Search found 121 matches
- Thu Sep 23, 2021 8:01 pm
- Forum: Pictures and Videos
- Topic: You gotta do this.
- Replies: 10
- Views: 2858
Re: You gotta do this.
Hello and thanks for the idea! I collected some fern (appears to be Polypodium vulgare ) spores in summer but put my hands on them only yesterday. Here's a quick photo of them with COL illumination, CZJ 16x Apo objective, mf-Projectiv 3,2x, Nikon D5200 camera on NfPk microscope. Single frame, also I...
- Fri Sep 17, 2021 7:40 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: -
- Replies: 14
- Views: 6535
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- Mon Sep 13, 2021 5:12 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: For sale: Carl Zeiss Jena apochromat 60x w/ correction collar + others
- Replies: 8
- Views: 2894
- Mon Sep 13, 2021 8:20 am
- Forum: For forum members who want to buy and sell equipment
- Topic: For sale: Carl Zeiss Jena apochromat 60x w/ correction collar + others
- Replies: 8
- Views: 2894
Re: For sale: Carl Zeiss Jena apochromat 60x w/ correction collar + others
It's both hard to find and gives really good picture, especially for nearly 100 years old lens (I think it was developed in 1920's)DevonianSea wrote: ↑Mon Sep 13, 2021 7:02 amWhen you say "infamous", is it because they're hard to find, or are there different reasons?
- Sun Sep 12, 2021 6:09 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: For sale: Carl Zeiss Jena apochromat 60x w/ correction collar + others
- Replies: 8
- Views: 2894
Re: For sale: Carl Zeiss Jena apochromat 60x w/ correction collar + others
Hello, the 60/0.95 is indeed a dry objective, similar to infamous 40/0.95 but much harder to find wspecially in good condition
- Sun Sep 12, 2021 6:08 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Obscure projection microscope for DIY lovers for sale
- Replies: 5
- Views: 2819
- Sat Jul 31, 2021 7:13 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Obscure projection microscope for DIY lovers for sale
- Replies: 5
- Views: 2819
- Mon Jul 26, 2021 3:40 pm
- Forum: Miscellaneous
- Topic: Looking for a good platform for (text-based) blog
- Replies: 2
- Views: 2032
Looking for a good platform for (text-based) blog
Sometimes, and rather often, I think about starting a blog about different things, including metalworking, microscopy, collecting, etc. However, I can't think of suitable platform. Youtube is obvious choice, however I'm not really into video-making, I'd rather prefer text'n'images, old-fashioned way...
- Sun Jul 25, 2021 8:59 pm
- Forum: Illumination Techniques
- Topic: Positive Phase Contrast Objective Phase Plates
- Replies: 53
- Views: 17495
Re: Positive Phase Contrast Objective Phase Plates
There also was similar Carl Zeiss Jena device, called Interphako. The principle is relaying objective exit pupil further in order to place phase plate there, so basically it is phase contrast for non-phase objectives. Also there was LOMO КФ-3 device for МИМ-8 metallographic microscope with the same ...
- Sun Jul 25, 2021 7:06 am
- Forum: Home-made microscope adaptations
- Topic: Would it work or just catch on fire?
- Replies: 5
- Views: 2976
Re: Would it work or just catch on fire?
It is also worth mentioning that some mineralogists mention "wrong" interference colours with led lighting on polarizing microscope.
- Fri Jul 23, 2021 7:08 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3073949
Re: DIC Question
By the way, why didn't anyone thought about simply polishing that damn UV coat away with fine cerium oxide or other polish? I've heard that photographers polish away damaged lens coating from cheap lens this way and it works well.
- Wed Jul 21, 2021 11:02 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3073949
Re: DIC Question
I have only one question, how to find the back focal plane? https://www.researchgate.net/post/Is_there_a_rule_of_thumb_to_determine_the_back_focal_plane_of_objective_lens The method suggested by Paolo Pozzi works really well: shine a laser pointer through the objective and measure the size of the p...
- Wed Jul 21, 2021 8:09 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3073949
Re: DIC Question
Very interesting subject, will definetely give it a try. I have some experience with metalworking, although at the monent I don't have access to milling machines and lathes. Also I know some people who make scale models of buildings and they must have lots if different polycarbonate sheets. I've rea...
- Tue Jul 20, 2021 6:46 pm
- Forum: My microscope
- Topic: How does a collection happen?
- Replies: 11
- Views: 5961
Re: How does a collection happen?
What about cross-country travel (almost 2500 km in total) to buy long wanted microscope because seller refused to ship it?
- Fri Jul 16, 2021 7:15 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Obscure projection microscope for DIY lovers for sale
- Replies: 5
- Views: 2819
Re: Obscure projection microscope for DIY lovers for sale
Also put it on Ebay, they seem like really nice guys, helped me a lot recently - https://www.ebay.com/itm/284374074977
- Thu Jul 15, 2021 8:57 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Obscure projection microscope for DIY lovers for sale
- Replies: 5
- Views: 2819
Re: Obscure projection microscope for DIY lovers for sale
That looks very nice! it has the objective built-in right? Or does it go into the eyepiece tube of a stand? Objective is built in, threaded on the end of steel tube, shown as [5] on the plans. I had an idea to try to fit some macro objectives instead but never tried it because it already works good
- Wed Jul 14, 2021 10:01 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Obscure projection microscope for DIY lovers for sale
- Replies: 5
- Views: 2819
Obscure projection microscope for DIY lovers for sale
G'day everyone, I have once again decided to sell some less-used equipment in order to fund new projects. Today I have a rather special thing, a Soviet measuring microscope with projection screen, originally used for tool setting for precision CNC machines. Manufactured by FED (ФЭД) plant, more comm...
- Tue Jun 29, 2021 11:37 am
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
- Mon Jun 28, 2021 11:29 am
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
Re: Selling Rare LOMO AU-26 Optovar Binocular Head
Hello Dmi3n, I have an optovar already - but thank you for making an offer. I hope that you can sell this fine item, since they are hard to come by. I realise that posting is expensive, and Ebay fees take a huge chunk of your profit - so maybe you can sell here privately to someone looking for this...
- Thu Jun 24, 2021 12:51 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
Re: Selling Rare LOMO AU-26 Optovar Binocular Head
With £60 postage to UK (plus import duty) it's way too costly, so that's a massive potential market closed to you. May consider reducing postal cost, or selling price. Hello, are you interested in buying this head? I can make a discount, how much can you pay for the head + shipping? Maybe we can ma...
- Mon Jun 21, 2021 1:37 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
Re: Selling Rare LOMO AU-26 Optovar Binocular Head
Still not sold
- Sat Jun 19, 2021 7:57 am
- Forum: Microscopes and optics
- Topic: Jena oo
- Replies: 31
- Views: 6983
Re: Jena oo
You mean Nf's 5-position revolver? It will fit later Microval stands and some LOMO stands (but for them it will need some modification), can't say anything about others.
- Sat Jun 19, 2021 7:54 am
- Forum: Microscopes and optics
- Topic: Jena oo
- Replies: 31
- Views: 6983
Re: Jena oo
Also I have two spare Auflichtkondensors but they are in bad condition and one of them is currently disassembled. Yes, one question: what's wrong with those Auflichkondensor? I see plenty of their objectives for sale, but no Auflichtkondensor. All delicate or defective? Doesn't seem too delicate, t...
- Sat Jun 19, 2021 6:31 am
- Forum: Microscopes and optics
- Topic: Jena oo
- Replies: 31
- Views: 6983
Re: Jena oo
Also I have two spare Auflichtkondensors but they are in bad condition and one of them is currently disassembled.
- Sat Jun 19, 2021 6:27 am
- Forum: Microscopes and optics
- Topic: Jena oo
- Replies: 31
- Views: 6983
Re: Jena oo
I have aforementioned Auflichtkondensor Pol and Nf stand, with 4/10/25/63/100 Planachromat Pol objectives and 25/0,65 Planapochromat, all for infinity/no coverslip, maybe I can answer any questions about it
- Sat Jun 19, 2021 6:21 am
- Forum: Microscopes and optics
- Topic: Lomo specs.
- Replies: 2
- Views: 885
Re: Lomo specs.
Infinite - corrected LOMO planapos are for reflected light only if I recall it correctly. So they will work properly only with no coverslip. Don't know if they are any good, nobody uses them even here in Russia, at least never seen any posts.
- Sat Jun 19, 2021 6:18 am
- Forum: Microscopes and optics
- Topic: Lomo specs.
- Replies: 2
- Views: 885
Re: Lomo specs.
Hello. I really recommend you to stay away from 160 ones at least.They need special eyepieces with heavy compensation, have low contrast and are very prone to glass separation, not only delamination but the glass itself is often corroded over time. Also the corrected part of field must be small. LOM...
- Sat Jun 12, 2021 6:44 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
- Sat Jun 05, 2021 6:21 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: [SOLD] Rare LOMO AU-26 Optovar Binocular Head
- Replies: 9
- Views: 3777
- Wed Jun 02, 2021 2:27 am
- Forum: Microscopes and optics
- Topic: Vanox dovetail
- Replies: 13
- Views: 3284
Re: Vanox dovetail
My friend has one Vanox sitting around, absolute beast of a microscope, but I don't know if it's the needed model, binocular head seems built-in, only the camera ports have dovetails.