Search found 1629 matches

by KurtM
Sat Dec 05, 2015 7:44 pm
Forum: Specimens, samples and slides
Topic: Homemade Micro-Aquariums and Slide Ringing Table
Replies: 28
Views: 7990

Re: Homemade Micro-Aquariums and Slide Ringing Table

Fan, I get pretty decent views through the inverted using plastic Petri dishes, but notice some distortion. I purchased some glass Petri's, but so far, more distortion, the plastics are still best. If you run across any in plastic or glass that are made to look *through* I hope you'll alert me (I su...
by KurtM
Sat Dec 05, 2015 4:00 pm
Forum: Specimens, samples and slides
Topic: Homemade Micro-Aquariums and Slide Ringing Table
Replies: 28
Views: 7990

Re: Homemade Micro-Aquariums and Slide Ringing Table

Thanks, Rod and CE! And thank you Fan, your comments and photo are very interesting (except there's nothing in your little tank!). First, using the microscope stage to mount your micro-aquarium is brilliant, and guaranteed to work better than my arrangement (while keeping in mind they're two differe...
by KurtM
Sat Dec 05, 2015 1:50 am
Forum: Specimens, samples and slides
Topic: Homemade Micro-Aquariums and Slide Ringing Table
Replies: 28
Views: 7990

Re: Homemade Micro-Aquariums and Slide Ringing Table

First consideration was make 'em easy to maintain so as to have fewest excuses not to use 'em over the long haul. Therefore, they're large enough to get a hand in, for cleaning, because I just happen to know that cleaning a sample container after several months tends to require some serious scrubbin...
by KurtM
Sat Dec 05, 2015 1:00 am
Forum: Specimens, samples and slides
Topic: Homemade Micro-Aquariums and Slide Ringing Table
Replies: 28
Views: 7990

Homemade Micro-Aquariums and Slide Ringing Table

A few months ago I posted a web page discussing my homemade micro-aquariums and slide ringing table, see: http://sawdustfactory.nfshost.com/Micro%20Aquariums/ The little aquariums have been just the thing for observing wee pond critters in a natural setting using a stereo microscope head on a photo ...
by KurtM
Tue Dec 01, 2015 2:01 am
Forum: Camera systems and imaging
Topic: Is there a decent photoshop replacement?
Replies: 19
Views: 4560

Re: Is there a decent photoshop replacement?

Great thread! Me, I'm a huge believer in open source software. Open Office is what got me started on it. Here are a few others I love, and use often: Picasa 3. Agreed, a fine basic photo editing program, I use it a lot. The Export function makes resizing photos to specific pixel size too easy. GIMP....
by KurtM
Sat Nov 28, 2015 1:43 am
Forum: My microscope
Topic: Spencer Buffalo Stereoscopic Microscope No. 25L
Replies: 12
Views: 3789

Re: Spencer Buffalo Stereoscopic Microscope No. 25L

Hey Rod, great seeing you around once again. When are you going to start posting some of your micro-photography? I swear you were taking some of the prettiest pictures I was seeing anywhere! 8-)
by KurtM
Fri Nov 27, 2015 12:53 am
Forum: Collecting microscopes and slides
Topic: AO Spencer 15 with Pol or is it an Interference?
Replies: 21
Views: 7385

Re: AO Spencer 15 with Pol

Charles, I was eyeballing that one myself, but passed on it in part because I was unsure what it even was. I thought probably a POL scope, but had never seen one with bino head, and thought it odd a POL scope would be applicable to cancer research? Glad to see you got it, and still want to tour your...
by KurtM
Fri Nov 27, 2015 12:19 am
Forum: My microscope
Topic: Spencer Buffalo Stereoscopic Microscope No. 25L
Replies: 12
Views: 3789

Re: Spencer Buffalo Stereoscopic Microscope No. 25L

gekko wrote:(but you are embarking on a slippery slope :) )
Man, I wish you woulda warned be about that a dozen or two microscopes ago. Help, I've fallen and I can't get back up! :lol:
apochronaut wrote:Great workhorse microscopes of the past...
Phil, thanks, as always, for the information. :geek:
by KurtM
Thu Nov 26, 2015 1:22 am
Forum: My microscope
Topic: Spencer Buffalo Stereoscopic Microscope No. 25L
Replies: 12
Views: 3789

Spencer Buffalo Stereoscopic Microscope No. 25L

Like some other people we know around here <koff>, I just can't seem to stop patrolling eBay and pouncing on bargains when I discover them. I'm trying to show some restraint to prevent the necessity of having to buy a larger house, but couldn't help myself and fell for this baby recently. These old ...
by KurtM
Sat Nov 21, 2015 12:09 am
Forum: Pictures and Videos
Topic: Amoeba and Algae
Replies: 16
Views: 2999

Re: Amoeba and Algae

gekko wrote:Kurt, many thanks for your comment. I don't know if this answers your question...
Yep, perfectly, thanks! 8-)
by KurtM
Fri Nov 20, 2015 12:56 am
Forum: Pictures and Videos
Topic: Amoeba and Algae
Replies: 16
Views: 2999

Re: Amoeba and Algae

Yes, very nice photos! Have you discussed how you manage it somewhere? :geek:
by KurtM
Fri Nov 20, 2015 12:49 am
Forum: Pictures and Videos
Topic: Galveston TX Beach Diatom
Replies: 11
Views: 1114

Re: Galveston TX Beach Diatom

...this diatom was pretty full and expanded, I am guessing the striae come out much better when it has been flattened or dried out? Please forgive me if I misunderstand what is being said here, but diatom frustules are basically glass, and neither contract, expand, or flatten out (unless crushed/br...
by KurtM
Wed Nov 18, 2015 3:36 pm
Forum: Pictures and Videos
Topic: Galveston TX Beach Diatom
Replies: 11
Views: 1114

Re: Galveston TX Beach Diatom

Hey Chris, I'd like to hear more about where & how you collected your specimen samples?

Fan, are you still into kayaking? I'm a sea kayak paddle instructor specializing in the Eskimo roll (great way to keep cool in Texas summer).
by KurtM
Sun Sep 27, 2015 2:50 pm
Forum: Microscopes and optics
Topic: What Are These Spencer Eyepieces For?
Replies: 11
Views: 3290

Re: What Are These Spencer Eyepieces For?

Gekko, no worries, I was mostly joking around, I know I have Professor Google right here if I need answers -- but at the same time THANK YOU for your considered reply! I'm aware that petrologist microscopy is highly specialized and not many people know much about it. Having started this conversation...
by KurtM
Sat Sep 26, 2015 2:45 pm
Forum: Microscopes and optics
Topic: What Are These Spencer Eyepieces For?
Replies: 11
Views: 3290

Re: What Are These Spencer Eyepieces For?

Thanks all. Kinda makes me wish I knew what the heck that means. :roll: :lol:
by KurtM
Mon Sep 21, 2015 12:14 am
Forum: My microscope
Topic: Finally Acquired a Nikon SMZ-U
Replies: 24
Views: 8733

Re: Finally Acquired a Nikon SMZ-U

Thanks for the detailed reply, einman. I can relate to pretty much everything you said. I have a fairly ridiculous collection of microscopes myself, some of which are VERY nice (got incredibly lucky), but I'm always drooling over something even nicer. :roll:
by KurtM
Sun Sep 20, 2015 12:36 am
Forum: My microscope
Topic: Finally Acquired a Nikon SMZ-U
Replies: 24
Views: 8733

Re: Finally Acquired a Nikon SMZ-U

I am excited. I have wanted one for several years. My Nikon SMZ-2T is a beautiful scope but the SMZ-U is a step above in terms of resolution, contrast and FOV. I'm curious on a couple points here: First, seems to me that any optical difference between those two scopes would constitute some pretty f...
by KurtM
Tue Sep 15, 2015 11:50 pm
Forum: Introduce yourself
Topic: Hi, I am a new member
Replies: 12
Views: 3888

Re: Hi, I am a new member

Hello, daleo! I'm in Texas, and we can hardly speak English here either. No worries, and welcome!
by KurtM
Sun Sep 13, 2015 11:23 pm
Forum: My microscope
Topic: Kohler illumination
Replies: 14
Views: 4561

Re: Kohler illumination

apochronaut wrote:Does it have the capacity to accept filters?
Yes, arranged similar to the 370, only wider (full 1/4"), and with springs clips to hold the filter(s) securely.
by KurtM
Fri Sep 11, 2015 11:10 pm
Forum: My microscope
Topic: Kohler illumination
Replies: 14
Views: 4561

Re: Kohler illumination

I'm curious what the " more nicely made " means? Like I said, I have one of each so it's easy to compare them directly. The Spencer 370 is very nicely made, no doubt, but the Burton has a bit nicer fit and finish. Some of the parts are castings instead of sheet metal, everything is rounded instead ...
by KurtM
Wed Sep 09, 2015 2:18 pm
Forum: My microscope
Topic: Kohler illumination
Replies: 14
Views: 4561

Re: Kohler illumination

I agree with Phil, the #370 is more versatile than the #735 by virtue of its elevation capability. I use mine for illuminating other things around the lab quite a lot, including stereomicroscope subjects and micro aquariums for macro photography. I have a Spencer #370, but also this "clone": http://...
by KurtM
Wed Sep 09, 2015 12:00 am
Forum: My microscope
Topic: Kohler illumination
Replies: 14
Views: 4561

Re: Kohler illumination

Yes.
by KurtM
Tue Sep 08, 2015 9:14 pm
Forum: Microscopes and optics
Topic: What Are These Spencer Eyepieces For?
Replies: 11
Views: 3290

What Are These Spencer Eyepieces For?

Seller says he thinks they're for aligning an old Spencer phase contrast scope (Model 15 was the first Spencer offered with phase, I believe). But if that's so, why would they come in a pair?
by KurtM
Tue Sep 08, 2015 12:57 am
Forum: My microscope
Topic: Kohler illumination
Replies: 14
Views: 4561

Re: Kohler illumination

Pretty well put, 75RR. Bottom line is, both do the same thing, but the O-I does it easier. It is limited to orthogonal placement of the scope, however, while the #735 is more flexible but requires more knowledge/futzing to set up. If you're asking about other options, then might say so, although I'm...
by KurtM
Tue Sep 08, 2015 12:48 am
Forum: My microscope
Topic: Resolution
Replies: 23
Views: 5322

Re: Resolution

For this exciting episode of True Confessions: I still don't know exactly what Numerical Aperture (aka N.A. aka NA) is, or what it should mean to me. I'm plenty familiar with the term, have had it explained many times, and have read about it in many different places, but still my fuzzy old brain ref...
by KurtM
Sun Sep 06, 2015 11:32 pm
Forum: My microscope
Topic: AO spencer
Replies: 51
Views: 11139

Re: AO spencer

Phil, thanks for the comments -- I will always gladly bow to those who know more than me, and enjoy learning. You said: "There is light loss and usually a lowered contrast. Those together can give the impression of a change in crispness." That's what I meant, even if I don't quite know the whys and ...
by KurtM
Sun Sep 06, 2015 12:14 am
Forum: Introduce yourself
Topic: Hello from Bloomington, IN, USA - home brewer -
Replies: 13
Views: 3812

Re: Hello from Bloomington, IN, USA - home brewer -

...it is likely of little overall benefit since it doesn't really change what you are doing. I'm doing it for fun, get rough yeast counts, and maybe ID whether yeast or bacteria, etc. Well there ya go! I'm a pretty decent chef (no really, even have some training), and used my scope to have a closer...
by KurtM
Sat Sep 05, 2015 11:56 pm
Forum: My microscope
Topic: AO spencer
Replies: 51
Views: 11139

Re: binocular versus monocular and lighting

Regarding kohler lighting; I wonder if an AO-735 or AO orth-illuminator would be better. Being a true novice it strikes me that, since the 735 is adjustable and aims at the mirror, it might be more useful when tilting the head. It appears the ortho illuminator requires the head and light to be para...
by KurtM
Sat Sep 05, 2015 3:01 pm
Forum: Introduce yourself
Topic: Hello from Bloomington, IN, USA - home brewer -
Replies: 13
Views: 3812

Re: Hello from Bloomington, IN, USA - home brewer -

Yeah, I saw what ya did there... :lol: I understand, and have great respect for "homebrew" strategies that get one up and running right this minute. Been there, done that. Although I've been using microscopes on and off since I was a kid (soon to turn 56 now), I never had any training, or really lea...
by KurtM
Sat Sep 05, 2015 1:45 am
Forum: Introduce yourself
Topic: Hello from Bloomington, IN, USA - home brewer -
Replies: 13
Views: 3812

Re: Hello from Bloomington, IN, USA - home brewer -

On the other hand, a small bottle of Cargill Type A immersion oil cost $3.85, plus S&H (which probably makes it the better part of a 15 dollar bill), and looks pretty cool sitting there on the shelf, almost as if you know what you're doing, lol. http://www.cargille.com/immeroil.shtml I had a friend ...