Search found 214 matches

by RudiV
Sat Apr 15, 2017 6:30 pm
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Re: Fluorescent capability?

Ok, deal made, soon there will be a new scope to play with, and new things to learn!

Image

Now to find a good source of spare mercury lamps!

Rudi
by RudiV
Sat Apr 15, 2017 2:05 pm
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Re: Fluorescent capability?

Hi Everyone. I have an opportunity to get a fluorescent illumination capable microscope in a good condition at a reasonable price. I am considering adding it to my collection because it is different but also to experiment with a new lighting technique. I have seen a few images posted on this forum ...
by RudiV
Sat Apr 15, 2017 2:04 pm
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Re: Fluorescent capability?

Rudi, This threads shows you how well 1-2 $40 UV LED torches work at low magnification. Relatively long exposure (~30 second or more) is needed though. Edit: here is the page: http://www.photomacrography.net/forum/viewtopic.php?t=33123&start=0 That thread also contains a link Pau's LED epi illumina...
by RudiV
Sat Apr 15, 2017 5:34 am
Forum: Pictures and Videos
Topic: Zygentoma 2x
Replies: 3
Views: 2342

Re: Zygentoma 2x

Zygentoma order insect. Diffused light with ping-pong ball half, 2x objective, two focus stacks ~25 images each stitched. https://c1.staticflickr.com/3/2921/33200807774_1a279b8ac4_b.jpg Great image with lots of detail! Thanks for sharing this, I really need to try your diffused light setup, your re...
by RudiV
Sat Apr 15, 2017 5:26 am
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Re: Fluorescent capability?

chlorophyll, some crustaceans and some minerals can produce fluorescence. I am not pursuing it because application is limited to me and cost is quite high, if you want the short exposure/low noise image at high magnification. At low magnification with long exposure, a powerful UV LED will work for ...
by RudiV
Sat Apr 15, 2017 5:07 am
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Re: Fluorescent capability?

Hi Rudi, At one time I was interested it obtaining a fluorescent microscope.. After doing some extra research, I decided against it.. It seems the high pressure bulb for lighting is a very expensive(to me)replacement item.. It has a life span rated in hours, not days... Along with the cost of the s...
by RudiV
Fri Apr 14, 2017 6:06 pm
Forum: Illumination Techniques
Topic: Fluorescent capability?
Replies: 14
Views: 7912

Fluorescent capability?

Hi Everyone. I have an opportunity to get a fluorescent illumination capable microscope in a good condition at a reasonable price. I am considering adding it to my collection because it is different but also to experiment with a new lighting technique. I have seen a few images posted on this forum b...
by RudiV
Fri Apr 14, 2017 5:44 pm
Forum: Pictures and Videos
Topic: Euglenid
Replies: 8
Views: 4043

Re: Euglenid

A fascinating and beautiful image Johann, thanks for the inspiration!

Rudi
by RudiV
Fri Apr 14, 2017 5:42 pm
Forum: Pictures and Videos
Topic: Gastrotricha
Replies: 5
Views: 2874

Re: Gastrotricha

Hi Johann,

An interesting image! I am sure it was not easy to capture.

Thanks for sharing,
Rudi
by RudiV
Fri Apr 14, 2017 5:41 pm
Forum: Pictures and Videos
Topic: Pollen grain on orchid petal 100x
Replies: 3
Views: 2542

Re: Pollen grain on orchid petal 100x

A really beautiful and interesting image, thanks for sharing!

Rudi
by RudiV
Fri Apr 14, 2017 5:40 pm
Forum: Pictures and Videos
Topic: Vorticella
Replies: 5
Views: 2502

Re: Vorticella

Interesting image, thanks for sharing!

Rudi
by RudiV
Fri Apr 14, 2017 5:38 pm
Forum: Pictures and Videos
Topic: Pine needle cross section
Replies: 8
Views: 4185

Re: Pine needle cross section

Looks nice. Is this "double blading technique" two blades with a piece double-sided sticky tape between them? Any other tips or tricks? It is a slight variation, I use half a blade between the 2 cutting blades, it gives me thinner sections than the tape option. I have no real tricks other than to c...
by RudiV
Fri Apr 14, 2017 5:34 pm
Forum: Pictures and Videos
Topic: Pine needle cross section
Replies: 8
Views: 4185

Re: Pine needle cross section

Thanks everyone!
by RudiV
Fri Apr 14, 2017 5:32 pm
Forum: Pictures and Videos
Topic: Hungry Hydra
Replies: 7
Views: 3837

Re: Hungry Hydra

Great image as always Johann!

I did not realize a Hydra would be ambitious enough to eat a mosquito larva!

Thanks for sharing,
Rudi
by RudiV
Fri Apr 14, 2017 5:31 pm
Forum: Pictures and Videos
Topic: Onion Cells
Replies: 4
Views: 2669

Re: Onion Cells

Fantastic detail Johann!

You are really getting great results with DIC.

Thanks for sharing,
Rudi
by RudiV
Fri Apr 14, 2017 5:29 pm
Forum: My microscope
Topic: My first Microscopes
Replies: 26
Views: 14226

Re: Teardown of BH-2 Focus Mechanism

carlh6902 wrote:For anyone who is interested in what exactly is inside the BH-2 coaxial focus mechanism:

https://drive.google.com/open?id=0B7ckZ ... 002eWJhMGs

Carl
Wow, a fantastic document with lots of detail very professionally compiled Carl.

Thanks for sharing it with us!

Rudi
by RudiV
Tue Apr 11, 2017 3:50 am
Forum: Pictures and Videos
Topic: Pine needle cross section
Replies: 8
Views: 4185

Re: Pine needle cross section

Very nice colors! Like it very much. Hard to believe it is hand cut. Thanks! The secret is to make MANY cuts and select the best. Using the double blade technique I find it best not to cut at the end of the specimen but at least 2mm further in, gives better stability and more consistent results. Th...
by RudiV
Tue Apr 11, 2017 3:03 am
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

Hi RudiV, I have been keeping bees for 17 years and if I can be of any help please get in touch. I have obtained all the British Beekeeping written modules and the microscopy module so I have some idea of what is expected re; drones. I also have a big collection of pollen grains. Good luck to you f...
by RudiV
Tue Apr 11, 2017 3:02 am
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

apochronaut wrote:Why is it called the defense industry, instead of the offense industry?
I suppose it depends on how you apply the product? My "devices" were used in both roles I suppose....
by RudiV
Tue Apr 11, 2017 3:01 am
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

KurtM wrote:Well ... dang. I think it's a cinch that you get the Mad Scientist of the Day award! :ugeek:
:mrgreen: :mrgreen:
by RudiV
Mon Apr 10, 2017 7:00 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

Thanks for sharing!.... What a fascinating subject... How were you able to capture bees with it?.. BillT We tow a very long net below/behind it with pheromones (slowly released) inside, towards the closed end, that attracts male bees, they then get stuck in the net and are collect after landing. Th...
by RudiV
Mon Apr 10, 2017 6:10 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

Hi Rudi, Please keep us up to date on your studies on this fascinating subject!.. Would love to see a few pics of your drone.. BillT I BillT. Will do! I have designed and built more than 75 drones in recent years, mostly for specific jobs ranging from photography, search and rescue to nature conser...
by RudiV
Mon Apr 10, 2017 5:08 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

Beautiful images! 8-) You may already be aware of this, but here goes just in case: If you take a bit of natural unprocessed honey, add water, blend well, place a drop of the dilution on a slide, add a slip, and check it out under the microscope, you should be able to see pollen from the flowers th...
by RudiV
Mon Apr 10, 2017 4:36 pm
Forum: Pictures and Videos
Topic: Pine needle cross section
Replies: 8
Views: 4185

Pine needle cross section

I am still playing with sections stained using food dyes. This hand-cut CS of a pine needle was stained with red and blue food colorant. To try and get some color differences I have raised the PH of the blue and lowered it on the red, staining first with the blue and then the red. The sections are n...
by RudiV
Mon Apr 10, 2017 4:26 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

billbillt wrote:It just gets better and better!.. Wonderful, clear and sharp..

BillT
Thanks BillT!

Rudi
by RudiV
Mon Apr 10, 2017 4:25 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Re: Pollen - Plectranthus zuluensis

Johann wrote:Great shots - which scope in your growing collection did you use for these images?
Thanks! This was one of the BH-2's with DPlan Apo objectives.
by RudiV
Sun Apr 09, 2017 5:18 pm
Forum: Pictures and Videos
Topic: Artemia Salina
Replies: 9
Views: 4017

Re: Artemia Salina

Stunning images as always!

Thanks for sharing,
Rudi
by RudiV
Sun Apr 09, 2017 5:16 pm
Forum: Beginner's corner
Topic: Yes, MY microscope
Replies: 34
Views: 16173

Re: Yes, MY microscope

Hi Rudi, "I have now acquired 5 Olympus scopes (delivered with 3 more on the way) They include a CX-41, CH-30, 2 x BH-2's and a CH-2. The prices varied from about $200 to $1100 (not including shipping). Of the 5 so far delivered not a SINGLE one arrived in perfect working condition, all had some ki...
by RudiV
Sun Apr 09, 2017 5:10 pm
Forum: Identification help
Topic: Found in tree moss
Replies: 9
Views: 4786

Re: Found in tree moss

Hi, Rudi..you have the shed 'shell' of a mite in this image. I seem to recall that like water fleas..these mites go through a series of molts in their life time. Great communities in mosses..often the usual suspects are: nematodes, rotifers, mites, and the wonderful water bears ( also termed: moss ...
by RudiV
Sun Apr 09, 2017 4:51 pm
Forum: Pictures and Videos
Topic: Pollen - Plectranthus zuluensis
Replies: 20
Views: 7543

Pollen - Plectranthus zuluensis

My pollen collection is growing, I managed to add a few today, there is Plectranthus zuluensis, a tiny blue flower that I can find in the garden 12 months of the year. Plectranthus zuluensis pollen, 20x objective, 28 image stack. https://c1.staticflickr.com/3/2927/33091732024_f8905a316d_z.jpg And wi...