Search found 1317 matches

by einman
Fri Mar 01, 2019 5:53 pm
Forum: Microscopes and optics
Topic: Chinese-made CMO SMZ-clones, now with a 15:1 zoom ratio
Replies: 3
Views: 1294

Re: Chinese-made CMO SMZ-clones, now with a 15:1 zoom ratio

I have purchased many scopes in the past solely to examine their performance and then sell them. It is relatively easy to do with the Big 5. However, whenever I purchased a Chinese made scope and tried to re-sell it I almost always did so at a loss. Like yourself I would be greatly interested in com...
by einman
Tue Feb 26, 2019 12:39 am
Forum: For forum members who want to buy and sell equipment
Topic: Looking for ND filter set for AO20 turret
Replies: 7
Views: 2193

Re: Looking for ND filter set for AO20 turret

Ok I have not seen a PM yet but will look later.
by einman
Tue Feb 26, 2019 12:39 am
Forum: Beginner's corner
Topic: How do the newer AO stereo zoom scopes compare to the classic Cycloptic?
Replies: 10
Views: 5210

Re: How do the newer AO stereo zoom scopes compare to the classic Cycloptic?

I prefer the 580 as well, for the ease of using the zoom and the higher magnification, without adding an aux objective. But, as you said, the Cycloptics is still a beautiful scope and the prices on Ebay are quite reasonable.
by einman
Sun Feb 24, 2019 10:30 pm
Forum: For forum members who want to buy and sell equipment
Topic: Looking for ND filter set for AO20 turret
Replies: 7
Views: 2193

Re: Looking for ND filter set for AO20 turret

I have 2 of the ND filters, 25% and 50% and the green.
by einman
Sun Feb 24, 2019 4:59 pm
Forum: Introduce yourself
Topic: Hello from London
Replies: 6
Views: 2911

Re: Hello from London

Welcome! As they say come on in the water is fine! LOL
by einman
Sun Feb 24, 2019 4:52 pm
Forum: Beginner's corner
Topic: Recommendations for a good text book to aid and explain what I am seeing.
Replies: 5
Views: 3680

Re: Recommendations for a good text book to aid and explain what I am seeing.

I have listed these before but here is another quick look. Many have already been mentioned. Pictures are easier than typing the authors etc! All of these texts can be found on Amazon or Abes books as mentioned for very reasonable prices. https://imagizer.imageshack.com/v2/800x600q90/923/NTRnZM.jpg ...
by einman
Wed Feb 20, 2019 3:33 pm
Forum: My microscope
Topic: My beast
Replies: 10
Views: 5442

Re: My beast

Glad to see another aficionado of the inverteds! I have an older Olympus, the IMT, that I enjoy immensely as well as a Biostar. Neither are as sophisticated as your beautiful scope but get the job done. I also notice you are using the smaller petri dishes. Are they 35 x 10mm or larger? I had a speci...
by einman
Sun Feb 17, 2019 4:30 pm
Forum: Beginner's corner
Topic: How do the newer AO stereo zoom scopes compare to the classic Cycloptic?
Replies: 10
Views: 5210

Re: How do the newer AO stereo zoom scopes compare to the classic Cycloptic?

American Optical introduced the Cycloptic in 1957. It was the first American made CMO (Common Main Objective) stereo scope. I say “American” because CMO’s were pioneered by Zeiss. Another way of describing this technology is to use the term parallel light path. It had perhaps the largest fixed worki...
by einman
Fri Feb 15, 2019 9:52 pm
Forum: My microscope
Topic: Wild M8
Replies: 31
Views: 15198

Re: Wild M8

In my comparisons, I found them similar to the Olympus SZH although smaller FOV. The Olympus SZH had an na of about 0.084 so with the Wild scopes placing between 0.07 and 1.0 depending on how how you evaluate them my observations make more sense, although I had no NA data for the Wilds until now. Fo...
by einman
Fri Feb 08, 2019 1:39 am
Forum: Pictures and Videos
Topic: Aeolosoma sp.
Replies: 11
Views: 3106

Re: Aeolosoma sp.

I agree -very nice resolution.
by einman
Mon Feb 04, 2019 7:56 pm
Forum: Pictures and Videos
Topic: Moss leaf tip update
Replies: 6
Views: 2084

Re: Moss leaf tip

Ok I will be critical here. Looks a bit out of focus.
by einman
Sun Feb 03, 2019 11:32 pm
Forum: Identification help
Topic: Aquatic worms
Replies: 1
Views: 1844

Re: Aquatic worms

Wow! Very nice videos!!
by einman
Sun Feb 03, 2019 11:31 pm
Forum: Identification help
Topic: Fan-shaped diatoms colony
Replies: 9
Views: 3279

Re: Fan-shaped diatoms colony

Your original photo is quite good and it looks like your research skills are better than you may have thought!
by einman
Sat Feb 02, 2019 6:34 pm
Forum: Pictures and Videos
Topic: Thalassionema sp. ?
Replies: 10
Views: 2734

Re: Thalassionema sp. ?

Very Nice as always. I enjoy using my Leitz FL 63/1.3 oel objective as well. I really need to start taking some photos as well.
by einman
Sat Feb 02, 2019 6:27 pm
Forum: Identification help
Topic: Fan-shaped diatoms colony
Replies: 9
Views: 3279

Re: Fan-shaped diatoms colony

Part of the fun in microscopy is attempting to identify the organisms you find. Any suggestions, guesses, inquiries based on your own research?
by einman
Sat Feb 02, 2019 6:25 pm
Forum: Pictures and Videos
Topic: Pound life under Zeiss Primostar microscope
Replies: 6
Views: 2274

Re: Pound life under Zeiss Primostar microscope

Very nice. I agree a 20X objective or even a 40X objective would work nicely. Plenty of clearance with any low power objective less than 40X.
by einman
Fri Feb 01, 2019 2:08 pm
Forum: Pictures and Videos
Topic: Polychaete
Replies: 9
Views: 2450

Re: Polychaete

It may be the same species, but mine had those round structures with dark center. I use microscope slide with cover glass and a space between them isn't too small for such animals and it's much easier watching them. From which lake had you taken this worm? Yes if I want more resolution I isolate th...
by einman
Fri Feb 01, 2019 2:06 pm
Forum: Pictures and Videos
Topic: Polychaete
Replies: 9
Views: 2450

Re: Polychaete

It is a private lake about 9 acres in size belonging to our neighborhood.
by einman
Fri Feb 01, 2019 1:06 am
Forum: Pictures and Videos
Topic: Polychaete
Replies: 9
Views: 2450

Re: Polychaete

Very nice video. I have seen many similar specimens in lake water samples that I assumed may be aeolosoma. Here is a video I made. The video is not quite as clear as yours. It was taken via an AO Biostar 1820 inverted scope almost 6 years ago. The objective obtains the image through the bottom of a ...
by einman
Tue Jan 29, 2019 10:12 pm
Forum: Introduce yourself
Topic: Hello, from Vienna, Austria -(Technically Mobile, Alabama USA)
Replies: 10
Views: 3681

Re: Hello, from Vienna, Austria -(Technically Mobile, Alabama USA)

Wow. I too was waiting to see a crusted over dirty mess. It actually looks to be in very good condition.
by einman
Tue Jan 29, 2019 5:29 pm
Forum: Pictures and Videos
Topic: Diatom
Replies: 10
Views: 2868

Re: Diatom

Wow! Very beautiful..and well done.
by einman
Tue Jan 29, 2019 5:10 pm
Forum: For forum members who want to buy and sell equipment
Topic: Nikon SMZ800 for sale SOLD
Replies: 0
Views: 2628

Nikon SMZ800 for sale SOLD

I listed a Nikon SMZ800 on E-bay. Excellent scope at an excellent price. Best price on E-bay by far. If interested take a look. Ask me any questions.

https://www.ebay.com/itm/292938821313

I am quite flexible on the pricing despite the fact it is already the lowest on E-bay.
by einman
Tue Jan 29, 2019 3:59 pm
Forum: Beginner's corner
Topic: Eye floaters
Replies: 14
Views: 7027

Re: Eye floaters

Generally you tend to ignore floaters over time or they settle to the bottom of the eye and are not noticeable. The significant floaters I have are "tethered" as it were to the lining of the eye and as such float like balloons. Should they finally break free they may settle given their size. There i...
by einman
Tue Jan 29, 2019 12:06 am
Forum: Microscopy accessories
Topic: Slide ringing table
Replies: 16
Views: 7878

Re: Slide ringing table

I was put off by Brunel's shipping cost to the US. Twice the cost of the table. Bioquip sells one I had put on my list for purchase although not as nice as some of these.
by einman
Mon Jan 28, 2019 8:17 pm
Forum: Beginner's corner
Topic: Eye floaters
Replies: 14
Views: 7027

Re: Eye floaters

Well since we are sharing..I have had 2 surgeries for retina detachment and have lots of floaters due to vitrous fluid detachment as well. 2 really large ones that often result in my swiping at non existent flies! As mentioned depending on how you hold your head and the settings on your condenser et...
by einman
Mon Jan 28, 2019 8:11 pm
Forum: Introduce yourself
Topic: Hello, fellow humans!
Replies: 8
Views: 3020

Re: Hello, fellow humans!

Welcome Sonequa..I mean Michael Burnham..uh..Spockssister..hmmm..Penny. You will enjoy this forum.
by einman
Sun Jan 27, 2019 2:43 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 4651

Re: Hydra and Bosmina = Gulp and Burp

Very Nice!!!
by einman
Sun Jan 27, 2019 1:46 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted a Leitz Diaplan 0.8x objective turret (FOUND)
Replies: 1
Views: 1911

Re: Wanted a Leitz Diaplan 0.8x objective turret

The microscope Gods have been smiling on me lately. I found both a 1.32 na condenser top and this past week a 0.8x nose turret. Two Items I have been searching for for quite some time. I am a happy man! LOL