Search found 402 matches

by deBult
Mon Nov 27, 2023 12:43 am
Forum: My microscope
Topic: how many microscopes do you have?
Replies: 13
Views: 7210

Re: how many microscopes do you have?

Translated signature seen on a German forum

“Life with only one black microscope is a possible option, but meaningless.”
by deBult
Sat Nov 25, 2023 1:06 am
Forum: My microscope
Topic: how many microscopes do you have?
Replies: 13
Views: 7210

Re: how many microscopes do you have?

The correct number of microscopes to own is n+1, where n is the number currently owned.

I’m clearing house, 7 left.
by deBult
Thu Nov 23, 2023 10:36 pm
Forum: Microscopy accessories
Topic: BH-2 RFCA, filtre cubes, filtres and accessories
Replies: 10
Views: 6376

Re: BH-2 RFCA, filtre cubes, filtres and accessories

Google translate is your friend here
by deBult
Thu Nov 23, 2023 10:04 pm
Forum: Microscopy accessories
Topic: BH-2 RFCA, filtre cubes, filtres and accessories
Replies: 10
Views: 6376

Re: BH-2 RFCA, filtre cubes, filtres and accessories

English is not my native language so some subtleties in wording .. I stated ”assumption” the UV light damages the lens kit/glue. I personally have a completely fogged SPlanApo 40* and 2 10* phase Achromats with the effects shown. https://www.mikroskopie-forum.de/index.php?topic=47330.msg348691#msg34...
by deBult
Thu Nov 23, 2023 9:52 pm
Forum: Microscopy accessories
Topic: BH-2 RFCA, filtre cubes, filtres and accessories
Replies: 10
Views: 6376

Re: BH-2 RFCA, filtre cubes, filtres and accessories

Note: on the German forum we have a few cases of Olympus SPlanApo an DPlanApo with fogging, assumption here is the fogging is caused by usage on a UV scope.
by deBult
Wed Nov 22, 2023 2:25 pm
Forum: Microscopy accessories
Topic: Lubricating cube slider/carrier in the olympus BH-2 RFCA
Replies: 9
Views: 2396

Re: Lubricating cube slider/carrier in the olympus BH-2 RFCA

Tim, Check the BH2 maintenance video’s on the Alan Wood website filmed by our forum member Carl H.: it will give you a clue on how little grease is required. I overhauled 7 BH2 scopes and 4 CH2: my first small Plastilube grease tube is still at 50%. The helicoid grease is still at 95% unused. YMMV t...
by deBult
Sun Nov 19, 2023 4:29 am
Forum: Microscopy accessories
Topic: Lubricating cube slider/carrier in the olympus BH-2 RFCA
Replies: 9
Views: 2396

Re: Lubricating cube slider/carrier in the olympus BH-2 RFCA

I found the service manual. It states that the proper lubricant (if I interpret it correctly) is “Losoid 72515.” Now where would one obtain this? The original Olympus greases are “unuptanium”: nowhere to find. Any light grease will do, e.g. search for “helicoid grease“ if you have no access to spec...
by deBult
Sat Nov 18, 2023 4:32 pm
Forum: Microscopy accessories
Topic: Lubricating cube slider/carrier in the olympus BH-2 RFCA
Replies: 9
Views: 2396

Re: Lubricating cube slider/carrier in the olympus BH-2 RFCA

For a slider I would look for a lighter grease type, Plastilube may be to thick.
by deBult
Sat Nov 18, 2023 4:18 pm
Forum: Beginner's corner
Topic: DARKFIELD WITH OLYMPUS CH2
Replies: 8
Views: 1872

Re: DARKFIELD WITH OLYMPUS CH2

Darkfield using a 40* requires critical centering as stated in previous post. The ORIGINAL Olympus dark field stop (size does matter here) is readily available on the US .bay and “reasonable” priced. A few pictures of the condenser will help to verify what condenser version you have, looks like you ...
by deBult
Sat Nov 18, 2023 3:20 am
Forum: Microscopy accessories
Topic: Lubricating cube slider/carrier in the olympus BH-2 RFCA
Replies: 9
Views: 2396

Re: Lubricating cube slider/carrier in the olympus BH-2 RFCA

Auch.. keep silicon spray away from your optics! You cannot dose it properly and even if you can it will migrate to the lens / filter surfaces in the end. Disassembly, clean (lighter fluid will do) and relube with Plastilube break lubrication. I do not have the RCFA unit myself, but be aware screw h...
by deBult
Sat Nov 18, 2023 3:11 am
Forum: Beginner's corner
Topic: DARKFIELD WITH OLYMPUS CH2
Replies: 8
Views: 1872

Re: DARKFIELD WITH OLYMPUS CH2

Ange, Detailed pictures of your configuration will help us helping you, common reasons why DF does not work A: The condenser has to be “up” and nearly touching your slide to make it work with the 40*. Several of the entry versions of the CH2 have a simple condenser mechanism to move the condenser up...
by deBult
Mon Nov 13, 2023 9:01 pm
Forum: Illumination Techniques
Topic: Help: has anyone ever used Olympus DCW Darkfield condenser?
Replies: 31
Views: 98436

Re: Help: has anyone ever used Olympus DCW Darkfield condenser?

hkv wrote:
Mon Nov 13, 2023 8:55 pm
I use it all the time and it gives good results even with high NA objectives, but require careful alignment and oil between the top lens and the slide. Otherwise, it does not work properly. It is a picky condenser.
Are you using it on an Olympus BH2 or Motic scope?
by deBult
Mon Nov 13, 2023 8:17 pm
Forum: Illumination Techniques
Topic: Help: has anyone ever used Olympus DCW Darkfield condenser?
Replies: 31
Views: 98436

Re: Help: has anyone ever used Olympus DCW Darkfield condenser?

Hmm this Dark field condenser looks like a BH version with an ADDED mounting ring to match the BH2/Motic. May be in error as I only have the lower NA version. This will make the centring exercise even more important. Plus wondering whether the optical “train” of mixed Motic and Olympus parts in cond...
by deBult
Sun Nov 12, 2023 3:15 pm
Forum: Camera systems and imaging
Topic: Magnification of the NFK eyepiece in the Olympus BH-2 system
Replies: 15
Views: 3771

Re: Magnification of the NFK eyepiece in the Olympus BH-2 system

Your BH2 does NOT have an infinity corrected optical system, it is finite so a NFK correction eyepiece IS required. “Because if I understand correctly, I'll need a lens to project the image coming out of the eyepiece onto the sensor of my camera (because it's a virtual image, right?).” Using the L-t...
by deBult
Sun Oct 15, 2023 5:16 am
Forum: Camera systems and imaging
Topic: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
Replies: 10
Views: 2880

Re: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?

Combined with the L-tube and P-type eyepiece you require :

PM-ADP
P eyepiece
L-tube
Olympus- canon eos adapter like this one https://www.ebay.nl/itm/122637823689
Camera

You do not require a T2 adapter
by deBult
Fri Oct 13, 2023 6:11 am
Forum: Camera systems and imaging
Topic: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
Replies: 10
Views: 2880

Re: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?

Sorry, the adapter you bought will only function on a micro with infinity objectives. As stated on the Alan Wood pages + above you require an Olympus FK correction eyepiece (finite objectives require a MATCHING projection eyepiece for color correction). (assuming you are using the original supplied ...
by deBult
Fri Sep 22, 2023 6:17 am
Forum: My microscope
Topic: Omax M83EZ-C02
Replies: 3
Views: 1715

Re: Omax M83EZ-C02

To avoid shutter induced vibrations you require a camera with EFSC Electronic First Shutter Curtain.

More info : https://krebsmicro.com/
by deBult
Sat Sep 16, 2023 5:39 pm
Forum: My microscope
Topic: My microscope...till tomorrow
Replies: 3
Views: 1624

Re: My microscope...till tomorrow

Some guidance on attaching your scope to your camera.

https://krebsmicro.com/
by deBult
Wed Sep 13, 2023 7:36 pm
Forum: Microscopes and optics
Topic: Reichert objectives differences?
Replies: 8
Views: 1682

Re: Reichert objectives differences?

Think your “austria” lens may have lost its front lens?

The proof of the pudding is in the imaging.
by deBult
Sat Sep 09, 2023 12:11 am
Forum: Microscopes and optics
Topic: Removing the drawing attachment from Olympus BH2
Replies: 15
Views: 2191

Re: Removing the drawing attachment from Olympus BH2

Bruce Taylor wrote:
Fri Sep 08, 2023 5:21 pm
Thanks again, PeteM. I'll see if I can remove the debris with a bulb blower and/or soft brush, but if it comes to using solvents (even water!), I think I'll let them bring in the technician! :)
Fair: a functioning BH2 with transmitted light DIC will do 4500-5500 on this side of the pond.
by deBult
Tue Sep 05, 2023 9:43 pm
Forum: Microscopes and optics
Topic: Microscope objective markings
Replies: 15
Views: 2532

Re: Microscope objective markings

When an objective has a notation of “php2” on it, what is it telling us? As I mentioned before I have seen a number of Chinese objectives with the notation “php” which is a phase designation. How do you think the “php” versus “php2” objectives differ? PHP2 is commonly used by Zeiss to indicate the ...
by deBult
Tue Aug 22, 2023 9:05 am
Forum: Beginner's corner
Topic: European source for beginner scopes?
Replies: 12
Views: 18731

Re: European source for beginner scopes?

Reliable sources for new and 2nd hand scopes in Europe UK: https://www.brunelmicroscopessecure.co.uk/index.html (already mentioned above, also good new scopes and supplies) NL: https://www.neopta.eu/ (also some supporting supplies) GER: http://www.mikroskop-online.de/ (mainly Zeiss and Leitz) GER: h...
by deBult
Tue Aug 22, 2023 8:58 am
Forum: Specimens, samples and slides
Topic: Where do y’all get your Mounting medium?
Replies: 5
Views: 2518

Re: Where do y’all get your Mounting medium?

Brunel in the UK sells a series of mounting materials (and other useful supplies) it ie even the only commercial source of Naphrax Diatom mounting.

https://www.brunelmicroscopessecure.co.uk/index.html
by deBult
Fri Aug 18, 2023 5:52 am
Forum: Microscopes and optics
Topic: Removing the drawing attachment from Olympus BH2
Replies: 15
Views: 2191

Re: Removing the drawing attachment from Olympus BH2

There's also a sort of rotating metal "hood" at the distal end of the tube, and when open it throws a distracting shaft of light over the middle of the visual field. Yep that is exactly what it is supposed to do: the mirror at the end projects the drawing paper and your pencil image on the desk tab...
by deBult
Fri Aug 18, 2023 5:48 am
Forum: Microscopes and optics
Topic: Removing the drawing attachment from Olympus BH2
Replies: 15
Views: 2191

Re: Removing the drawing attachment from Olympus BH2

Bruce, From memory (not at home so cannot check this weekend) on the more elaborate BH2 stages with removable revolver: the pin for removing the bino unscrews - and then you have to pull it (sliding mechanism INSIDE the pin) practice on that one first by removing the normarski analyzer. It may well ...
by deBult
Fri Aug 11, 2023 6:26 pm
Forum: Beginner's corner
Topic: Part number I'd for possible replacement. Olympus bx41
Replies: 2
Views: 892

Re: Part number I'd for possible replacement. Olympus bx41

As it looks a lot like the one used on a BH2.
I may have a spare one (have to check - currently on holiday)
Mainland Europe.

Measure it up and reach out via PM if interested.
by deBult
Tue Aug 01, 2023 7:27 pm
Forum: Microscopy accessories
Topic: Oiling/Greasing a Microscope
Replies: 8
Views: 2010

Re: Oiling/Greasing a Microscope

Mind the screws on older Olympus scopes may look like Philips heads, they are NOT.

You will need JIS type screwdrivers or you wil ruin the heads.
by deBult
Tue Aug 01, 2023 1:03 pm
Forum: Microscopy accessories
Topic: Oiling/Greasing a Microscope
Replies: 8
Views: 2010

Re: Oiling/Greasing a Microscope

For Olympus BH2 there is a series of repair guides and videos by forum member Carl Hunsinger on the Alan Wood website useful to understand the basics for other scopes as well https://www.alanwood.net/olympus/downloads.html#bh If you read German: the Mikroskopie-forum has lots of posting on Zeiss and...