Search found 142 matches

by mnmyco
Sat Oct 12, 2019 6:40 am
Forum: Beginner's corner
Topic: Fusing glass slides
Replies: 23
Views: 4843

Re: Fusing glass slides

I once fused the bottom of a Pyrex jar to the top of a ceramic heater. I was converting sodium bicarbonate to sodium carbonate and forgot the thing on the highest setting. You could try putting glass water between the in slides, heat it until the water leaves creating hard silica and use a technique...
by mnmyco
Fri Oct 11, 2019 8:58 pm
Forum: Microscopes and optics
Topic: Leitz binocular head teardown
Replies: 9
Views: 2194

Re: Leitz binocular head teardown

That looks like fungal damage that is not possible to repair.
by mnmyco
Fri Oct 11, 2019 8:47 pm
Forum: My microscope
Topic: DIY DIC Effect on Darkfield.... unreal
Replies: 6
Views: 2782

Re: DIY DIC Effect on Darkfield.... unreal

That is basically oblique lighting from what I saw. I just toss a quarter over the light sometimes for the same thing.

MNMyco
by mnmyco
Fri Oct 11, 2019 6:07 pm
Forum: Home-made microscope adaptations
Topic: AO-Reichert 1973A condenser DIY help request
Replies: 14
Views: 4623

Re: AO-Reichert 1973A condenser DIY help request

Here is what I was sent. Very tight fit. If they are the right parts they are not from the same housing as the one that was sent. Thanks for the info on the polarizing condenser. I figured that is was red meant. Interestingly, that condenser has the notch to fit on the fork of my series 10 and 20. I...
by mnmyco
Fri Oct 11, 2019 5:39 am
Forum: Identification help
Topic: Amoeboid infected with parasites?
Replies: 7
Views: 2911

Re: Amoeboid infected with parasites?

I would guess it is food being digested via phagocytosis.

MNMyco
by mnmyco
Fri Oct 11, 2019 4:58 am
Forum: Home-made microscope adaptations
Topic: AO-Reichert 1973A condenser DIY help request
Replies: 14
Views: 4623

Re: AO-Reichert 1973A condenser DIY help request

Finally arrived today. Seller included the bottom cell of elements, but it is still missing the middle cell. If the 1973A shares the same number and layout as the 1973. Apo, if possible, could you post a photo of the separate parts of the condenser? I would like to show the seller In case he does ha...
by mnmyco
Tue Oct 08, 2019 5:34 pm
Forum: Microscopes and optics
Topic: Polarizing filter delamination?
Replies: 8
Views: 1703

Re: Polarizing filter delamination?

There are fairly inexpensive glass polarizers on eBay. For example SVBONY. Diameter 25mm and probably other sizes too. They are sold installed in metal sleeves but the sleeve can be easily dismantled to extract the glass disc. Would'nt it be possible to replace the delaminated piece in the condense...
by mnmyco
Tue Oct 08, 2019 5:52 am
Forum: Specimens, samples and slides
Topic: Tried glycerin to slow down fast movers
Replies: 36
Views: 13284

Re: Tried glycerin to slow down fast movers

For methylcellulose, bring water to near boil and add in metheylcellulose. Do this while mixing and mix rapidly until no large clumps can be see. This prevents clumping as methylcellulose is actually insoluble at higher temps. Cool with rapid, constant stirring and you will get a nice solution. Meth...
by mnmyco
Tue Oct 08, 2019 5:46 am
Forum: Microscopes and optics
Topic: Polarizing filter delamination?
Replies: 8
Views: 1703

Re: Polarizing filter delamination?

Just got it apart. It is in between two glass disks and that is where it has become separated from both. I think this means it should work. Has anyone worked on an issue like this and have advice?
by mnmyco
Tue Oct 08, 2019 3:11 am
Forum: Home-made microscope adaptations
Topic: AO-Reichert 1973A condenser DIY help request
Replies: 14
Views: 4623

Re: AO-Reichert 1973A condenser DIY help request

I am a bit unclear on what was sent, but from the sellers email is sounds like he sent everything. Apparently, they have 20+ pieces, but are not all complete and in unknown condition. So, they don’t advertise them as complete. The image shows the housing and the top lens set in the brass piece. We w...
by mnmyco
Tue Oct 08, 2019 3:02 am
Forum: Microscopy accessories
Topic: Olympus equipment ID request
Replies: 2
Views: 2306

Re: Olympus equipment ID request

Here are pictures you can just see. https://hosting.photobucket.com/images/aa169/Mnmmyco/0/8b5ba3df-c00f-466d-aa09-944a690f900d-original.jpg?width=1920&height=1080&fit=bounds https://hosting.photobucket.com/images/aa169/Mnmmyco/0/908761fa-a5a3-415f-a7cc-7163044bb2f5-original.jpg?width=1920&height=10...
by mnmyco
Tue Oct 08, 2019 2:44 am
Forum: Microscopes and optics
Topic: Polarizing filter delamination?
Replies: 8
Views: 1703

Polarizing filter delamination?

I recently purchased a AO polarizing condenser, but the filter looks a bit odd.

Image

Is this an issue?

MNMyco
by mnmyco
Sun Oct 06, 2019 11:36 pm
Forum: Home-made microscope adaptations
Topic: AO-Reichert 1973A condenser DIY help request
Replies: 14
Views: 4623

Re: AO-Reichert 1973A condenser DIY help request

I have purchased a 1201 as well, but the seller did email me and let me know he included what is believed to be the other lens for the 1973A. Once I get it I will post here and let you know what materials I received and what you think I can do with those. I am unclear if all the pieces, besides the ...
by mnmyco
Sun Oct 06, 2019 11:34 pm
Forum: Beginner's corner
Topic: minimizing harm
Replies: 61
Views: 27448

Re: minimizing harm

UV is inherently deadly to life. Keep in mind that microbes in nature can seek the depths to avoid UV as well as seek what shade there is. Neither are a realistic options to microbes on a slide. UV will always cause damage to DNA and the ability to repair that damage depends on the species we are ta...
by mnmyco
Sat Oct 05, 2019 12:38 am
Forum: Home-made microscope adaptations
Topic: AO-Reichert 1973A condenser DIY help request
Replies: 14
Views: 4623

AO-Reichert 1973A condenser DIY help request

I have managed to find the housing and top lens for a 1973A 1.4 NA achromatic condenser. I know that Apo has made a DIY version with these pieces in the past. So, I am soliciting help and advice for attempting some sort of rebuild. I’m a bit l lazy, but if anyone is interested I will find the eBay l...
by mnmyco
Sat Oct 05, 2019 12:30 am
Forum: Beginner's corner
Topic: minimizing harm
Replies: 61
Views: 27448

Re: minimizing harm

Sorry if this is a repeat, but you can block most or all UV with just some clear plastic filters. Lexan will basically block all UV light, though IR will be transmitted. http://www.plasticgenius.com/2011/05/infrared-and-ultraviolet-transmission.html https://www.acplasticsinc.com/informationcenter/r/...
by mnmyco
Sat Oct 05, 2019 12:17 am
Forum: Pictures and Videos
Topic: Peranema eating a dead rotifer
Replies: 9
Views: 1873

Re: Peranema eating a dead rotifer

You should try to stain the rotifers with a very weak solution of Congo red and then feed it to the Peranema. You should be able to watch the color change due to the pH. I have down this with yeast and paramecium for an intro bio lab. The students didn’t see much though as they a rather poor at usin...
by mnmyco
Tue Oct 01, 2019 7:55 pm
Forum: Microscopes and optics
Topic: First Surface Mirror?
Replies: 13
Views: 3899

Re: First Surface Mirror?

I found this website about using hard drive platters in laser as mirrors. In case anyone is interested to read it I posted it here. I think I will try cutting some soon.

http://www.imajeenyus.com/optical/20140 ... ndex.shtml

MNMyco
by mnmyco
Tue Oct 01, 2019 7:50 pm
Forum: For forum members who want to buy and sell equipment
Topic: Bausch & Lomb Type H, 1932-3...SOLD....
Replies: 10
Views: 4236

Re: Bausch & Lomb Type H, 1932-3...SOLD....

The B & L is in great condition. I hope it ends up in something better than a display cabinet.

MNMyco
by mnmyco
Sun Sep 29, 2019 3:26 am
Forum: Pictures and Videos
Topic: A Mixture of Things Within Moss
Replies: 9
Views: 1005

Re: A Mixture of Things Within Moss

Keep an eye out for tardigrades in your moss.
by mnmyco
Sat Sep 28, 2019 4:22 pm
Forum: Pictures and Videos
Topic: A Mixture of Things Within Moss
Replies: 9
Views: 1005

Re: A Mixture of Things Within Moss

The “beads” are probably cyanobacteria, such as Nostoc species.
by mnmyco
Tue Sep 24, 2019 5:01 am
Forum: Microscopes and optics
Topic: AO 1245 Repair and Trinocular Reassembly
Replies: 3
Views: 1116

AO 1245 Repair and Trinocular Reassembly

I recently obtained an AO 1245 aperture viewing unit for my series 20 phase system. Sadly, one of the small mirror is loose and another broken. I don’t think the broken one will be too much of an issue as this is just for aligning the phase annuli. I am not sure what is the best method to glue the o...
by mnmyco
Sun Sep 22, 2019 9:08 pm
Forum: Camera systems and imaging
Topic: Adapter accessory
Replies: 2
Views: 1534

Re: Adapter accessory

Looks like something that would clamp onto tubing.
by mnmyco
Sun Sep 22, 2019 9:07 pm
Forum: Microscopy accessories
Topic: AO turret and condenser ID request
Replies: 4
Views: 3112

Re: AO turret and condenser ID request

Thanks. I was guessing it was newer than my 1242. Do you know a turret model 1986? No number on the condenser but it looks similar to a 1242. I will try to find the posting again.
by mnmyco
Sun Sep 22, 2019 4:53 am
Forum: Microscopy accessories
Topic: AO turret and condenser ID request
Replies: 4
Views: 3112

AO turret and condenser ID request

Hi, Saw this on ebay [url]https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F323517651847[\url] I am interested in AP equipment lately after receiving a free AO20 body and transformer. The above piece does not have any cat # I could see so hopefully some the resident AO...
by mnmyco
Sun Sep 22, 2019 4:49 am
Forum: Specimens, samples and slides
Topic: Snakeskin specimen
Replies: 13
Views: 4867

Re: Snakeskin specimen

This is an earlier edition (1958), of A Sourcebook for the Biological Sciences https://ia801003.us.archive.org/26/items/teachinghighscho00morh/teachinghighscho00morh.pdf Very interesting/useful book. Pity they don't hand them out to students, would have been useful to know what the teacher intended...
by mnmyco
Sat Sep 21, 2019 6:01 pm
Forum: Microscopy accessories
Topic: Leitz wetzlar orthoplan 402a condenser does not rotate
Replies: 12
Views: 5494

Re: Leitz wetzlar orthoplan 402a condenser does not rotate

Old thread, but I wanted to add that the fine focus on my Ortholux is Bert easy to assemble and disassemble. I found the details I wanted by searching through old Leitz patents via google. I basically had to soak a Ortholux. In engine degreaser.

MNMyco
by mnmyco
Sat Sep 21, 2019 4:32 pm
Forum: Specimens, samples and slides
Topic: Snakeskin specimen
Replies: 13
Views: 4867

Re: Snakeskin specimen

I warm glycerin jelly on a coffee cup warmer or candle warmer. Works well and on some of the warmers the whole slide can also be placed flat on the heat plate. This book is dirt cheap on amazon and has tons of info for slide making, keeping various protists in culture, and other great info. https://...