Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
I finally got around to finishing this one up for distribution:
This shows how to do a teardown and rebuild of the coaxial focus mechanism in an Olympus BH-2 stand, to get rid of the old gummy grease and make it perform like-new again. I hope somebody finds this useful.
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
This shows how to do a teardown and rebuild of the coaxial focus mechanism in an Olympus BH-2 stand, to get rid of the old gummy grease and make it perform like-new again. I hope somebody finds this useful.
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
Last edited by carlh6902 on Mon Apr 15, 2019 1:09 am, edited 4 times in total.
--- If you're in the Kansas City area and you need help with an Olympus BH-2 scope, PM me. I love to work on these things ---
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
That is a very finely detailed booklet, nice touch to have internal links as well.
Very impressive!
You should place this in the Resources (online, books etc.) section so that it is easier to find in future.
Very impressive!
You should place this in the Resources (online, books etc.) section so that it is easier to find in future.
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Many thanks for sharing that
... a very thorough, and nicely presented, document.
.
MichaelG.
... a very thorough, and nicely presented, document.
.
MichaelG.
Too many 'projects'
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
For anybody who's interested, I just updated the BH2 focus rebuild document linked above to revision 2 (now 3). This revision corrects a few minor errors, as listed on the cover sheet. The link above will take you to this new revision.
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
Last edited by carlh6902 on Mon Apr 15, 2019 1:11 am, edited 3 times in total.
--- If you're in the Kansas City area and you need help with an Olympus BH-2 scope, PM me. I love to work on these things ---
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Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Great resource! Thanks very much for your work on this.
CE
CE
Olympus BH-2 / BHTU
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB
LOMO BIOLAM L-2-2
LOMO POLAM L-213 / BIOLAM L-211 hybrid
LOMO Multiscope (Biolam)
Cameras: Canon T3i, Olympus E-P1 MFT, Amscope 3mp USB
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
WOW! Very impressive work!
Flickr: https://www.flickr.com/photos/micromundus
Instagram: https://www.instagram.com/micromundusphotography
Web: https://hakankvarnstrom.com
Olympus BX51 | Olympus CX23 | Olympus SZ40 | Carl ZEISS EVO LS 10 Lab6 | Carl Zeiss Jena Sedival
Instagram: https://www.instagram.com/micromundusphotography
Web: https://hakankvarnstrom.com
Olympus BX51 | Olympus CX23 | Olympus SZ40 | Carl ZEISS EVO LS 10 Lab6 | Carl Zeiss Jena Sedival
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Very Nice Job, Carl.
It's every bit as good (and better, in many instances) as what they gave us at the Olympus school... back in the day
lorez
It's every bit as good (and better, in many instances) as what they gave us at the Olympus school... back in the day
lorez
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
I will just add this to this old thread. Its a procedure to teardown and rebuild the coaxial focus mechanism in an Olympus BH-2.
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:
https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8
Carl
Last edited by carlh6902 on Mon Apr 15, 2019 1:13 am, edited 2 times in total.
--- If you're in the Kansas City area and you need help with an Olympus BH-2 scope, PM me. I love to work on these things ---
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Nice work - very nicely detailed step by step approach.
Seeing your use of a heat gun reminds me that I have a stuck part (old dry grease),
I have been thinking of borrowing a hair dryer and focusing the air flow. How hot does it need to be?
Seeing your use of a heat gun reminds me that I have a stuck part (old dry grease),
I have been thinking of borrowing a hair dryer and focusing the air flow. How hot does it need to be?
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Any heat at all should help the old grease move. More is obviously better, but in some cases you have to limit the heat due to nearby plastic parts, etc. I picked up a heat gun at Harbor Freight for under ten bucks, and would not try to tear into an Olympus BH-2 scope without it. Not just for the dried grease, but they staked so many fasteners with adhesive that heat is a must-have.
Carl
Carl
--- If you're in the Kansas City area and you need help with an Olympus BH-2 scope, PM me. I love to work on these things ---
Re: Olympus BH-2 Focus Mechanism - Teardown and Rebuild Procedure
Thanks for the tip, Carl..carlh6902 wrote:Any heat at all should help the old grease move. More is obviously better, but in some cases you have to limit the heat due to nearby plastic parts, etc. I picked up a heat gun at Harbor Freight for under ten bucks, and would not try to tear into an Olympus BH-2 scope without it. Not just for the dried grease, but they staked so many fasteners with adhesive that heat is a must-have.
Carl
BillT