Search found 1286 matches

by Charles
Mon Oct 19, 2020 12:03 pm
Forum: Microscopes and optics
Topic: Zeiss Universal/Photomicroscope stage?
Replies: 4
Views: 151

Re: Zeiss Universal/Photomicroscope stage?

MicroBob wrote:
Sun Oct 18, 2020 6:30 am
As long as it is Zeiss West/Standard system and not Zeiss Jena...
Yes, indeed.
by Charles
Mon Oct 19, 2020 12:02 pm
Forum: Microscopes and optics
Topic: Best bang for the buck Zeiss Objectives?
Replies: 5
Views: 114

Re: Best bang for the buck Zeiss Objectives?

I would also say Neofluars will give you the most bang for the buck and often can be found for around $100.
by Charles
Sat Oct 17, 2020 9:31 pm
Forum: Microscopes and optics
Topic: Zeiss Universal/Photomicroscope stage?
Replies: 4
Views: 151

Re: Zeiss Universal/Photomicroscope stage?

Most Zeiss stages will fit your Zeiss Universal/Photomicroscope stand. The main thing is you need the stage holder which clips onto your focus block. Here is one on ebay with the holder: For $90 plus shipping with the holder: https://www.ebay.com/itm/Microscope-Stage-w-Holder-Zeiss/324334460790?hash...
by Charles
Fri Oct 16, 2020 11:12 am
Forum: Microscopes and optics
Topic: A blast from Nikon's past
Replies: 4
Views: 166

Re: A blast from Nikon's past

I am not familiar with Nikon microscope systems but everyone seems to be calling this a epi DIC system, but it has a DIC condenser for transmitted light and a separate transmitted light phase condenser. So is this both epi and transmitted DIC?
by Charles
Fri Sep 25, 2020 12:28 pm
Forum: Miscellaneous
Topic: inverted zeiss table mod
Replies: 8
Views: 289

Re: inverted zeiss table mod

I will have to break it out of storage and take a look at the stage. The stage did come with the scope is specific for the inverted and probably does have different structure to allow for the objective clearance. The extenders are DIC holders with DIC slides.
by Charles
Fri Sep 25, 2020 12:23 pm
Forum: Beginner's corner
Topic: Advice on decent microscope for aquatic samples
Replies: 14
Views: 523

Re: Advice on decent microscope for aquatic samples

The Black WL is decently priced for what it has on it. Rotating stage runs about $150-200, each of the Phase Neofluars run about $100-150, the Phase condenser with 1-2-3 phase and darkfield would run about $200, the rest of the stand with focus block, lighting, binocular head with eyepieces another ...
by Charles
Thu Sep 24, 2020 11:49 pm
Forum: Miscellaneous
Topic: inverted zeiss table mod
Replies: 8
Views: 289

Re: inverted zeiss table mod

It is a 5 objective turret.
by Charles
Thu Sep 24, 2020 1:48 pm
Forum: For forum members who want to buy and sell equipment
Topic: A.O. dark/phase objectives wanted
Replies: 7
Views: 615

Re: A.O. dark/phase objectives wanted

I have a 20X 1212and 100X 1214 dark Phase objectives
by Charles
Thu Sep 24, 2020 1:10 pm
Forum: Beginner's corner
Topic: Advice on decent microscope for aquatic samples
Replies: 14
Views: 523

Re: Advice on decent microscope for aquatic samples

I think I definitely want to go the used route, so will keep reading and researching as there does seem to be some risk in used if you don’t know what you are looking for. On that note, are there reputable used microscope dealers out there that take some of the risk out of the equation for a newbie...
by Charles
Thu Sep 24, 2020 12:44 pm
Forum: Miscellaneous
Topic: inverted zeiss table mod
Replies: 8
Views: 289

Re: inverted zeiss table mod

What objectives are those? Would regular Zeiss objectives have fit without the cutting? Here is my Zeiss Inverted and the objectives can be turned without hitting the bottom.
Zeiss Inverted with DIC.jpg
Zeiss Inverted with DIC.jpg (94.24 KiB) Viewed 234 times
by Charles
Thu Sep 10, 2020 11:44 pm
Forum: My microscope
Topic: Carl Zeiss Jena Nr. 154618 help!
Replies: 12
Views: 1303

Re: Carl Zeiss Jena Nr. 154618 help!

Great you got the proper model and date. I get my Zeiss information from a book by Lawrence Gubas. He had a picture of the A stand but did not have the B stand. In the book he states they are very similar but the B is bigger than the A. So I took the serial number for the A stand which shows 1924. T...
by Charles
Wed Sep 09, 2020 3:29 pm
Forum: My microscope
Topic: Carl Zeiss Jena Nr. 154618 help!
Replies: 12
Views: 1303

Re: Carl Zeiss Jena Nr. 154618 help!

My wife will burn scented candles whenever I use it cleaning my guns inside the house. After awhile, you get use to the smell. :)
by Charles
Wed Sep 09, 2020 12:33 pm
Forum: My microscope
Topic: Carl Zeiss Jena Nr. 154618 help!
Replies: 12
Views: 1303

Re: Carl Zeiss Jena Nr. 154618 help!

It's always good to get different opinions and never throw caution to the wind. You can wash in soap and water but make sure it drys completely or it will corrode. After washing and drying, make sure you add a protectant like Renaissance wax and grease/oil the moving parts. If you look in Collecting...
by Charles
Tue Sep 08, 2020 10:23 pm
Forum: My microscope
Topic: Carl Zeiss Jena Nr. 154618 help!
Replies: 12
Views: 1303

Re: Carl Zeiss Jena Nr. 154618 help!

That is the A stand model with the serial number dates it to 1924. The 100X is not original and is newer. The rack and pinion below the condenser is for oblique lighting. The mechanical stage is more modern and is not original and probably made in Leiden, Netherlands. Most of the high end Zeiss scop...
by Charles
Tue Sep 01, 2020 7:21 pm
Forum: Pictures and Videos
Topic: Leitz phaco NPL objetives with HEINE condenser
Replies: 8
Views: 468

Re: Leitz phaco NPL objetives with HEINE condenser

Do you have images taken with the PV 10X and PV 20X objectives?
by Charles
Sat Aug 29, 2020 12:00 am
Forum: Beginner's corner
Topic: Careless Mistakes
Replies: 21
Views: 1286

Re: Careless Mistakes

How did you break the slide and not the cover glass? Was this a strew or mounted diatoms? Most diatom mounters mount to the cover glass, so you maybe able to mount that cover slip to another microscope slide, if you know what type of mountant was used and then transfer the labels.
by Charles
Sat Aug 22, 2020 3:34 pm
Forum: Specimens, samples and slides
Topic: New Diatom Project
Replies: 64
Views: 5902

Re: New Diatom Project

For diatom picking up and placing back down, the three YouTube videos can give you an idea how to handle problem diatoms which stick to your needle. You can rub it against the glass slide, you can use a larger diatom to knock it off the needle, you can take it back to the strew, and pick it up diffe...
by Charles
Sat Aug 22, 2020 2:49 pm
Forum: Microscopes and optics
Topic: How do you recognize delamination?
Replies: 3
Views: 728

Re: How do you recognize delamination?

The easiest way for me is to look at the lens with light shining through/on it from different angles. If there is delamination, you can see rainbowish color or what looks like cloudiness on the lens. Most start at the edges but some can go through the center. If you have a stereo scope, you can also...
by Charles
Sat Aug 22, 2020 2:42 pm
Forum: Beginner's corner
Topic: What's the best way to examine sediment-dwelling protozoa?
Replies: 3
Views: 708

Re: What's the best way to examine sediment-dwelling protozoa?

What I do for hunting diatoms from sediment, I think you could do the same. Collect a bunch of sediment in a test tube or jar, add water to the sediment and shake into a mixture. Let it settle for a few seconds for the sand and gravel to settle and pour off the water with the sediment dwelling proto...
by Charles
Sat Aug 22, 2020 2:36 pm
Forum: Specimens, samples and slides
Topic: New Diatom Project
Replies: 64
Views: 5902

Re: New Diatom Project

Hi Doron, Yes there is a nice variety of species in all three fossil diatomite samples. The glass needles do come to a point so I am able to manipulate and pick up the smallest diatom. Perhaps you can also get your fiberglass needles to a point by holding a strand over a low flame with tension to bo...
by Charles
Fri Aug 21, 2020 2:37 pm
Forum: Specimens, samples and slides
Topic: New Diatom Project
Replies: 64
Views: 5902

Re: New Diatom Project

And some more:
Monterey Diatoms4.jpg
Monterey Diatoms4.jpg (55.69 KiB) Viewed 1223 times
Monterey Diatoms5.jpg
Monterey Diatoms5.jpg (55.9 KiB) Viewed 1223 times
Monterey Diatoms6.jpg
Monterey Diatoms6.jpg (59.7 KiB) Viewed 1223 times
Monterey Diatoms7.jpg
Monterey Diatoms7.jpg (60.67 KiB) Viewed 1223 times
Monterey Diatoms8.jpg
Monterey Diatoms8.jpg (61.16 KiB) Viewed 1223 times
by Charles
Fri Aug 21, 2020 2:34 pm
Forum: Specimens, samples and slides
Topic: New Diatom Project
Replies: 64
Views: 5902

Re: New Diatom Project

Was hoping to get this update done earlier but had to clean up a lot of down trees and damage when hurricane Isaias came for a visit. And then a couple days later, a lighting strike set my large 16X12 barn shed on fire. A lovely week and month! I set about getting the Monterey specimen sorted throug...
by Charles
Thu Aug 20, 2020 1:21 pm
Forum: Microscopes and optics
Topic: Heat resistant collecting lenses for Zeiss?
Replies: 5
Views: 506

Re: Heat resistant collecting lenses for Zeiss?

Pete,

The fittings are the same for round or square 12V 100W lamp house and are interchangeable. The round lamp house seems to get a lot hotter than the square ones.
by Charles
Fri Aug 14, 2020 9:21 pm
Forum: Microscopy accessories
Topic: Zeiss Rotating Stage - Need Help
Replies: 19
Views: 1499

Re: Zeiss Rotating Stage - Need Help

I would also remove the brake and sprays some solvent...WD40 between the white and brass and start working it.
by Charles
Tue Aug 11, 2020 10:49 pm
Forum: Microscopes and optics
Topic: Help me with coarse focus Zeiss Amplival to loose.
Replies: 5
Views: 785

Re: Help me with coarse focus Zeiss Amplival to loose.

What I am reading is you grab the coarse focus knobs, one in each hand and turn them in opposite directions. Clockwise to tighten and counterclockwise to loosen.
by Charles
Mon Aug 10, 2020 2:17 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB Slide Storage Cabinet
Replies: 15
Views: 1236

Re: WTB Slide Storage Cabinet

Hello all! I recently (like yesterday) began my journey in permanent slide making. However the issue of storsge came to mind, so I am interested in one! Does anyone have any they are willing to se, or any they recommend? Thanks! If you want slide cabinets which store the slides flat, you can go rea...
by Charles
Fri Aug 07, 2020 10:34 pm
Forum: Microscopes and optics
Topic: Help with disassembly and repair of zeiss phase condenser
Replies: 21
Views: 1983

Re: Help with disassembly and repair of zeiss phase condenser

DrPhoxinus wrote:
Thu Aug 06, 2020 1:48 pm
May I ask you how many scopes do you own?
Gerard, I own quite a few...hundred? I don't know the count and no estimate. I like collecting the old, rare and interesting microscopes and stereo scopes
by Charles
Fri Aug 07, 2020 10:31 pm
Forum: Specimens, samples and slides
Topic: Attempts at Diatom Arranging
Replies: 11
Views: 1148

Re: Attempts at Diatom Arranging

KurtM wrote:
Fri Aug 07, 2020 6:41 pm
I guess next up is experiment with further thinning the Naphrax, which is already of a watery consistency.
Kurt, I think you should go thicker. The more Toluene you use to dilute the more it will bubble? Also try heating the adhesive after the arrangement.
by Charles
Fri Aug 07, 2020 1:14 pm
Forum: Specimens, samples and slides
Topic: Attempts at Diatom Arranging
Replies: 11
Views: 1148

Re: Attempts at Diatom Arranging

Hi Kurt, Moving frustules while heating the mountant has been a constant problem in my mounts. Can you explain your method? What adhesive did you use? After arranging and before the mountant, did you dry the adhesive first by heating? Did you use a drop of solvent (Toluene)first to evacuate the air ...