Search found 402 matches

by deBult
Tue Mar 05, 2024 8:31 pm
Forum: Illumination Techniques
Topic: Condenser Alignment.
Replies: 17
Views: 974

Re: Condenser Alignment.

Ha great info -again! Thanks for sharing this “how to”.
by deBult
Wed Feb 14, 2024 8:05 pm
Forum: Beginner's corner
Topic: seeing double images
Replies: 10
Views: 4098

Re: seeing double images

Ehh, maybe a trivial idea but: does another user/person have the same problem (just to eliminate your cataract surgery) ?
by deBult
Sat Feb 10, 2024 12:46 am
Forum: Microscopes and optics
Topic: Higher power eyepieces beyond 10x?
Replies: 6
Views: 589

Re: Higher power eyepieces beyond 10x?

Reminder: to match the required optical correction of your objectives eyepieces of the same brand and era are required, particularly if you are using a scope of 160 or 170 tube length. For the infinity tube length scopes this requirement may be less strict. I’m using (relative rare) Olympus WHK 12.5...
by deBult
Sat Feb 10, 2024 12:35 am
Forum: Microscopes and optics
Topic: Adding an brightfield objective..20x or 25x?
Replies: 4
Views: 399

Re: Adding an brightfield objective..20x or 25x?

Your add on objective has to work in your system : have corrections that are equivalent to other objectives in your existing system, so I can't think of an instance where a company made both in the same optical family. You will have the choice of one or the other. Meaning: you require an objective ...
by deBult
Sat Feb 10, 2024 12:32 am
Forum: Illumination Techniques
Topic: My problem with DIC PZO
Replies: 14
Views: 1371

Re: My problem with DIC PZO

If memory serves me: I think PZO has a series of specific DIC objectives.
by deBult
Tue Feb 06, 2024 1:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Olympus BH2-AN Analyser for DIC
Replies: 21
Views: 1778

Re: WTB: Olympus BH2-AN Analyser for DIC

woyjwjl wrote:
Tue Feb 06, 2024 8:19 am
I admit it is difficult to make comparisons and draw conclusions, but coincidentally, I have both AH and BH2 DIC kits and have obtained test images of both. If anyone is interested, I can publish them.
Yes please !
by deBult
Tue Feb 06, 2024 6:55 am
Forum: Beginner's corner
Topic: Importing Items From Europe to US
Replies: 12
Views: 1107

Re: Importing Items From Europe to US

You just opined: ' not the sellers problem'...well then my sense is : why should I gamble with spending monies in a market where: 'sellers have no control/ no idea of final costs of items they market for sale? I think what you described were not customs fees, but add ons on the seller's end which s...
by deBult
Sun Feb 04, 2024 9:00 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Olympus BH2-AN Analyser for DIC
Replies: 21
Views: 1778

Re: WTB: Olympus BH2-AN Analyser for DIC

Your research may be incomplete: Please look at my earlier link to the Alan Wood site. 1) My BH2 (Long barrel ) DIC set has a BH2-NA analyser, positioned below the Bino/Trino. 2) You do not require the BH2-AN: the 2nd DIC polariser is part of the BH2-NC condensor. 3) The BH2 DIC set is not designed ...
by deBult
Sat Feb 03, 2024 5:58 pm
Forum: Beginner's corner
Topic: Importing Items From Europe to US
Replies: 12
Views: 1107

Re: Importing Items From Europe to US

Ehhh, my position is the BUYER should check to custom etc requirements of his own country.

As a seller it is impossible to know / research all different country requirements.

This is wat eB… does for you (at a price) and I encountered several case where even they were in error.
by deBult
Fri Feb 02, 2024 3:01 am
Forum: Microscopes and optics
Topic: Measuring collimation error on Olympus CH2
Replies: 2
Views: 323

Re: Measuring collimation error on Olympus CH2

Hmmm would be interested in the proper way how to do this calibration as well: @PeteM, @Apo, @Saro: please chime in!
by deBult
Fri Feb 02, 2024 2:56 am
Forum: Microscopes and optics
Topic: Olympus CK2 binocular schematic needed
Replies: 6
Views: 459

Re: Olympus CK2 binocular schematic needed

Check the repair guides on the Alan Wood website: their may be a similar one.

e.g. https://www.alanwood.net/downloads/olym ... manual.pdf
by deBult
Fri Feb 02, 2024 2:37 am
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Olympus BH2-AN Analyser for DIC
Replies: 21
Views: 1778

Re: WTB: Olympus BH2-AN Analyser for DIC

If you can find a clone from a Chinese source, that may be your best option. DeBult - we're both interested in that source The one I bought in China via .Bay was an original Olympus one (NOS: New Old Stock) and came as a full set including condenser etc. All in original (brown box styropor) Olympus...
by deBult
Thu Feb 01, 2024 8:05 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Olympus BH2-AN Analyser for DIC
Replies: 21
Views: 1778

Re: WTB: Olympus BH2-AN Analyser for DIC

It took me approx. 10 years to find an “affordable” one, in the end took the plunge and got me a NOS sample from china.
by deBult
Thu Feb 01, 2024 7:39 pm
Forum: My microscope
Topic: AO 10 Arrived today - trying to ID everything to ask intelligent questions about upgrading
Replies: 14
Views: 1461

Re: AO 10 Arrived today - trying to ID everything to ask intelligent questions about upgrading

Wow excellent value for money. Consider using what you have now before investing in upgrades. I worked with a simple Olympus E-type bino for 40 years before upgrading to plan and later Apo objectives. Most of my observation is pond samples related and simple achromats (with relative large depth of f...
by deBult
Sat Jan 20, 2024 6:31 pm
Forum: Microscopy accessories
Topic: Mystery Nikon Magnifier
Replies: 8
Views: 1122

Re: Mystery Nikon Magnifier

I have a similar one, Olympus.
The Olympus onecis used as an alignement tool after a repair exercise involving the optical train.
by deBult
Fri Jan 12, 2024 1:59 am
Forum: Pictures and Videos
Topic: Amoeba Arcella
Replies: 13
Views: 1613

Re: Amoeba Arcella

Very well done, thanks for sharing.
by deBult
Mon Jan 08, 2024 3:58 pm
Forum: Beginner's corner
Topic: What is the diference beetween a Splan Apo and Neo Splan NIC??
Replies: 8
Views: 6028

Re: What is the diference beetween a Splan Apo and Neo Splan NIC??

Looks like you have the standard Trino head not the wide version: so no advantage in the wider view when switching from DPlan to SPlan objectives. Looks like you have the SC flip top condensor: so max useful objective NA is in the 0.9-1.0 range, and no immersion capability: SPlanApo’s starting with ...
by deBult
Wed Jan 03, 2024 6:40 pm
Forum: Beginner's corner
Topic: What is the diference beetween a Splan Apo and Neo Splan NIC??
Replies: 8
Views: 6028

Re: What is the diference beetween a Splan Apo and Neo Splan NIC??

I found that the best image quality you will achieve is with SPlan Apo's. Please be informed the “front lens - to - sample” distance of the Olympus SPlanApo series is (very) short (starting with the 20*), so a bit risky in beginners hands. I love my 20* SPlanApo (actually have 2) but use it most of...
by deBult
Sat Dec 23, 2023 5:55 am
Forum: Beginner's corner
Topic: Best size objective for Pond life?
Replies: 36
Views: 57034

Re: Best size objective for Pond life?

Not sure how we all ended up here : this is the beginners corner and a beginners question.

Naturally: with proper technique and practice you can use your higher Mag. and NA objectives: don’t see above discussion is helpful to a beginner.
by deBult
Fri Dec 22, 2023 11:50 am
Forum: Beginner's corner
Topic: Best size objective for Pond life?
Replies: 36
Views: 57034

Re: Best size objective for Pond life?

When (ever, not that often see above) using a high NA or 100* oiled objective with a wet sample mount: I often use a number 0 [correction # 1] cover glass replacing the standard (Zeiss) 1.5 to compensate for the sample thickness. As stated by Apo above when moving into the extreme magnification / la...
by deBult
Thu Dec 21, 2023 4:03 am
Forum: Beginner's corner
Topic: Collecting pond samples...
Replies: 3
Views: 1116

Re: Collecting pond samples...

Yes, I sampled from under the beginning ice cover last week (both free water and bottom samples): 5 different Daphnia species, rotifer, protists, several green algae and some Desmids (the latter will not last very long in your culture though).
by deBult
Thu Dec 21, 2023 3:51 am
Forum: Beginner's corner
Topic: Best size objective for Pond life?
Replies: 36
Views: 57034

Re: Best size objective for Pond life?

Apo, you are right the 100* adds to the experience. But, in my personal experience when using the 100* oil objective on pond sample slides, the coverglass often moves when scanning the slide. And when using the 100* I often want to switch back to a lower enlargement, requiring a 40* or 50* oil, (an...
by deBult
Thu Dec 21, 2023 3:36 am
Forum: Microscopes and optics
Topic: Nosepiece compatibility between CH2 and BH2
Replies: 4
Views: 2399

Re: Nosepiece compatibility between CH2 and BH2

Yep, forgot to mention the obvious: you have to remove the dovetail slider. Note: the screw heads may look like Philips, but are actually JIS (Japan Industry Standard), as the screws are often stuck: you will ruin the heads when using a Philips screwdriver. In addition some heat (soldering iron) app...
by deBult
Wed Dec 20, 2023 8:51 pm
Forum: Beginner's corner
Topic: Best size objective for Pond life?
Replies: 36
Views: 57034

Re: Best size objective for Pond life?

Apo, you are right the 100* adds to the experience. But, in my personal experience when using the 100* oil objective on pond sample slides, the coverglass often moves when scanning the slide. And when using the 100* I often want to switch back to a lower enlargement, requiring a 40* or 50* oil, (and...
by deBult
Wed Dec 20, 2023 8:23 pm
Forum: Microscopes and optics
Topic: Nosepiece compatibility between CH2 and BH2
Replies: 4
Views: 2399

Re: Nosepiece compatibility between CH2 and BH2

Do not know, SOME -not all variants- of the 5 pieces turrets fit the CH2. Must have a picture somewhere ….. Pictures courtesy of a fellow microscopist whose name slipped my mind for this moment. The one on the left has the 2 required screw mounting holes: left and right of the dovetail “slider” (sor...
by deBult
Wed Dec 20, 2023 7:32 am
Forum: Beginner's corner
Topic: Best size objective for Pond life?
Replies: 36
Views: 57034

Re: Best size objective for Pond life?

20* is by far my most favoured objective for pond life (4* for the overview, 10* to find your subject, 20* to observe its behaviour, 40* to identify).
by deBult
Tue Dec 05, 2023 5:13 pm
Forum: Microscopes and optics
Topic: Olympus BH-2 head opening
Replies: 4
Views: 1818

Re: Olympus BH-2 head opening

Looks like a CH2 head to me? Maintenance guides and videos (BH2) by our forum member Carl H. (give a flavor on what to do) and a CH maintenance guide in writing on https://www.alanwood.net/olympus/downloads.html#bh2 Plastilube break grease will do, clean the rails with lighter fluid first. The “glue...
by deBult
Tue Nov 28, 2023 7:20 pm
Forum: For forum members who want to buy and sell equipment
Topic: Motic 60x/0.85 plan objective
Replies: 3
Views: 2173

Re: Motic 60x/0.85 plan objective

Location please (I’m in continental Europe).