope with phase contrast condenser, due to family and work issues, I couldn't test it for correctness. I had difficulties getting Kohler illumination, not matter what I did, there was too much light "bleed" where the iris never got sharp or had a halo around...
by pdxhiker
Thu Apr 07, 2016 4:13 pm
Forum: Beginner's corner
Topic: Is National Optical 162 Scope keeper?
Replies: 13
Views: 2223

Re: Is National Optical 162 Scope keeper?

Hello All - thanks for all the suggestions, I returned the National Optical Scope and ordered a used Zeiss Standard 18 model.
by pdxhiker
Thu Apr 07, 2016 4:01 pm
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Re: Want to Buy Phase Contrast Mircoscope

Update: After going back and forth on the setup. I ended up buying a used Zeiss Standard 18 setup. Details to follow once the delivery of scope is complete.
by pdxhiker
Fri Apr 01, 2016 2:31 pm
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Re: Want to Buy Phase Contrast Mircoscope

thanks everyone, I have a fair understanding what I need. Since I can't send out PM's this thread is the only place I can communicate :)
by pdxhiker
Wed Mar 30, 2016 2:07 pm
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Re: Want to Buy Phase Contrast Mircoscope

thanks Dale.

I'm wondering what is the difference between this AO 10, AO 20, AO 110 and other AO series. Did you buy this scope as-is with all the components or upgraded it to Phase Contrast post purchase.
by pdxhiker
Wed Mar 30, 2016 1:07 am
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Re: Want to Buy Phase Contrast Mircoscope

Dale - can you please post the pictures/details and price.
by pdxhiker
Tue Mar 29, 2016 5:44 pm
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Re: Want to Buy Phase Contrast Mircoscope

For anyone to help you with that, you would need to provide more details. Where are you located? There might be someone here, who is fairly nearby and can assist you, with either a microscope or the name of a supplier. I guess, since you are a novice, when you say accessories, you are talking about...
by pdxhiker
Tue Mar 29, 2016 2:44 pm
Forum: For forum members who want to buy and sell equipment
Topic: Want to Buy Phase Contrast Mircoscope
Replies: 21
Views: 3312

Want to Buy Phase Contrast Mircoscope

Looking for a quality PHC microscope and accessories to start the Hobby. Binocular or Trinocular head is preferred.