Search found 180 matches

by Oktagon
Tue Jun 06, 2017 3:34 pm
Forum: My microscope
Topic: Leitz Wetzlar Black Enamel: Which Model?
Replies: 4
Views: 2393

Re: Leitz Wetzlar Black Enamel: Which Model?

I think it is Dialux Pol-S
by Oktagon
Sun Apr 09, 2017 8:00 pm
Forum: Important announcements
Topic: Zeiss Opton Microscope CMOS Camera adapter
Replies: 1
Views: 3767

Re: Zeiss Opton Microscope CMOS Camera adapter

Another owner of beautiful Zeiss Universal !!! Great instruments, adaptable to just about anything (hence the name). ***. Actually I just looked at your photo, and your microscope is not Universal. It is Photomicroscope III with "special illuminator", a very expensive option which allowed use of 200...
by Oktagon
Thu Mar 30, 2017 6:10 pm
Forum: My microscope
Topic: From Russia With Love
Replies: 53
Views: 12642

Re: From Russia With Love

I enjoy reading this thread! My microscopy experience started with LOMO units back in the late 80's in USSR! In fact I actually brought Biolam with me to the US. I had it equipped as much as Biolam stand would handle, including rotating stage with CT-12, MFN-11 photo head with "optovar", OI-35 illum...
by Oktagon
Thu Mar 30, 2017 3:46 am
Forum: Microscopes and optics
Topic: Lubricants for the LOMO Biolam
Replies: 1
Views: 876

Re: Lubricants for the LOMO Biolam

Neutral petroleum jelly. This is what has been used in Russia for decades.
by Oktagon
Thu Mar 30, 2017 3:28 am
Forum: Beginner's corner
Topic: camera -> microscope connection
Replies: 27
Views: 4713

Re: camera -> microscope connection

ISO setting as low as camera will go (usually 50 or 100), and set exposure time to over a second. Thanks for your good advice- I will take it. Just one question- how is it possible to take pictures of living, moving things with such a long exposure time? thanks again[/quote] It is not. This is for ...
by Oktagon
Sun Mar 19, 2017 6:18 pm
Forum: Beginner's corner
Topic: camera -> microscope connection
Replies: 27
Views: 4713

Re: camera -> microscope connection

It is relatively easy to phocus digital camera using almost any adapter, whether with projective, or direct coupling. The trick is to achieve confocality with your eyepieces, assuming you are using trinocular head. The idea is to be able to center and focus image looking through eyepieces and captur...
by Oktagon
Sun Mar 05, 2017 2:31 am
Forum: My microscope
Topic: My Scopes and my source of Pond-Life...
Replies: 10
Views: 3766

Re: My Scopes and my source of Pond-Life...

That's a lovely looking early black WL and a serious ICM-405. I have very similar collection, although my primary user is Universal. I find the ergonomics of ICM-405/IC-35 to be a little strange, with stage controls on semi-flexible stack overlaying focus knob. ICM-405 also requires long WD condense...
by Oktagon
Sat Feb 11, 2017 7:12 pm
Forum: Microscopes and optics
Topic: Best mechanical build on which microscope brand ?
Replies: 10
Views: 1927

Re: Best mechanical build on which microscope brand ?

Almost any German, Swiss and Austrian scoped made perforé 1980's is going to be very high quality instrument, es[eciall it is as made as a research grade scope. Zeus Ultraphots Photomics, Universal, Standard WLS and even GFLs are prime examples. Leitz Ortholux, Orthopplan, Wild M20. Make your pick!
by Oktagon
Fri Feb 03, 2017 3:40 am
Forum: Microscopes and optics
Topic: this Zeiss
Replies: 4
Views: 1264

Re: this Zeiss

MicroInspector,

This is a photo of a typical toy Chinese microscope available in any department store. It is a very poor quality toy. The black tube on tope is use to top off immersion oil. You need about a liter for it to work properly.
by Oktagon
Fri Feb 03, 2017 3:35 am
Forum: My microscope
Topic: New Lens
Replies: 11
Views: 3702

Re: New Lens

Very nice! I have the same objective permanently sitting on my Universal, but no DIC slide. I use single arrow setup, and although it is not perfectly matched with 63 1.4 plana pour, it works.
You have very nice black WL sand too :)
by Oktagon
Tue Jan 10, 2017 8:54 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Standard WL for sale
Replies: 2
Views: 1045

Re: Zeiss Standard WL for sale

Yes.

Pics are easy. I just have to get to my home lab tonight.
It is a nice clean stand and I will configure it for the buyer depending on what they will want to do with it.
by Oktagon
Tue Jan 10, 2017 7:37 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Standard WL for sale
Replies: 2
Views: 1045

Zeiss Standard WL for sale

I'm considering selling one of my Zeiss WL scopes. WL base on base extender (will work with Universal and Photomic illumionators). Rotating mechanical stage. All mechanics are smooth and aligned. No dry lubricant. Configuration will depend on requirements, but will include 5 objectives, mostly achro...
by Oktagon
Mon Jan 09, 2017 6:45 am
Forum: Microscopes and optics
Topic: How to make an electron microscope ?
Replies: 7
Views: 1353

Re: How to make an electron microscope ?

Forget about SEM. I think much better idea is to buy a small PWR (Pressurized Water Reactor), or LMCR (Lequid Metal-Cooled Reactor) and compete with National Grid by selling electrical power to your neighbors! You can buy one surplus from a decommissioned Russian submarine! Just put it in your basem...
by Oktagon
Mon Jan 09, 2017 6:16 am
Forum: Microscopes and optics
Topic: what is the cheapest way to get a quality dic system?
Replies: 19
Views: 3319

Re: what is the cheapest way to get a quality dic system?

You can assemble excellent Zeiss DIC system for TL for under $1000 if you know what you are doing, patient, and are dealing with honest sellers who will not stick you with delaminates optics.
by Oktagon
Fri Dec 16, 2016 5:37 pm
Forum: My microscope
Topic: New Purchase Bestscope Model BS-2080 Chinese vs Big 5
Replies: 67
Views: 13725

Re: New Purchase Bestscope Model BS-2080 Chinese vs Big 5

I've been following this thread for a while, and I think my parciality to a particular brand of scopes is well known here. Having said that, in my opinion off-brand microscopes are not not necessarily bad, but they are not consistent. Either there is a problem with QC, or the materials used do not p...
by Oktagon
Sat Nov 26, 2016 1:52 pm
Forum: Microscopes and optics
Topic: Zeiss Optovar or Intermediate Pol tube
Replies: 5
Views: 1409

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 anyth...
by Oktagon
Thu Nov 24, 2016 2:51 am
Forum: Microscopes and optics
Topic: AmScope T690C-PCT200-PL sufficient for spirochaete viewing?
Replies: 29
Views: 3686

Re: AmScope T690C-PCT200-PL sufficient for spirochaete viewing?

What started as a somewhat misguided question about equipment had turned into a debate about LBA and its merits. I agree with Mr. Tom Jones regarding merits of LBA. While ELISA and Western Blots can occasionally produce false-negatives, the statement regarding sensitivity of PCR is highly inaccurate...
by Oktagon
Tue Nov 22, 2016 9:49 pm
Forum: Collecting microscopes and slides
Topic: Microscope storage
Replies: 13
Views: 2741

Re: Microscope storage

Construction grade trash bags cut to size work well for me. I store my scopes in climate controlled environment, so it does not get colder than 18C and warmer than 25C. Not more than 65% humidity. No problems in decades.
by Oktagon
Tue Nov 22, 2016 6:31 pm
Forum: Microscopes and optics
Topic: AmScope T690C-PCT200-PL sufficient for spirochaete viewing?
Replies: 29
Views: 3686

Re: AmScope T690C-PCT200-PL sufficient for spirochaete viewing?

Dear Dwkst5: You mentioned the fact that you are pre-med student (I'm assuming undergrad Bio/Biochem major or track). The project you are undertaking is quite complex, as was pointed out earlier. Also, if I understand your posts correctly, you are attempting to self-diagnose. This is probably the mo...
by Oktagon
Tue Nov 22, 2016 6:17 pm
Forum: My microscope
Topic: What you can get for under $100
Replies: 35
Views: 7453

Re: What you can get for under $100

charlie g wrote:As courtesy to this thread of yours...I better fast check if it's your thread Oktagon...I'll dig out the illuminator...post pics of it here (I think it's your thread!). charlie guevara

Thank you!
by Oktagon
Mon Nov 21, 2016 6:37 pm
Forum: Microscopes and optics
Topic: LED/Fluorescence Light Source & 1.5x Zoom & Camera adapter for Olympus VMZ Stereo Scope
Replies: 3
Views: 980

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

YOu can buy allot of different fiberoptic/LED ring illuminators. They are all over the price range, from $25 to $$$. They all work pretty well.
by Oktagon
Sun Nov 20, 2016 11:31 pm
Forum: My microscope
Topic: Oldest and newest
Replies: 1
Views: 1584

Re: Oldest and newest

Axioscopes are good machines. You have what looks like late 80s or early 90s sample. The first series share material and craftsmanship quality with late gray line scopes. Very servisable, but I lament the internal power source for the illiminators. I prefer the external units due to ease of repairs ...
by Oktagon
Sun Nov 20, 2016 11:20 pm
Forum: Microscopes and optics
Topic: Metallurgical microscope for using with a laser
Replies: 5
Views: 1376

Re: Metallurgical microscope for using with a laser

You are looking for highly specialized and rather expensive instrument. Laser cutting and welding microscopes tend to runner $$$$$$ and used are still $$$$$. I would go to a supplier who is specialyzing in microscopes for wafer cutting and other applications in semiconductor industry. I would not ju...
by Oktagon
Sun Nov 20, 2016 4:53 pm
Forum: My microscope
Topic: What you can get for under $100
Replies: 35
Views: 7453

Re: What you can get for under $100

Charie G, The mirror is mounted in the plug with central hole in the base of the microsecope, and yes, I am interested in the substage illuminator.
by Oktagon
Sat Nov 19, 2016 1:51 am
Forum: My microscope
Topic: What you can get for under $100
Replies: 35
Views: 7453

Re: What you can get for under $100

This article is a main source for many when it comes to th evolution of Zeiss Standard series. Many years ago I owned an orifinal Zeiss L stand from early 40's. For that time it was revolutionary design, as most scopes of that period relied on straight tubus and any inclination was achieved through ...
by Oktagon
Fri Nov 18, 2016 9:48 pm
Forum: Important announcements
Topic: 403 Forbidden Error
Replies: 13
Views: 18534

Re: 403 Forbidden Error

I had this error for two days accross multiple networks, platforms and browsers, but today it has magically disappeared.
by Oktagon
Wed Nov 16, 2016 5:14 am
Forum: My microscope
Topic: What you can get for under $100
Replies: 35
Views: 7453

Re: What you can get for under $100

Charlie g, I'm con-US, located in Boston MA. Your stand is Zeiss Junior. It is basically the same as GFL, sans removable stage and slightly different coarse focusing knobs. You do have a very nice illuminator, while mine came with simple mirror, and I have to use external illuminator, like in the 50...
by Oktagon
Wed Nov 16, 2016 5:04 am
Forum: My microscope
Topic: Reichert Zetopan - converted to infinity optics.
Replies: 16
Views: 5049

Re: Reichert Zetopan - converted to infinity optics.

Firstly, infinity objectives are if anything , more complicated than 160mm objectives. This would be dependent on individual designs of course but the reason that both Leica and Nikon have both based their current objective designs on a 25mm diameter and in the case of Nikon at least, a 60mm parfoc...
by Oktagon
Tue Nov 15, 2016 11:37 pm
Forum: Microscopes and optics
Topic: Adding laser to Zeiss Photomic III for Raman
Replies: 4
Views: 1436

Re: Adding laser to Zeiss Photomic III for Raman

Wow! That's an interesting progect! I wish I though of something like this. So, I think the forst thing is to simplify the light path by closing the side lever on the tube to prevent light from going through internal stand path. You might be better off with Universal in this case (and you can just b...