Search found 55 matches

by glennbech
Sat Apr 23, 2016 2:06 pm
Forum: Pictures and Videos
Topic: First try at depth stacking. Clover stamen.
Replies: 6
Views: 580

Re: First try at depth stacking. Clover stamen.

Hi again Glen, I made a quick and easy water-mount that you may like a quick look at - It may be a good way to start for you to try.. Here's the post http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=6&t=2924 Hope it may help get you going old chap. :) Hi.. Just saw your post. Nice! I d...
by glennbech
Fri Apr 22, 2016 5:14 am
Forum: Pictures and Videos
Topic: First try at depth stacking. Clover stamen.
Replies: 6
Views: 580

Re: First try at depth stacking. Clover stamen.

Yes. I totally get your reasoning. I've skipped a couple of basic steps here :-) coming from astro photography I am a bit eager on image capture and processing - just a part of the e whole :-)
by glennbech
Thu Apr 21, 2016 7:06 pm
Forum: Pictures and Videos
Topic: First try at depth stacking. Clover stamen.
Replies: 6
Views: 580

First try at depth stacking. Clover stamen.

Hi, This is my first try at depth stacking. It's the stamen of a clover species that flowers early here in Norway. I used my DIY dark field filter and took photos in 4 layers. I did a 11 image stack for each layer, processed in Photomatix, before I combined them in Helicon Focus. What I learned this...
by glennbech
Wed Apr 20, 2016 9:59 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

Well, I was wrong. My Row Rathenow 1960-ish EP projects a larger image on the sensor than the original 10x ones. Not sure if it is actually more data, just the same image as with the 10x, but enlarged...
by glennbech
Wed Apr 20, 2016 9:25 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

Good progress. As one who did a good deal of afocal imaging with a Nexus 6 (not 6p) phone, a couple of observations for you to consider. First, it looks to me like your phone may be too close or too far from the eyepiece. You are using a very small part of the sensor and sacrificing a good deal of ...
by glennbech
Wed Apr 20, 2016 9:17 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

So, after taking 7 RAW shots with my Nexus 6P @ ISO 100 and auto shutter, I took 11 new "empty" shots with no slide, and at the same ISO. Both the "flat frame" and light frame were averaged in photomatix. Does this technique have a name? It is very common with DSLR astro photography where you get u...
by glennbech
Tue Apr 19, 2016 11:26 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

I finally have an adapter for my Nexus 6P now, making things a lot easier. I purchased a Gosky Universal Cell Phone Adapter Mount. (http://www.amazon.com/Gosky-Universal-Phone-Adapter-Mount/dp/B013D2ULO6). The only problem with it is that the Nexus has the power button and volume buttons right where...
by glennbech
Sat Apr 16, 2016 8:30 pm
Forum: Introduce yourself
Topic: Greetings from Norway!
Replies: 10
Views: 2608

Re: Greetings from Norway!

Hi Glenn, I have never heard of that brand, but it looks pretty straight forward in design... It does look to be high quality German build... It is certainly worth more than you paid.. The operation would be very standard and common with other stands.. You can always take photos "afocal".. Through ...
by glennbech
Sat Apr 16, 2016 7:09 pm
Forum: Microscopes and optics
Topic: Eye pieces for projection
Replies: 2
Views: 1066

Re: Eye pieces for projection

75RR wrote:Ideally in 160 systems one should use eyepieces and objectives from the same manufacture as the corrections are handled jointly by both the objective and the eyepieces.

See link:
http://www.krebsmicro.com/pdf/trinoc_a3.pdf
That was very useful reading. Thanks a lot!
by glennbech
Sat Apr 16, 2016 5:07 pm
Forum: Introduce yourself
Topic: Greetings from Norway!
Replies: 10
Views: 2608

Re: Greetings from Norway!

billbillt wrote:Velkommen Glenn ! .. Det er en fantastisk mikroskop du har! ..

BillT
Tusen takk! Jeg vet absolutt ikke noe om det, så om du har noe info, eller kan kaste litt lys over typen mikroskop send meg gjerne her eller på PM. :)
by glennbech
Sat Apr 16, 2016 11:23 am
Forum: Microscopes and optics
Topic: Eye pieces for projection
Replies: 2
Views: 1066

Eye pieces for projection

I have three, all rather odd maybe, options for EP projection photography. I own only older microscope and have the following to choose from; - Reichert Austria 8x vintage, pre-1940 - 10x EP that is included with me microscope (1940ish) - Unknown origin and magnification ROW Rathenows (later Zeiss) ...
by glennbech
Fri Apr 15, 2016 9:40 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

Very interesting subject. You have some spots of tantalizing sharpness in there which would suggest a focus stack might be a good way to attack this subject. There is always a struggle with depth of focus in photomicrography which is not a big consideration in Astrophotography. You can manage it to...
by glennbech
Fri Apr 15, 2016 9:35 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Re: Pollen of coltsfoot (Tussilago farfara)

Another shot, while still on the flower https://lh3.googleusercontent.com/XVJREG6_J5wfd0m_9zR_QkXZnNG_P2iEO9mg5KG2EPfQibYKtPDvBrbBe7eht_M1OnFVGqr8e8pFz95JNrdh8gjKU4fXNMPH28Wvs1TFkbYWEpaArbcdZFmPlll7V8vEdvjZT3lC2Xror5EuBxVA9czJJahXpJKU6Fp7KIaIDCw_Pe0nlrpzqwXFQA8rRSBWYVuob6nIGnBlR02i2OS0rZHVOHMmPOsjBm...
by glennbech
Fri Apr 15, 2016 8:11 pm
Forum: Pictures and Videos
Topic: An Amoeba video showing Paramecia behaving badly
Replies: 21
Views: 1780

Re: An Amoeba video showing Paramecia behaving badly

billporter1456 wrote:Thanks, Rod. Yes, I tend to focus on the BEHAVIOR of the little critters rather than their structure. And BTW, that puts less pressure on having high-end equipment because image resolution usually isn't critical.
Behaviour also a lot more entertaining! Thanks for sharing. Awsome clip.
by glennbech
Fri Apr 15, 2016 8:05 pm
Forum: Pictures and Videos
Topic: Pollen of coltsfoot (Tussilago farfara)
Replies: 15
Views: 899

Pollen of coltsfoot (Tussilago farfara)

Hi, This is my second attempt at darkfield. I extracted some coltsfoot pollen by cutting a flower off and leaving it on a glass, head down, for about half an hour. Coltsfoot has evolved into an "early bloomer", to avoid competition for pollen-bearing insects in early spring. I did a hand-held "burst...
by glennbech
Mon Apr 11, 2016 7:47 am
Forum: Beginner's corner
Topic: First real microscope
Replies: 12
Views: 2390

Re: First real microscope

This a very fine looking microscope and I am happy it was just a lubricant issue. I have several examples of Wetzlar-O objectives, which seem patterned after Leitz objectives of the same era as well as being physicaly similar to objectives labelled Seibert. It seems Seibert, a bit of a genius optic...
by glennbech
Mon Apr 11, 2016 6:22 am
Forum: Pictures and Videos
Topic: Paramecia in polarized light
Replies: 12
Views: 1818

Re: Paramecia in polarized light

That is very cool indeed. Can you tell me a little more about what kind of filter you used and where you placed them? I want to sacrifice a couple of 3D glasses for an experiment like this. I can put one piece in my pre-condenser filter holder, and the other one in one of the Eyepieces maybe?
by glennbech
Mon Apr 11, 2016 6:14 am
Forum: Pictures and Videos
Topic: Dark Field #1
Replies: 5
Views: 1131

Dark Field #1

I did a very simple DIY dark field experiment today. I just cut a circular, coin size, shape out of black cardboard. I put it on top of my white diffuser filter that sits between lamp and condenser. I am not sure if this qualifies as a "true" dark field effect, but I sure got the contrast increase. ...
by glennbech
Sun Apr 10, 2016 7:53 pm
Forum: Beginner's corner
Topic: First real microscope
Replies: 12
Views: 2390

Re: First real microscope

Just out of curiosity: are the eyepiece tubes of the parallel type? I am used to converging eyepiece tubes on my Spencers and have never had a problem merging the images. But I remember I had a bit of difficulty accommodating when first trying a scope with parallel tubes. It seems as though one has...
by glennbech
Sat Apr 09, 2016 10:20 pm
Forum: Microscopes and optics
Topic: Filter between lamp and condenser - and dark field question
Replies: 2
Views: 949

Filter between lamp and condenser - and dark field question

Hi, I am getting to know my second hand and recently purchased microscope better and better. It has a mechanism for placing a filter between the lamp and iris/diaphragm. (Image available here: https://goo.gl/photos/ySQYtJRqS5r4RZ4f8). Right now, I am using a diffuser filter, that was included. Does ...
by glennbech
Sat Apr 09, 2016 8:00 am
Forum: Introduce yourself
Topic: Greetings from Norway!
Replies: 10
Views: 2608

Greetings from Norway!

Hi my name is Glenn, and I just arrived .-) I just bought my first "advanced" microscope off a local classifieds site for 70 USD. Advanced is of course very relative, but it's my first binocular, movable condenser, adjustable iris/diaphragm, replaceable filter, oil immersion lens, fine adjustment of...
by glennbech
Sat Apr 09, 2016 7:31 am
Forum: Beginner's corner
Topic: First real microscope
Replies: 12
Views: 2390

Re: First real microscope

Charles wrote:Nice job on the break down and clean up. It should serve you well.
Thanks! It is strange how you immediately get more attached to objects when you have cared for- or fixed them yourself :-)
by glennbech
Fri Apr 08, 2016 8:02 pm
Forum: Collecting microscopes and slides
Topic: My Carl Zeiss Jena Stativ VA from 1910 (ish)
Replies: 2
Views: 1926

My Carl Zeiss Jena Stativ VA from 1910 (ish)

Here is my super cool Vintage Carl Zeiss Jena "Stativ VA" https://goo.gl/photos/VWxPJqXYDNmpzW5n6 It was designed for low power objectives, and allows then to pass through the stage. The condenser is removable and there is a ring that can be removed to make the opening in the stage larger. I tried t...
by glennbech
Fri Apr 08, 2016 7:42 pm
Forum: Beginner's corner
Topic: First real microscope
Replies: 12
Views: 2390

Re: First real microscope

Well, Here is my breakfast table this morning;To get to the focuser knob, I had to do a 100% disassembly. It was probably rust, or old lubricant that was the culprit. It dissolved quickly with a generous spray of WD-40. I also had to spray the condenser height knob. https://lh3.googleusercontent.com...
by glennbech
Thu Apr 07, 2016 10:39 pm
Forum: Beginner's corner
Topic: First real microscope
Replies: 12
Views: 2390

First real microscope

Hi, I just bought a second-hand microscope and have run into some problems. The stage will not move when I use the large knobs. I have never used a stereo microscope before, but I assume the large knobs are supposed to move the stage up and down. I can't see a stage lock, if such a thing exists. Pic...