Search found 1108 matches

by Charles
Wed May 16, 2018 11:53 am
Forum: Microscopes and optics
Topic: Zeiss Universal - Where to Buy?
Replies: 13
Views: 2372

Re: Zeiss Universal - Where to Buy?

Another option is this Photomicroscope II from the same seller. This one has an auxiliary lighting base with both 12V 60W transmitted light and 200W HBO light system. It also has the Fluoro IIIR system with filters (which uses the 200W HBO light), phase condenser, in-base filter system and a very ha...
by Charles
Wed May 16, 2018 11:32 am
Forum: Microscopes and optics
Topic: Zeiss Universal - Where to Buy?
Replies: 13
Views: 2372

Re: Zeiss Universal - Where to Buy?

All of my Zeiss Universal/Photomicroscopes were bought on ebay: Zeiss PMI, PMII, PMIII and Universal.jpg The things you need to look for primarily is delamination of optical components. There are three main versions of the Universal which were made when it's corresponding Photomicroscopes were made....
by Charles
Thu May 03, 2018 9:42 pm
Forum: Pictures and Videos
Topic: Diatom?
Replies: 8
Views: 1228

Re: Diatom?

Yup. I think 75RR gets the prize!
by Charles
Thu May 03, 2018 9:08 pm
Forum: Pictures and Videos
Topic: Diatom?
Replies: 8
Views: 1228

Re: Diatom?

Not a diatom but probably a radiolaria.
by Charles
Sat Apr 28, 2018 8:09 pm
Forum: Identification help
Topic: Diatom skeletons
Replies: 4
Views: 1489

Re: Diatom skeletons

I can't tell. Perhaps they are in girdle view.
by Charles
Sat Apr 28, 2018 8:05 pm
Forum: Specimens, samples and slides
Topic: Thoughts about diatom cleaning
Replies: 46
Views: 9081

Re: Thoughts about diatom cleaning

I have not known of any acids destroying or degrading diatoms but bases will. So don't let the diatom sample soak in bases like chlorox for more than 4 hrs. I think most of your destruction is being caused by the centrifuge. I use H2O2 18-30% boil for 30-60 min, and then add K2Cr2O7 (Potassium Dichr...
by Charles
Sat Apr 28, 2018 7:27 pm
Forum: Miscellaneous
Topic: Tool advice, please
Replies: 39
Views: 7803

Re: Tool advice, please

I believe most of these bolts are tapered. One side is bigger than the other, so it can only come out in one direction.
by Charles
Sat Apr 28, 2018 2:46 pm
Forum: Miscellaneous
Topic: Tool advice, please
Replies: 39
Views: 7803

Re: Tool advice, please

There were spanner wrenches made with these scope but are hard to find. Here are two examples which I have. One side has the pins running horizontal and the other side has the pins running vertical...probably so no matter what position the pin holes were, you could get a good angle to tighten or loo...
by Charles
Sat Apr 28, 2018 2:16 pm
Forum: Collecting microscopes and slides
Topic: AO Spencer 15 with Pol or is it an Interference?
Replies: 21
Views: 5778

Re: AO Spencer 15 with Pol or is it an Interference?

There are a couple of documents on PS Neeley's site:
http://www.science-info.net/docs/Smith-Baker/
The second document shows the Smith-Baker Interference system on an AO 2 stand.

I believe the Interference system was the precursor to the DIC systems.
by Charles
Sat Apr 28, 2018 1:16 am
Forum: Collecting microscopes and slides
Topic: AO Spencer 15 with Pol or is it an Interference?
Replies: 21
Views: 5778

Re: AO Spencer 15 with Pol or is it an Interference?

I found the missing pieces for this AO Interference microscope I got over two years ago. It is missing one of the condensers (I think the 10X DF). Will be fun to play with this! :D
AO Baker Interference Set2.jpg
AO Baker Interference Set2.jpg (52.31 KiB) Viewed 4447 times
by Charles
Thu Apr 26, 2018 4:39 pm
Forum: Beginner's corner
Topic: How best to sell 1963 Reichert Zetopan and accessories to raise money for charity
Replies: 11
Views: 1952

Re: How best to sell 1963 Reichert Zetopan and accessories to raise money for charity

Thanks, Charles, selling in groups minimises work and probably nearly maximises money. Just one yellow-banded objective on its own sold recently for £165. Not sure whether the set of 4 would sell for 4X that or if they vary in value. The Polyphos universal condenser and it's yellow banded objective...
by Charles
Thu Apr 26, 2018 4:22 pm
Forum: Beginner's corner
Topic: How best to sell 1963 Reichert Zetopan and accessories to raise money for charity
Replies: 11
Views: 1952

Re: How best to sell 1963 Reichert Zetopan and accessories to raise money for charity

You could sell this with the description you have with plenty of pictures. You could sell as a whole package or with separate groups of accessories Your higher cost items are the Polyphos universal condenser with the yellow banded objectives and th interference contrast condenser with the interferen...
by Charles
Wed Apr 25, 2018 11:15 am
Forum: Pictures and Videos
Topic: 2 marine diatoms
Replies: 20
Views: 1814

Re: 2 marine diatoms

Beautiful live diatoms.

The first is an Amphora obtusa and I think you are right on the second as being Actinocyclus.
by Charles
Wed Apr 25, 2018 1:09 am
Forum: Introduce yourself
Topic: Hello from North Carolina
Replies: 13
Views: 3891

Re: Hello from North Carolina

The adapter slides into the phototube the same distance as an eyepiece and it is quite secure. Modern DSLRs without lens are pretty light and I could probably tilt my scopes with camera connected over 45 degrees. But, you can also use those eyepice USB cameras as well. Looking and comparing your cam...
by Charles
Wed Apr 25, 2018 12:58 am
Forum: Introduce yourself
Topic: Hello from North Carolina
Replies: 13
Views: 3891

Re: Hello from North Carolina

Those are the photo tubes which came with the camera ports. The 34mm tube makes it parfocal on the AO 580 and the 130mm tube parfocal on the B&L. You can also use a USB camera with those tubes. I don't see these phototubes come out on ebay much, so you may need to get some one to turn them on a lath...
by Charles
Wed Apr 25, 2018 12:38 am
Forum: Introduce yourself
Topic: Hello from North Carolina
Replies: 13
Views: 3891

Re: Hello from North Carolina

Welcome Scarodactyl, I am just North of you in VA. The simplest solution is a proper phototube and then either a eyepiece USB camera or eyepiece to camera adapter for your AO 580 and B&L S7. Here are a couple of photos showing my setup with both the AO 580 and B&L S7. First the AO 580 with a 34mm ph...
by Charles
Sat Apr 21, 2018 4:40 pm
Forum: My microscope
Topic: Zeiss Standard
Replies: 7
Views: 4497

Re: Zeiss Standard

Congratulations on your Zeiss Standard. Concerning the light. You have two lighting methods on that scope. The in base light is for use in transmitted light, The HBO light is for use with the fluorescence use and requires a separate power transformer. The fluorescence unit should already have a fluo...
by Charles
Tue Apr 17, 2018 4:19 pm
Forum: Microscopes and optics
Topic: [asking for help] objective lens stuck in the wheel
Replies: 10
Views: 1704

Re: [asking for help] objective lens stuck in the wheel

Another alternative to the leather in the above is rubber. Rubber grips very well.
by Charles
Tue Apr 17, 2018 10:47 am
Forum: Microscopes and optics
Topic: Seeking advice on glueing the 45 deg mirror under the field aperture back in place (Zeiss) - Solved.
Replies: 55
Views: 5658

Re: Seeking advice on glueing the 45 deg mirror under the field aperture back in place (Zeiss)

The position of the mirror is not critical. The angle of the frame and screwing in the back plate will give you the proper angle. The cork backing with the back plate and not glue, is what keeps the mirror in place. I think the 'glue' you see, is what is holding the cork in place. You may need to re...
by Charles
Tue Apr 17, 2018 12:45 am
Forum: Resources (online, books etc.)
Topic: The 820 Microtome has turned 100 Years Old
Replies: 3
Views: 1486

Re: The 820 Microtome has turned 100 Years Old

This Spencer Catalog is great. It even has my Spencer slide cabinet on page 139:
Spencer Slide Cabinet.JPG
Spencer Slide Cabinet.JPG (67.58 KiB) Viewed 1450 times
Which matches mine in the middle:
Antique Slide Holders.jpg
Antique Slide Holders.jpg (90.61 KiB) Viewed 1450 times
by Charles
Tue Apr 17, 2018 12:28 am
Forum: Resources (online, books etc.)
Topic: The 820 Microtome has turned 100 Years Old
Replies: 3
Views: 1486

Re: The 820 Microtome has turned 100 Years Old

I have one of the older black models but didn't know that model was that old.
viewtopic.php?f=14&t=762
by Charles
Mon Apr 16, 2018 11:21 pm
Forum: Microscopes and optics
Topic: Seeking advice on glueing the 45 deg mirror under the field aperture back in place (Zeiss) - Solved.
Replies: 55
Views: 5658

Re: Seeking advice on glueing the 45 deg mirror under the field aperture back in place (Zeiss)

All the field aperture mirrors on my Zeiss are not glued on. There should be a metal back plate which holds the mirror in place. Also the iris should never be lubricated and should be kept bare metal. There are two sets of three screws on the top. The three very small screws on the ring which keeps ...
by Charles
Mon Apr 16, 2018 11:27 am
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

Fan, Most of these slides with the shells and foramin are mounted on slides with a ringed top to hold the coverglass off the specimen so as not to crush delicate specimens..
by Charles
Mon Apr 16, 2018 11:25 am
Forum: Pictures and Videos
Topic: more centric diatoms
Replies: 10
Views: 950

Re: more centric diatoms

With my Zeiss Planapo 40/1.0 the Plan 40 slider did not work. Seems Zeiss made different variants of the objective. Rather than the objective or the slider it may be the condenser Wollaston prism that is at fault. I have seen different catalogue numbers on some of them. Mine has 43 44 05 ≧ 40 and 4...
by Charles
Sun Apr 15, 2018 3:46 pm
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

The three slide storage cabinets:

The left I think is the oldest one with wood cabinet with tin slide trays.
The middle is an all metal cabinet made by Spencer Buffalo.
The one one right is my latest all wood addition.
Antique Slide Holders.jpg
Antique Slide Holders.jpg (90.61 KiB) Viewed 2752 times
by Charles
Sun Apr 15, 2018 3:43 pm
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

Hi Bill, I also use these cardboard slide holders as temporary slide holders: https://www.ebay.com/itm/Microscope-Slide-Mailer-For-20-slides-10-pieces/152145808579?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649 , and one could just put these in a box. I only use them as temporary...as i...
by Charles
Sun Apr 15, 2018 3:00 pm
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

What kind of micro shell do you have on slides, Charles? Would it be difficult to show a few photos? Do they look like those in Pensacola sand: http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=6&t=3697&p=33430&hilit=Pensacola+shell#p33430 Kurt and I are both seashell collectors. For Fa...
by Charles
Wed Apr 11, 2018 6:53 pm
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

Hi Bill, I also use these cardboard slide holders as temporary slide holders: https://www.ebay.com/itm/Microscope-Slide-Mailer-For-20-slides-10-pieces/152145808579?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649 , and one could just put these in a box. I only use them as temporary...as in...
by Charles
Wed Apr 11, 2018 6:49 pm
Forum: Microscopes and optics
Topic: Brass Spencer 20x N.A. .050 Objective Spotted
Replies: 2
Views: 661

Re: Brass Spencer 20x N.A. .050 Objective Spotted

I think the N.Ap means Numerical Aperture instead of Apo or Semi-apo. I believe all AO 20X objectives have and NA of 0.50.
by Charles
Tue Apr 10, 2018 4:28 pm
Forum: Collecting microscopes and slides
Topic: Antique Slide Cabinet and Slides
Replies: 22
Views: 3029

Re: Antique Slide Cabinet and Slides

Thank you all for your comments. I am very pleased with this cabinet and slides. I have two other slide cabinets. One is an all steel cabinet with steel trays made by Spencer, and the other has the wood cabinet with tin trays. But this all wood one is my new favorite! :D To answer some of the questi...