Search found 1351 matches

by Charles
Sat Jan 09, 2021 12:15 am
Forum: Beginner's corner
Topic: phase annulus for AO 10 phase objectives
Replies: 4
Views: 103

Re: phase annulus for AO 10 phase objectives

Disregard my comments about the bright and medium being just for 160mmTL scopes. Looking at the the AO 10 phasestar manual on Xmission http://user.xmission.com/~psneeley/Personal/Microscope.htm , they show a bright, dark and B-minus phase objectives for the AO 10. But phase annuli in phase condenser...
by Charles
Sat Jan 09, 2021 12:05 am
Forum: Beginner's corner
Topic: phase annulus for AO 10 phase objectives
Replies: 4
Views: 103

Re: phase annulus for AO 10 phase objectives

The phase condenser for the AO 10 has specific positions for 10X, 20X, 40x and 100X phase annuli and also a brightfield position
by Charles
Fri Jan 08, 2021 11:11 pm
Forum: Microscopes and optics
Topic: Anyone know what the biggest 'n-tuple' nosepiece available is?
Replies: 6
Views: 208

Re: Anyone know what the biggest 'n-tuple' nosepiece available is?

Zeiss also has a seven objective turret for both the 160mm TL series scopes such as the Standard 18/WL and the Photomicroscope/Universals.
by Charles
Fri Jan 08, 2021 11:07 pm
Forum: Beginner's corner
Topic: phase annulus for AO 10 phase objectives
Replies: 4
Views: 103

Re: phase annulus for AO 10 phase objectives

The AO 10 series is an infinity scope and the only line of phase for infinity objectives is the Dark Phase objectives. The bright-medium phase is for the 160mm TL AO microscopes and requires only one set of phase rings for bright, medium and dark phase objectives.
by Charles
Tue Dec 29, 2020 2:01 pm
Forum: Microscopes and optics
Topic: Bent centering screw
Replies: 13
Views: 328

Re: Bent centering screw

I have straightened many bent bolt/screws. The easiest is to screw the bolt/screw into the stage as far as it will go. Then get a socket wrench which will fit the knob end snugly. You can wrap a piece of tape to the end of the screw/bolt knob to protect it. Turn the bolt/screw until you see where th...
by Charles
Sat Dec 26, 2020 6:37 pm
Forum: Microscopes and optics
Topic: Delaminated?
Replies: 5
Views: 180

Re: Delaminated?

It's hard to tell with such a busy back ground. In most Zeiss objectives with delamination, you see them around the edges.
by Charles
Wed Dec 23, 2020 4:47 pm
Forum: Beginner's corner
Topic: ..and is this normal?
Replies: 11
Views: 359

Re: ..and is this normal?

It looks like the top lens element in the eyepiece has dropped vertically. You maybe able to unscrew the eyepiece and place the lens in its proper place.
by Charles
Tue Dec 22, 2020 10:55 pm
Forum: Miscellaneous
Topic: Shipping microscopes
Replies: 19
Views: 3930

Re: Shipping microscopes

Dale wrote:
Tue Dec 22, 2020 7:16 pm
Oh, what bad memories your pix revive. Glad your stuff survived.
Hi Dale! How are you doing? Hope all is well.
by Charles
Tue Dec 22, 2020 2:51 pm
Forum: Microscopes and optics
Topic: Moving condenser
Replies: 6
Views: 243

Re: Moving condenser

If you go to the Swift site, you can download the manual: https://swiftoptical.com/products/sw380t Edit: Looking through the instructions, I don't see it mention centering the condenser. On the outside of the ring which holds the condenser, there should be two screws or knobs on either side. Move th...
by Charles
Sun Dec 13, 2020 7:39 pm
Forum: Introduce yourself
Topic: Love My Balplan
Replies: 33
Views: 2118

Re: Love My Balplan

Thanks BramHuntingNematodes.
by Charles
Sun Dec 13, 2020 7:21 pm
Forum: Introduce yourself
Topic: Love My Balplan
Replies: 33
Views: 2118

Re: Love My Balplan

There seems to be a few versions of the Dynoptic. There are even ones with the fine focus high on the limb. The version with the blue background does look like the trinocular and probably is the same base?
B&L Comparison.jpg
B&L Comparison.jpg (98.81 KiB) Viewed 1549 times
by Charles
Sun Dec 13, 2020 6:42 pm
Forum: Introduce yourself
Topic: Love My Balplan
Replies: 33
Views: 2118

Re: Love My Balplan

dang chuck that's some plush gear say does that trinocular have an intrinsic barlow lens looks like a Dynoptic stand Here is a comparison photo between the trinocular and Dynoptic. There are differences from the base up and the heads do not swap out. The trinocular head can also be rotated. B&L...
by Charles
Sun Dec 13, 2020 5:27 pm
Forum: Introduce yourself
Topic: Love My Balplan
Replies: 33
Views: 2118

Re: Love My Balplan

Welcome. It's great to have someone who has worked with B&L. Although I have never been a fan of the Balplan, I have collected a lot of the B&L microscopes from the all brass, brass & black and black era scopes. Here are some of my favorites in the black era. Would you be able to give me some info o...
by Charles
Tue Dec 08, 2020 1:56 pm
Forum: Specimens, samples and slides
Topic: Looking for storage suggestions
Replies: 1
Views: 235

Re: Looking for storage suggestions

For any slides, I would recommend storing the slides flat. You can use any slide storage container, just turn the storage container so the slides stay flat/ horizontal. Like Kurt's suggestion: viewtopic.php?f=10&t=9967
by Charles
Tue Dec 08, 2020 1:28 am
Forum: Identification help
Topic: Organic or Micro-plastic?
Replies: 6
Views: 497

Re: Organic or Micro-plastic?

Toothpaste sometimes have microplastic as cleaners. Dilute some of your toothpaste and see if you see the same spheres.
by Charles
Mon Dec 07, 2020 11:03 pm
Forum: Microscopy accessories
Topic: Slide storage drawer cabinets. BAD IDEA!
Replies: 7
Views: 563

Re: Slide storage drawer cabinets. BAD IDEA!

Yes, and I saw other brands like Fisher and Global Scientific with the same. I don't understand why anyone would store slides in such a manner except for maybe blank slides.
by Charles
Mon Dec 07, 2020 5:38 pm
Forum: Microscopy accessories
Topic: Slide storage drawer cabinets. BAD IDEA!
Replies: 7
Views: 563

Re: Slide storage drawer cabinets. BAD IDEA!

So you reach the point where you have a couple of thousand prepared microscope slides and you see a slide cabinet with 6 drawers that holds 2500 slides and you think your storage problems are over. DUMB! Such cabinets have no dividers. Slides are stacked in the vertical position. They rub against e...
by Charles
Fri Dec 04, 2020 10:20 pm
Forum: Beginner's corner
Topic: Is it safe to buy Used Microscopes and parts
Replies: 16
Views: 1201

Re: Is it safe to buy Used Microscopes and parts

I've bought hundreds of used microscopes and slides...even slides of pathogens. I must be lucky I'm still alive and well. :shock:
by Charles
Thu Dec 03, 2020 12:23 am
Forum: Introduce yourself
Topic: Comparing "toy" vs Professional Microscope Optical Quality
Replies: 4
Views: 668

Re: Comparing "toy" vs Professional Microscope Optical Quality

AntoniScott, This section is for new people to introduce themselves. There are other sections where topics of specimen prep and microscope comparisons can be discussed.
by Charles
Tue Dec 01, 2020 10:24 pm
Forum: Beginner's corner
Topic: Spot on FoV driving me insane
Replies: 30
Views: 1124

Re: Spot on FoV driving me insane

You can rule out the binocular head by rotating it and see if the spot moves. What is that slide just below the head in front?
by Charles
Tue Dec 01, 2020 6:28 pm
Forum: Beginner's corner
Topic: Cleaning slides lifehack
Replies: 7
Views: 534

Re: Cleaning slides lifehack

I just let them soak in a warm dishwashing soap and water for a few minutes, then clean with a cleaning cloth and then rinse in hot water and as they are drip drying, dry with a lint free cloth.
by Charles
Tue Dec 01, 2020 6:24 pm
Forum: Beginner's corner
Topic: Swift Objective Lens Question
Replies: 3
Views: 301

Re: Swift Objective Lens Question

I would think D is for DIN and RD is for Retractable DIN. Retractable in that the tip will retract into the barrel when the tip touches the slide.
by Charles
Mon Nov 30, 2020 8:29 pm
Forum: Microscopes and optics
Topic: Zeiss Achromat-Aplanat 465277 turret condenser - help needed
Replies: 14
Views: 725

Re: Zeiss Achromat-Aplanat 465277 turret condenser - help needed

That's not really too bad shape once you clean it up and blacken the edges. I do believe that is a darkfield stop in there too.

Yes, you are missing the bearing which goes on that spring. Perhaps it fell out as you were disassembling it.
by Charles
Sat Nov 28, 2020 3:06 pm
Forum: Beginner's corner
Topic: STAINS.. Sooo many these days
Replies: 7
Views: 650

Re: STAINS.. Sooo many these days

This stain uses crystal violet - which creates cancer. In my view one should have some experience in preparation before using stain of this level. It is too easy to stain ones thumb! Happened recently on a group meeting... There is always some type of risk in most chemicals these days. I performed ...
by Charles
Sat Nov 28, 2020 3:00 pm
Forum: Pictures and Videos
Topic: Actinoptychus sp.
Replies: 4
Views: 354

Re: Actinoptychus sp.

75RR wrote:
Sat Nov 28, 2020 6:23 am
It is a little blown-out on the bottom left edge, due I think to the camera not being perfectly parallel.
Or it maybe the mounted diatom maybe askew a bit? either way, shouldn't stacking bring everything into proper focus?
by Charles
Sat Nov 28, 2020 2:56 pm
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Zeiss 12v 100w Halogen Lamphouse focusing lens
Replies: 4
Views: 353

Re: Wanted: Zeiss 12v 100w Halogen Lamphouse focusing lens

I just acquired two lamphouses without lamps and can send you the piece. Email me your mailing address.
by Charles
Thu Nov 26, 2020 7:37 pm
Forum: For forum members who want to buy and sell equipment
Topic: American Optical 20x Infinity Objectives
Replies: 2
Views: 371

Re: American Optical 20x Infinity Objectives

There is an AO 20X 1022 in this lot of objectives. You might ask the seller if he will sell it separately.
https://www.ebay.com/itm/Lot-of-65-Vari ... SwvWFfvqVw
by Charles
Sun Nov 22, 2020 8:01 pm
Forum: Microscopes and optics
Topic: Interesting Attachment......ID???
Replies: 10
Views: 928

Re: Interesting Attachment......ID???

Here is a Zeiss point count mechanical stage:
Zeiss Point Count Mech Stage.jpg
Zeiss Point Count Mech Stage.jpg (88.37 KiB) Viewed 851 times
On a Pol scope:
Zeiss Rotating Stage with Point Count Mech Stage.jpg
Zeiss Rotating Stage with Point Count Mech Stage.jpg (93.07 KiB) Viewed 851 times
by Charles
Sun Nov 22, 2020 7:30 pm
Forum: Microscopes and optics
Topic: Interesting Attachment......ID???
Replies: 10
Views: 928

Re: Interesting Attachment......ID???

This is a Leitz mechanical slide holder which goes on a rotating stage for polarizing light microscopy. The bare 'knobs' are fitted with different click stops used in the identification of minerals. The bracket hits the grooves in the different click stops making a click sound as you move the slide ...
by Charles
Sat Nov 21, 2020 10:54 pm
Forum: Beginner's corner
Topic: Please help in choosing a microscope
Replies: 2
Views: 777

Re: Please help in choosing a microscope

Your question has been asked many times and you can do a search to find them. Ten people will give you ten different suggestions. For a starter look at some of Microbe Hunter's Oliver's YouTube video:
https://www.youtube.com/watch?v=gKeOuec2KVY
https://www.youtube.com/watch?v=rU25mfiXktA