Since the LB objectives used on the BH2 are not fully compensated, they rely on the eyepieces and NFK protection optics to complete the compensation of the intermediate image produced by the objectives. You therefore MUST use an NFK in the trinocular port.
Carl
Search found 164 matches
- Tue Nov 14, 2023 1:30 am
- Forum: Camera systems and imaging
- Topic: Magnification of the NFK eyepiece in the Olympus BH-2 system
- Replies: 15
- Views: 4461
- Mon Nov 06, 2023 5:08 pm
- Forum: Beginner's corner
- Topic: Does the Olympus BH2 phase contrast condenser provide darkfield?
- Replies: 2
- Views: 1246
Re: Does the Olympus BH2 phase contrast condenser provide darkfield?
There were two specific versions of the phase-contrast condenser offered by Olympus, for the BH2 scopes, as follows: 1) BH2-PC. This condenser has 0 (brightfield), 10, 20, 40, and 100 (phase) positions. 2) BH2-PCD. This condenser has 0 (brightfield), 10, 40, and 100 (phase) positions, and a dedicate...
- Mon Nov 06, 2023 4:48 pm
- Forum: Pictures and Videos
- Topic: Darkfield Diatoms - Amscope Condenser on BH2
- Replies: 17
- Views: 4376
Re: Darkfield Diatoms - Amscope Condenser on BH2
Here is a usable way to add darkfield and oblique to your BH2 (BHT, BHTU, BHS). The darkfield results will not be as good as what you can obtain with the true darkfield condensers discussed in this thread, but is certainly acceptable. https://drive.google.com/drive/folders/1YmmqtSaPhHaZnf6zRctKjqlMN...
- Mon Nov 06, 2023 4:29 pm
- Forum: About the website, the magazine and this forum
- Topic: Darkfield using Olympus BH2/BHS
- Replies: 6
- Views: 15233
Re: Darkfield using Olympus BH2/BHS
Here are darkfield and oblique solutions for the BH2 (BHT, BUTU, BHS):
https://drive.google.com/drive/folders/ ... drive_link
https://drive.google.com/drive/folders/ ... drive_link
Carl
https://drive.google.com/drive/folders/ ... drive_link
https://drive.google.com/drive/folders/ ... drive_link
Carl
- Thu Sep 14, 2023 2:40 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Stage Leveling Tool
- Replies: 9
- Views: 16803
Re: Stage Leveling Tool
Thanks for all the replies. Lots to think over.
Carl
Carl
- Sun Sep 03, 2023 3:12 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Stage Leveling Tool
- Replies: 9
- Views: 16803
Stage Leveling Tool
Looking to find a microscope stage alignment jig. The kind that screws into an RMS objective hole and allows you to judge the alignment of the the stage, relative to the objective hole.
Carl
Carl
- Fri Aug 04, 2023 2:19 am
- Forum: Microscopy accessories
- Topic: Oiling/Greasing a Microscope
- Replies: 8
- Views: 2136
Re: Oiling/Greasing a Microscope
I have a friend who is a retired microscope repairman in the Madison WI area. 50 plus years of field service of Olympus scopes. He taught me most of what I know about Olympus scopes, and he swore by Plastilube, and used in every BH2 scope he serviced. So there is good demonstrated history of no opti...
- Tue Nov 01, 2022 2:16 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Olympus BX items for sale
- Replies: 11
- Views: 2227
Re: Olympus BX items for sale
There is no nfk that captures the superwide field that the sw trinocular with 30mm eyepieces provides.
Carl
Carl
- Fri Sep 16, 2022 1:47 am
- Forum: Camera systems and imaging
- Topic: BH2 Advice please on USB camera options
- Replies: 3
- Views: 1075
- Thu Sep 01, 2022 3:56 pm
- Forum: Microscopes and optics
- Topic: Olympus BH-2 question
- Replies: 9
- Views: 4438
- Sat Aug 27, 2022 2:24 am
- Forum: Illumination Techniques
- Topic: Oblique Insert for Olympus BH2
- Replies: 1
- Views: 1161
- Sat Aug 20, 2022 3:47 am
- Forum: Illumination Techniques
- Topic: Adding Simple Darkfield to a Nikon Labophot Condenser
- Replies: 22
- Views: 13370
- Sat Aug 20, 2022 3:15 am
- Forum: Camera systems and imaging
- Topic: Thin helicoid grease...
- Replies: 8
- Views: 1708
Re: Thin helicoid grease...
I also use Helimax XP.
Carl
Carl
- Sat Aug 20, 2022 2:41 am
- Forum: Illumination Techniques
- Topic: Darkfield/Rheinberg on the BH2
- Replies: 3
- Views: 1243
- Wed Jan 05, 2022 7:08 pm
- Forum: Microscopes and optics
- Topic: Possible 1940s Olympus Microscope and Objectives (Updated)
- Replies: 13
- Views: 3379
- Thu Dec 23, 2021 3:29 am
- Forum: Microscopes and optics
- Topic: Olympus NC Splan APO 60x spring dissasembly
- Replies: 14
- Views: 3808
- Fri Dec 10, 2021 1:45 am
- Forum: Microscopes and optics
- Topic: Collimation of Oly BH2 microscope
- Replies: 7
- Views: 2887
Re: Collimation of Oly BH2 microscope
Alan Wood has the CH repair manual from Olympus, in PDF format, on his site. It clearly shows the AA7826 gear used in the knob. I can verify that it is the same gear as the BHS, BHT, BHSU, and BHTU (and others).
Carl
Carl
- Fri Dec 10, 2021 12:40 am
- Forum: Microscopes and optics
- Topic: CH/BH2 Compatibility
- Replies: 7
- Views: 2511
Re: CH/BH2 Compatibility
Many, but not all, of the low-level focus parts are interchangeable between the BH2 and CH. The AA7826 gear in the fine focus knob is, whereas the other gears are not, if I recall correctly. The pinion assembly is similar, but different parts (the knob-to-knob distance is different).
Carl
Carl
- Fri Dec 10, 2021 12:31 am
- Forum: Microscopes and optics
- Topic: Collimation of Oly BH2 microscope
- Replies: 7
- Views: 2887
Re: Collimation of Oly BH2 microscope
If you use a modified light inlet barrel as the target, it fits VERY accurately, with no discernable play. It is almost an interference fit. Having said that, you'll never notice the effects if it's out of collimation. But technically, it does matter, if only just a little bit. I've had many people ...
- Mon Nov 01, 2021 5:41 pm
- Forum: Beginner's corner
- Topic: Objective hits the glass
- Replies: 15
- Views: 3831
Re: Objective hits the glass
If you wear glasses, but are using the scope without your glasses, you may be compromising the proper working distance of your scope to accommodate your vision. If so, try it with your glasses on. Then there are the two classic beginner mistakes: 1) Not using a proper .17mm cover glass. If too thick...
- Fri Oct 08, 2021 12:34 am
- Forum: Beginner's corner
- Topic: Anyone else is sick of closing and straining their other eye while looking into the microscope?
- Replies: 13
- Views: 3659
Re: Anyone else is sick of closing and straining their other eye while looking into the microscope?
You should train yourself to look into a monocular microscope, using your dominant eye, while keeping the other eye OPEN. Much less eye strain.
Carl
Carl
- Thu Sep 30, 2021 11:31 am
- Forum: Collecting microscopes and slides
- Topic: Repurposing various optics and accessories
- Replies: 3
- Views: 3462
Re: Repurposing various optics and accessories
I know this is an old post, but that Nikon swingout condenser should mount onto the bhs just fine.
Carl
Carl
- Thu Sep 30, 2021 2:32 am
- Forum: Collecting microscopes and slides
- Topic: Olympus BH2/CH2 compatibility.
- Replies: 7
- Views: 6081
Re: Olympus BH2/CH2 compatibility.
Advantages of the bh2 over the ch2: 1) True kohler lighting. 2) Better modularity. 3) Greater ruggedness. 4) Wider viewfield (18mm on ch2, 20mm or 26.5mm on bh2) 5) Tube length compensation. The viewing head for the bh2 is compensated to prevent changes in tube length with IOD adjustment, whereas th...
- Sat Sep 04, 2021 2:53 am
- Forum: Microscopes and optics
- Topic: Olympus BH2 vs Zeiss Primo Star
- Replies: 13
- Views: 4749
Re: Olympus BH2 vs Zeiss Primo Star
Feel free to PM me if you'd like to inquire about a refurbished BH2.
Carl Hunsinger
Carl Hunsinger
- Tue Aug 24, 2021 3:57 am
- Forum: My microscope
- Topic: Olympus BH2 BHSP with reflected light
- Replies: 43
- Views: 16723
Re: Olympus BH2 BHSP with reflected light
The Nikon CF objectives and the Olympus SWHK eyepieces are a poor match.
Carl
Carl
- Fri Aug 06, 2021 12:39 am
- Forum: Introduce yourself
- Topic: Possibly the most affordable midlife crisis I could have :)
- Replies: 29
- Views: 11396
- Mon Aug 02, 2021 3:05 am
- Forum: Microscopes and optics
- Topic: Olympus Vanox AHMT interpupillary mechanism
- Replies: 7
- Views: 3164
Re: Olympus Vanox AHMT interpupillary mechanism
That mechanism is the automatic tube length compensation for the Jetzsch style heads. It is absolutely necessary when using high performance objectives.
The bh2 mechanusm is this PDF is similar:
https://drive.google.com/file/d/1oWyF3o ... p=drivesdk
Carl
The bh2 mechanusm is this PDF is similar:
https://drive.google.com/file/d/1oWyF3o ... p=drivesdk
Carl
- Mon May 10, 2021 2:49 am
- Forum: Home-made microscope adaptations
- Topic: Adding Darkfield to Nikon Dovetail Conderser - Also of Interest to Oly BH2
- Replies: 8
- Views: 9425
- Wed Apr 28, 2021 4:17 am
- Forum: Miscellaneous
- Topic: Cleaning the Immersion Objective
- Replies: 14
- Views: 5999
Re: Cleaning the Immersion Objective
Just to clarify a previous point, many fingernail polish removers (such as Onyx) are indeed 100% acetone, and are marked accordingly.
Carl
Carl
- Tue Mar 23, 2021 1:51 am
- Forum: Microscopes and optics
- Topic: Olympus Splan Apo 100x 1.4NA +coverslip +iris - The Objective that Doesn't Exist?
- Replies: 8
- Views: 4042
Re: Olympus Splan Apo 100x 1.4NA +coverslip +iris - The Objective that Doesn't Exist?
Old thread, I know. Here are the LB objectives I'm aware of.
https://drive.google.com/file/d/191X1Kx ... p=drivesdk
Carl
https://drive.google.com/file/d/191X1Kx ... p=drivesdk
Carl