Search found 37 matches
- Wed Dec 09, 2020 2:42 pm
- Forum: Microscopes and optics
- Topic: carl zeiss jena coarse focus mechanism?
- Replies: 6
- Views: 4491
Re: carl zeiss jena coarse focus mechanism?
Good day MWK. Thanks for your January 2020 post regarding my Carl Zeiss Jenna focusing mechanism. I acquired a second arm stand for this microscope because I could not solve the slippage problem I was having with respect to focus. Improperly greased by me perhaps? This is now installed but I can't f...
- Tue Feb 26, 2019 1:15 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
I spoke with the owner of the Labequip.com company in Markham, Ontario, Canada. He says he has six Carl Zeiss Jena Ergavals for sale and that he had them serviced. He's selling them for $517 cdn (344 euros) + tax. Achromat objectives and no phase contrast. The quality of the servicing is unknown. No...
- Mon Feb 25, 2019 2:34 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Bob. If this is the same Zeiss microscope you're talking about, Fischer Scientific in Canada is selling Carl Zeiss Primo Star microscopes starting at $2,961 (~1900 Euros). https://www.fishersci.ca/shop/products/carl-zeiss-primo-star-hal-led-microscopes-full-k-hler-3/p-4894171 I paid $275 for my phas...
- Sun Feb 24, 2019 1:55 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: equivalent quality?
MicroBob. I have come across an instrument shop in Central Canada that claims to have 12 Carl Zeiss Jena Ergaval microscopes in stock. If one were deliberating about the merits of purchasing one of these old microscopes compared to a new one, how would one rate the quality of the 1970s vintage Ergav...
- Sun Feb 17, 2019 10:33 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Cost-benefit, right! Art or something else? I wouldn't mind trying some art particularly during the winter months when there isn't much beekeeping to be done. But otherwise my primary interest at the moment is pollen identification/melissopalynology and Nosema spp. diagnostics (spore counts). Images...
- Sun Feb 17, 2019 12:29 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Lovely images there on the German site. Big difference in image quality. These are much better than most of the LM images I see in the pollen ID texts and online data bases. That gives me something to strive for. Thanks!
- Sat Feb 16, 2019 12:32 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
MicroBob. I tried rummaging about on this BBS looking for criteria to assess the quality of microscope photos. Nothing jumped out at me during the several minutes I spent at it. What criteria do you use to assess image/photo quality? What makes the different between a poor image and an excellent one?
- Fri Feb 15, 2019 3:46 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Re. microphotography set-up for Carl Zeiss Jena Ergaval microscope connection to a Canon Rebel EOS camera. The final piece of my microphotography setup arrived yesterday so I set to work quickly to get it all operational. Here’s some photos of the setup and a couple of photos of pollen, probably whi...
- Fri Dec 28, 2018 11:40 pm
- Forum: Microscopes and optics
- Topic: carl zeiss jena coarse focus mechanism?
- Replies: 6
- Views: 4491
Re: carl zeiss jena coarse focus mechanism?
Thanks MicroBob and Hobbyst46 for your replies. Yeh, I heard that the Zeiss Jena microscopes had "Russian tank grease" that hardened like glue. I have been using heat to help loosen up the badly stuck parts. The coarse focus is fairly well loosened up now, but not completely. But the new problem is ...
- Fri Dec 28, 2018 10:42 am
- Forum: Microscopes and optics
- Topic: carl zeiss jena coarse focus mechanism?
- Replies: 6
- Views: 4491
carl zeiss jena coarse focus mechanism?
Do any of you have experience dismantling, cleaning and greasing the coarse focus mechanism in a Carl Zeiss Jena Ergaval or Amplival microscope? I can't figure out how to completely dismantle the mechanism, and would appreciate advice re. how to proceed further than what you see in the appended phot...
- Thu Nov 22, 2018 10:56 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
I heard back from Rene Prill by email. He confirms use of a pancake lens, and says he tried a Canon EF40 F2,8 STM and the Pentax M 40 F2,8. He has kindly offered to provide more details shortly. As far as I can tell, there is no amateur-hobbyist microphotography community in my part of Canada (Newfo...
- Wed Nov 21, 2018 11:58 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Thanks Bob. That gets me closer to the destination...
- Wed Nov 21, 2018 6:31 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Rene Prill posted this image of his microphotography setup on the German forum in August 2018. He looks like he has a pancake lens on his Canon camera plus adapters, and what else? Can you discern what his set up is? He's got this setup on an Ergaval. I guess the key issue is the length of the photo...
- Tue Oct 23, 2018 5:56 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Thanks again Bob. I agree that the first step is to get the microscope working well, and then learn how to use it properly in relation to my primary needs which are Nosema spp. spore counts and pollen analysis. Microphotographic documentation follows thereafter. I don't rush out and buy lots of gear...
- Tue Oct 23, 2018 12:20 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Thank you again for your help, Bob. I have a Canon Rebel EOS T2i digital camera. I'll give serious consideration to the solution you propose. Best wishes. Peter --------------------------------- Your Canon Rebel is a digital Rebel, right? Which one do you have? Most are quite ideal as a microscope c...
- Tue Oct 23, 2018 12:51 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
This post on the German Mikro-Forum has a lot of good links which I shall explore. https://www.mikroskopie-forum.de/index.php?topic=2871.0
- Mon Oct 22, 2018 8:50 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Thank you Bob. I'm thinking of using my Canon EOS Rebel with a bayonet lens mount. I have no idea whether this is feasible. I have some documentation for the Ergaval and will be exploring this matter further in the near future. First steps are to service the microscope. I am waiting for appropriate ...
- Sun Oct 21, 2018 9:20 pm
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Gerd, on the German Mikro-Forum tells me this is not an Amplival microscope. It's an Ergaval. He provided relevant documentation. Thanks Gerd!
- Sun Oct 21, 2018 9:19 pm
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
Re: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
Gerd, on the German Mikro-Forum tells me this is not an Amplival microscope. It's an Ergaval. He provided relevant documentation. Thanks Gerd!
- Sun Oct 21, 2018 9:13 pm
- Forum: Introduce yourself
- Topic: Hello from Newfoundland
- Replies: 7
- Views: 6527
Re: Hello from Newfoundland
Gerd, on the German Mikro-Forum tells me this is not an Amplival microscope. It's an Ergaval. He provided relevant documentation. Thanks Gerd!
- Sun Oct 21, 2018 9:12 pm
- Forum: Microscopes and optics
- Topic: quality of Carl Zeiss Jena Amplival Phv objectives?
- Replies: 7
- Views: 5122
Re: quality of Carl Zeiss Jena Amplival Phv objectives?
Gerd, on the German Mikro-Forum tells me this is not an Amplival microscope. It's an Ergaval. He provided relevant documentation. Thanks Gerd!
- Sat Oct 20, 2018 9:30 pm
- Forum: Microscopes and optics
- Topic: quality of Carl Zeiss Jena Amplival Phv objectives?
- Replies: 7
- Views: 5122
Re: quality of Carl Zeiss Jena Amplival Phv objectives?
I just joined the German Mikro-Forum where I have met several generous people offering to help me with my Carl Zeiss Jena microscope. It appears that the DeepL translation program is better than Google. Here's a comment from Aquarius. Google mistranslated my English text. He didn't buy the microscop...
- Fri Oct 19, 2018 7:17 pm
- Forum: Microscopes and optics
- Topic: quality of Carl Zeiss Jena Amplival Phv objectives?
- Replies: 7
- Views: 5122
Re: quality of Carl Zeiss Jena Amplival Phv objectives?
Thanks for your response and advice, Bob. I just introduced myself properly to the German Mikro-Forum. The 30-048c-1.G AMPLIVAL(T).pdf manual I found online mentions a "aplanatisch-achromatischer Kondensor 1,4" (Google translation? - aplanatic-achromatic condenser 1,4). I don't know if that means th...
- Thu Oct 18, 2018 11:09 am
- Forum: Microscopes and optics
- Topic: quality of Carl Zeiss Jena Amplival Phv objectives?
- Replies: 7
- Views: 5122
quality of Carl Zeiss Jena Amplival Phv objectives?
Does anyone have an opinion on the quality of these Carl Zeiss Jena Amplival Phv objectives (see appended photo)? How do they compare to contemporary objectives?
- Thu Oct 18, 2018 10:06 am
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
Re: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
There is a tiny set screw in the black base of the silver lens ring which I removed. Evidence that the ring twists off/unscrews. I ordered a pin spanner and will remove the brass ring ASAP. We'll see what happens after that. If I can't find a solution, I'll take it to one of the microscope technicia...
- Thu Oct 18, 2018 12:49 am
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
Re: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
Thanks for that advice Bob. The black top lens of the condenser comes off no problem. However, there's another lens underneath that, which is seated on a silver ring (see appended photos). It seems to me that this ring should also unscrew, but it's exceptionally tight. Do you think this silver ring ...
- Wed Oct 17, 2018 6:51 pm
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
Re: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
Thanks for your help. Much appreciated!
- Wed Oct 17, 2018 5:52 pm
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
Re: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
I need to unscrew the brass ring in the condenser assembly. However, finding the appropriate tool for this job is a bit of a challenge. I have various names for this tool, none of which may be accurate. They include "snake-eye spanner," "notched spanner," "drilled spanner," and "retaining ring remov...
- Tue Oct 16, 2018 2:58 pm
- Forum: Microscopes and optics
- Topic: disassembly of Carl Zeiss Jena Amplival phase contrast condenser
- Replies: 11
- Views: 6971
disassembly of Carl Zeiss Jena Amplival phase contrast condenser
Do any of you have experience disassembling a Carl Zeiss Jena Amplival phase contrast condenser (phasenkontrast kondensor) Phv Apl 0,9/e? If so, I'd appreciate getting some disassembly tips. The knurled edge/ring is very stuff which says that the grease has set up quite hard. I'm looking at disassem...
- Mon Oct 15, 2018 11:56 am
- Forum: Camera systems and imaging
- Topic: camera adapter for Carl Zeiss Jena Amplival
- Replies: 31
- Views: 21398
Re: camera adapter for Carl Zeiss Jena Amplival
Thanks Michael and Bob. I've been rummaging around on the Mikroskop Zeiss Jena manuals/instructions website with no luck so far. I'll keep looking.... intensive investigation required.