Search found 413 matches
- Fri Mar 03, 2023 7:27 am
- Forum: Introduce yourself
- Topic: Zeiss Axioplan 2 versus Axioplan 50 ?
- Replies: 1
- Views: 985
Re: Zeiss Axioplan 2 versus Axioplan 50 ?
The Axioplan 2 is the more current one.
- Wed Mar 01, 2023 10:27 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Leitz Orthoplan/Ortholux II parts for sale
- Replies: 9
- Views: 2674
Re: Leitz Orthoplan parts for sale
Eye-pieces and nose-pieces from an Ortholux do not fit an Orthoplan.
Your pricing for the other items is at least ambiguous to put it mildly.
Your pricing for the other items is at least ambiguous to put it mildly.
- Fri Feb 24, 2023 1:41 pm
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
Right. No Darkfield with the Fluotar 40/1.30.
- Thu Feb 23, 2023 10:47 pm
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
Don't compare apples with pears. The PL Apo 40/0.75 is a dry objective while the PL Fluotar 40/1.3 is an Oil one. Resolution is a function of NA. The 40/1.3 provides significant higher resolution than the 40/0.75. A PL Apo is perfectly corrected against chromatic aberrations while the Fluotar is cor...
- Thu Feb 23, 2023 9:56 pm
- Forum: Identification help
- Topic: What are these in Lactic Acid Bacteria solution sample??
- Replies: 5
- Views: 1158
Re: What are these in Lactic Acid Bacteria solution sample??
By far to large for that.
- Fri Feb 17, 2023 5:54 am
- Forum: Important announcements
- Topic: Leitz Orthoplan - How to adjust focus tension?
- Replies: 27
- Views: 38101
Re: Leitz Orthoplan - How to adjust focus tension?
This is hardened grease for sure. There is only one way to fix it: disassemble, remove the old grease, re-grease, assemble. The Orthoplan does NOT have the feature to vary the tension by turning the knobs in opposite directions. Both knobs should turn very easily if in proper condition. This jobs is...
- Mon Feb 13, 2023 5:00 pm
- Forum: Microscopes and optics
- Topic: Leitz Phaco 3 40x oil
- Replies: 5
- Views: 937
Re: Leitz Phaco 3 40x oil
The Leitz PL Apo 40/1.00 Oil, 170/0.1 Phaco 3 is an objective as good as an objective could be. One of my very favorites.
- Wed Feb 01, 2023 7:46 am
- Forum: Microscopes and optics
- Topic: Suggestions for a diy xy mechanical stage for an inverted scope
- Replies: 7
- Views: 2427
Re: Suggestions for a diy xy mechanical stage for an inverted scope
Adapting a mechanical stage depends very much on your needs.
What do you use with your Wilovert?
standard slides?
petri dishes?
well plates?
culture flasks?
other?
For standard slides it is easy. Just adapt some stage found on the market. For the other stuff it is a bit more complicated.
What do you use with your Wilovert?
standard slides?
petri dishes?
well plates?
culture flasks?
other?
For standard slides it is easy. Just adapt some stage found on the market. For the other stuff it is a bit more complicated.
- Wed Feb 01, 2023 7:40 am
- Forum: Microscopes and optics
- Topic: Info on the Hund Wetzlar Wilovert inverted scope
- Replies: 11
- Views: 2408
Re: Info on the Hund Wetzlar Wilovert inverted scope
Good fitting heads are those from white Leitz Dialux or Laborlux microscopes. Their dovetail is 42 mm as well. The oldest Leitz microscope with a 42 mm dovetail was the Dialux 20 from 1978. Everything from a grey (43 mm) or black (41 mm) Leitz will not fit. Same with heads for high-end Leitz stands ...
- Tue Jan 31, 2023 11:55 am
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
The two pictures show two different dark field condensers. The first is a dry one suitable for objectives up to NA of about 0.7. The second one is an oil immersion condenser suitable for objectives with NA up to about 1.0. The handling of this condenser is somewhat tricky as well. Even with the latt...
- Mon Jan 30, 2023 7:52 am
- Forum: Microscopes and optics
- Topic: Info on the Hund Wetzlar Wilovert inverted scope
- Replies: 11
- Views: 2408
Re: Info on the Hund Wetzlar Wilovert inverted scope
I suspect that Wild and Hund objectives share a common heritage. I wonder how Wetzlar fits in this sequence..the names Wetzlar and Leitz are often seen together. Wild was a Swiss microscope make who merged with Leitz. The company acquired other makers like Reichert, American Optical and Bausch & Lo...
- Mon Jan 30, 2023 1:02 am
- Forum: Microscopes and optics
- Topic: Info on the Hund Wetzlar Wilovert inverted scope
- Replies: 11
- Views: 2408
Re: Info on the Hund Wetzlar Wilovert inverted scope
I had personal contact to Micheal Wagner at Hund. m.wagner@hund.de . There was no relationship between Hund and Leitz beyond the fact that both are based in Wetzlar. Hund acquired the microscope maker Will in 1988. This is how they entered the microscope market. You may use other non-PH objectives w...
- Sun Jan 29, 2023 8:48 am
- Forum: Microscopes and optics
- Topic: Info on the Hund Wetzlar Wilovert inverted scope
- Replies: 11
- Views: 2408
Re: Info on the Hund Wetzlar Wilovert inverted scope
Nice instrument! Phase contrast objectives are not interchangeable between manufacturers. You need Hund objectives. Web: www.hund.de Phone: +49 6441 2004-0 They are quite helpful for amateur users, not as arrogant as the big players. Hund parts are frequently found on Ebay, often on the German site ...
- Sun Jan 29, 2023 1:34 am
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
This ploemopak works fine with infinity objectives? Because they seems to be way cheaper and abundant. The Ploemopak is designed to work with standard transient light objectives made for finite tube length 170 or 160 mm. Infinity objectives will not work. To make it worse: In reflected light fluore...
- Sat Jan 28, 2023 7:45 pm
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
EF and NPL objectives work on the Orthoplan. They are just not perfectly plan. If you can live with it, you are fine. About the Ploemopak: You need this for reflected light fluorescence. Your Orthoplan is already configured for transient light fluorescence. Start with that and look for a properly pr...
- Sat Jan 28, 2023 8:28 am
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
EF and NPL objectives are not well suited for the Orthoplan's wide field of view. It needs PL or Plan ones to feature a plan field.
- Fri Jan 27, 2023 10:59 pm
- Forum: Beginner's corner
- Topic: Help with decision on Leitz Orthoplan
- Replies: 51
- Views: 11015
Re: Help with decision on Leitz Orthoplan
Congratulations on your new microscope. The difference in size compared to the Amscope is just the difference between a microscope and a toy. :lol: The 402aa condenser is a very special animal designed for transmitted light fluorescence work. It contains 5 annuli. #1 is standard phaco 1 #2 ist UV ph...
- Wed Jan 18, 2023 9:56 am
- Forum: Illumination Techniques
- Topic: Phase Contrast condensers.
- Replies: 10
- Views: 3011
Re: Phase Contrast condensers.
Leitz made at least one phase contrast condenser with immersion front element, the 403c. But it appears to be a pretty shy animal. I do have a number of oil immersion objectives with phase rings in use. 25/0.75 Oel Phaco 2 Fluoreszenz PL Apo 40/1.0 Oel Phaco 3 63/1.30 Oel Phaco 3 NPL 100/1.30 Oel Ph...
- Thu Jan 12, 2023 8:37 am
- Forum: My microscope
- Topic: What is your microscope
- Replies: 2
- Views: 2535
Re: What is your microscope
Since nobody here knows your requirements ....
- Wed Jan 11, 2023 8:43 pm
- Forum: Specimens, samples and slides
- Topic: Help - Making a permanent blood smear slide
- Replies: 7
- Views: 2319
- Wed Jan 11, 2023 4:22 am
- Forum: Specimens, samples and slides
- Topic: Help - Making a permanent blood smear slide
- Replies: 7
- Views: 2319
Re: Help - Making a permanent blood smear slide
To make blood smears permanent I use the following process. Make your smear the usual way. Let it dry in air. This takes only a minute or so. Fix in methanol. Stain following the usual process for your chosen staining. Wash thoroughly in distilled water. Let it dry in air. Wash three times in isopro...
- Mon Jan 09, 2023 7:10 pm
- Forum: Home-made microscope adaptations
- Topic: Leitz hm-Lux replacing bulb light with LED ?
- Replies: 12
- Views: 5002
- Mon Jan 09, 2023 6:14 pm
- Forum: Home-made microscope adaptations
- Topic: Leitz hm-Lux replacing bulb light with LED ?
- Replies: 12
- Views: 5002
Re: Leitz hm-Lux replacing bulb light with LED ?
Try https://www.ebay.com/itm/255490368747.
I never used something from this seller. The risk is all yours.
I never used something from this seller. The risk is all yours.
- Sun Jan 08, 2023 1:11 am
- Forum: Beginner's corner
- Topic: Hemacytometer Cover Glass
- Replies: 19
- Views: 3954
Re: Hemacytometer Cover Glass
To work properly your hemacytometer needs its special cover glass. It fits the chamber, it is grounded flat for precision and it is stable enough not to be bent by the capillary force in the filled chamber. All those properties are needed to have a defined volume in the chamber. A standard cover gla...
- Fri Dec 30, 2022 10:37 pm
- Forum: Camera systems and imaging
- Topic: Is this genius or madness ?
- Replies: 20
- Views: 3971
Re: Is this genius or madness ?
It is not mad, it is just a click-bait.
- Fri Dec 30, 2022 9:59 pm
- Forum: Microscopes and optics
- Topic: Can I remove an excitation filter to increase auto fluorescence?
- Replies: 5
- Views: 1037
Re: Can I remove an excitation filter to increase auto fluorescence?
I don't see any safety issue with it but the results will not satisfy you. The green yellow and red light coming from the Mercury burner will be much stronger than any fluorescence light. As a result you will see no autofluorescence at all. There are filter cubes that allow only UV or UV + violett o...
- Fri Dec 30, 2022 9:46 am
- Forum: Camera systems and imaging
- Topic: Banding in my images when attempting flash photomicrography:
- Replies: 6
- Views: 1667
Re: Banding in my images when attempting flash photomicrography:
I would like to know then what exposure times can freeze most motion. With this limitation in mind, I can only feasibly go to an exposure time of 1/250 sec with my camera. 1/250 is the fastest speed that opens the shutter fully on the 60D. Shorter times do not open the shutter fully which results i...
- Fri Dec 16, 2022 11:52 pm
- Forum: Beginner's corner
- Topic: is indian microscope any good?
- Replies: 3
- Views: 1214
Re: is indian microscope any good?
If you are based in India, give them a try. The "American" microscopes from Amscope et. al. are all made in China and not different from those Chinese brands. If they are good for you, there is a very good chance an Indian one is as well.
- Sun Dec 11, 2022 3:11 pm
- Forum: Microscopes and optics
- Topic: What to do with Nikon Fluor 10x in poor condition?
- Replies: 26
- Views: 3961
Re: What to do with Nikon Fluor 10x in poor condition?
The 100x are immersion objectives. They are very tolerant against scratches on the front lens because the oil fill them op and there is extremely little refraction between glass and oil.
- Sun Dec 11, 2022 1:20 pm
- Forum: Microscopes and optics
- Topic: New stereo microscope under 2000€
- Replies: 10
- Views: 1723
Re: New stereo microscope under 2000€
I thought Zeiss is more expensive, just realized one can make an account on their page and see the prices. The trinocular 305 with a base and gooseneck LEDs costs 2800€, that should be good, although a bit over the budget. https://pulchlorenz.de/mikroskope/stereomikroskope/stemi-305/stereomikroskop...