Search found 20 matches

by Dmi3n
Thu May 14, 2020 9:45 am
Forum: For forum members who want to buy and sell equipment
Topic: Selling very rare pre-war Zeiss incident light illuminator
Replies: 3
Views: 447

Selling very rare pre-war Zeiss incident light illuminator

Once again I decided to sell some of my less used collection pieces. All the info and photos are on Ebay, link - https://www.ebay.com/itm/283883561737
by Dmi3n
Sun Mar 01, 2020 8:28 pm
Forum: For forum members who want to buy and sell equipment
Topic: LOMO microscope hunting for you
Replies: 12
Views: 7073

Re: LOMO microscope hunting for you

PZO system is called DIC after Pluta as I recall, he was one of Nomarski's collegues or students. Maybe you can find his original article on the net.
by Dmi3n
Tue Feb 25, 2020 12:50 pm
Forum: Pictures and Videos
Topic: A close up of a tardigrades claws!
Replies: 10
Views: 3435

Re: A close up of a tardigrades claws!

Very nice video and very nice claws indeed =)
by Dmi3n
Sat Feb 22, 2020 9:38 am
Forum: For forum members who want to buy and sell equipment
Topic: LOMO microscope hunting for you
Replies: 12
Views: 7073

Re: LOMO microscope hunting for you

Hi Dmi3n, Seems I can't reply via PM (registered recently, can receive but not send PM). Any way, thanks for the info, and yes, please send me the PDF that you have for the Biolam P-1. The model sold in the US specifically mentioned DIC as an option for it. Then there's this: https://i.ebayimg.com/...
by Dmi3n
Tue Feb 18, 2020 8:23 am
Forum: For forum members who want to buy and sell equipment
Topic: LOMO microscope hunting for you
Replies: 12
Views: 7073

Re: LOMO microscope hunting for you

Hi Dmi3n, My first microscope was one of those ubiquitous BIOLAMs, which I still have and use. Recently I aquired a few more LOMO models that I'm restoring: a Metam-IQ , a Laboroscope and an Invertoscope (I'm quite fond of this last one). I've been keeping an eye on Ebay but some parts are a bit ha...
by Dmi3n
Mon Feb 17, 2020 6:41 pm
Forum: Microscopes and optics
Topic: Leitz 80x 1.30 Petrographic objective
Replies: 6
Views: 1854

Re: Leitz 80x 1.30 Petrographic objective

So I guess the explanation for the ultra-short objective is to provide space for both the epi-illuminator, and large rock samples? Yes, you are right, this "pancake" design was developed to save vertical space for massive illuminator and sample. This is an immersion objective. There can be no savin...
by Dmi3n
Mon Feb 17, 2020 12:12 pm
Forum: Microscopes and optics
Topic: Leitz 80x 1.30 Petrographic objective
Replies: 6
Views: 1854

Re: Leitz 80x 1.30 Petrographic objective

viktor j nilsson wrote:
Mon Feb 17, 2020 11:24 am

So I guess the explanation for the ultra-short objective is to provide space for both the epi-illuminator, and large rock samples?
Yes, you are right, this "pancake" design was developed to save vertical space for massive illuminator and sample.
by Dmi3n
Wed Feb 12, 2020 8:55 am
Forum: Introduce yourself
Topic: Greetings from a new member!
Replies: 9
Views: 4318

Re: Greetings from a new member!

Hello Dmitry-you have a healthy range of hobbies! I have one Lomo 85x water immersion and it’s pretty good-the front element is so tiny-oh I have the 30x Fluor water with iris-that’s a really nice objective. Regards ross Hello! 30x/0.90 is a really nice and hard to find even here, in Russia. You al...
by Dmi3n
Tue Feb 11, 2020 2:59 pm
Forum: Introduce yourself
Topic: Greetings from a new member!
Replies: 9
Views: 4318

Re: Greetings from a new member!

Hello and welcome to the forum! We are always glad to see new LOMO people here, at least I am. CE Hello, thanks for the warm welcome :) Honestly, I prefer Carl Zeiss Jena microscopes over their LOMO analogues, but there are some things that LOMO had which Zeiss hadn't, for example the infamous Lyum...
by Dmi3n
Mon Feb 10, 2020 8:02 pm
Forum: For forum members who want to buy and sell equipment
Topic: LOMO microscope hunting for you
Replies: 12
Views: 7073

LOMO microscope hunting for you

Greetings to everyone. I live in Russia and there are many cheap LOMO microscopes available for me as I have some contacts in institutes and univesrsities who ocasionally upgrade their gear so old but still good (often they were on the shelf 99% of time) microscopes are sold dirt cheap or even throw...
by Dmi3n
Sun Feb 09, 2020 10:09 pm
Forum: Microscopes and optics
Topic: 23.2 vs 30mm
Replies: 38
Views: 8057

Re: 23.2 vs 30mm

There is a formula to calculate apparent field of view of eyepiece in degrees but I cant't find it in my notes. If I find it I'll post it here. I remember that it has magnification*FOV in mm in the upper part so for example 12,5x*16mm eyepiece will have wider field than 10x*16mm.
by Dmi3n
Fri Feb 07, 2020 12:56 pm
Forum: Microscopes and optics
Topic: 23.2 vs 30mm
Replies: 38
Views: 8057

Re: 23.2 vs 30mm

Probably the struggle with seeing one image instead of two doesn't have to do anything with field of view of eyepieces. It looks like binocular head fallen out of adjustment or eyepieces had bad centering. I had old Zeiss Lumipan microscope with only one pair of eyepieces which were "eye of the need...
by Dmi3n
Fri Feb 07, 2020 12:22 pm
Forum: Microscopes and optics
Topic: Lomo ML-3
Replies: 7
Views: 1597

Re: Lomo ML-3

Good afternoon. If you still need help PM me. I know Russian and English.
by Dmi3n
Fri Feb 07, 2020 12:18 pm
Forum: Microscopes and optics
Topic: Zeiss ocular projective
Replies: 7
Views: 2553

Re: Zeiss ocular projective

This is Carl Zeiss Jena (ausJena was their brand for selling outside Eastern block countries for some time) eyepiece for projection microscope called Pictoval (you can find some info and pictures on the internet).
by Dmi3n
Fri Feb 07, 2020 12:10 pm
Forum: Microscopes and optics
Topic: Centering Lomo Min-4 Polarizing Stage
Replies: 3
Views: 1015

Re: Centering Lomo Min-4 Polarizing Stage

Good afternoon. As far as I know, LOMO MIN polarising microscopes don't have centerable stages. The objective and the condensor are centered instead according to lab technician who worked with MIN-8 (newer model with same stage). If you want I can try to find Russian manual for MIN-4 and translate p...
by Dmi3n
Thu Feb 06, 2020 5:59 pm
Forum: Introduce yourself
Topic: Greetings from a new member!
Replies: 9
Views: 4318

Re: Greetings from a new member!

Hi Dmitry, welcome to the forum! The NF is a very nice microscope, a true classic. Have you actually used your micro hardness tester? I would be very interested to see it's application. Once I bought a big box of microscope parts and it included a micro hardness testing unit for the NF, but since i...
by Dmi3n
Thu Feb 06, 2020 4:39 pm
Forum: Introduce yourself
Topic: Greetings from a new member!
Replies: 9
Views: 4318

Greetings from a new member!

Good evening everyone! My name is Dmitry, I am 20 years old microscope enthusiast with interests in jewelry, metalworking, chemistry and art. I live in Kaliningrad, Russia (almost Europe). There are not so many microscopists here in Russia so I decided to join this forum. My passion is collecting Ca...