Search found 1175 matches

by Charles Krebs
Tue May 23, 2006 8:48 pm
Forum: General Discussion Forum and Community Announcements
Topic: Objective Differences - need advice
Replies: 8
Views: 9363

Mike, Yes indeed, you could use "direct projection" as long as the trinocular tube is short enough that you can get the camera sensor plane down to the plane of the intermediate image (the image that the eyepieces "pick up"). Sometimes this can be done, in other cases the camera can't be mounted low...
by Charles Krebs
Tue May 23, 2006 11:21 am
Forum: General Discussion Forum and Community Announcements
Topic: Objective Differences - need advice
Replies: 8
Views: 9363

"... I am already overbudget..." :) "... expensive hobbies..." :) :wink: Yup! Photo tubes (I assume you are talking about the trinocular head as opposed to using one of the viewing eyepiece tubes) should have the diameter as the regular eyepieces. A 2.5X photo-eyepiece was the "power" that worked be...
by Charles Krebs
Tue May 23, 2006 7:31 am
Forum: General Discussion Forum and Community Announcements
Topic: Objective Differences - need advice
Replies: 8
Views: 9363

Mike, Infinity optical systems and finite systems have fundamental differences. You may get by with a finite objective, but there is a good chance the image quality will be compromised. In "infinity" systems some manufacturers (Zeiss, Leica) make additional optical correction in the tube lens. Nikon...
by Charles Krebs
Sun May 21, 2006 9:46 pm
Forum: Photography Through the Microscope Gallery
Topic: Water flea (dorsal view)
Replies: 0
Views: 3379

Water flea (dorsal view)

I put a few water fleas in the "aquarium" slide I had made up for the larger damselfly nymph. In this spacious slide, some would come to rest so that they could be observed "head-on". This is a view that is less common than I usually see on a slide, where the narrow confines of the cover-glass gener...
by Charles Krebs
Sun May 21, 2006 9:35 pm
Forum: Photography Through the Microscope Gallery
Topic: Damselfly nymph (dorsal & ventral views of head)
Replies: 1
Views: 3912

Damselfly nymph (dorsal & ventral views of head)

Photographed this damselfly nymph in a small "aquarium" slide I made, then set it loose back in the pond sample... ...sort of catch-and-release for insects. :wink: Since the Olympus is still out of service, I've been playing around with a Labophot stand trying to come up with a condenser set-up that...
by Charles Krebs
Fri May 19, 2006 10:43 pm
Forum: Photography Through the Microscope Gallery
Topic: Happy looking nymph
Replies: 1
Views: 3885

Happy looking nymph

Well it looks like it's smiling. Don't have a clue what it is. There were quite a few in a sample I took from my favorite pond. And those jaws were not just for show. There was a small water boatman in the water with him, and he finished it off quickly (lower shot) http://www.photomacrography1.net/i...
by Charles Krebs
Fri May 19, 2006 10:33 pm
Forum: Photography Through the Microscope Gallery
Topic: Paramecium bursaria conjugating
Replies: 3
Views: 4632

These are really beautiful Wim!
by Charles Krebs
Fri May 19, 2006 10:30 pm
Forum: Photography Through the Microscope Gallery
Topic: Arcella and Hyalotheca
Replies: 2
Views: 3332

Bernhard... very nice look to these! Are you using a type of oblique lighting?
by Charles Krebs
Fri May 19, 2006 10:27 pm
Forum: Photography Through the Microscope Gallery
Topic: Embedded Wasp...
Replies: 2
Views: 2170

Steve... Isn't it just great fun to look at the flawless details of these specimens, while you try to appreciate just how old they are, and wonder what the world they lived in might have looked like?!?
by Charles Krebs
Fri May 19, 2006 10:22 pm
Forum: Photography Through the Microscope Gallery
Topic: some very thinly sliced truffle
Replies: 3
Views: 3923

David... wow... quite an elaborate recipe! I generally go with a little olive oil and butter.

Seriously though, very nicely done. Beautiful details and patterns.
by Charles Krebs
Thu May 18, 2006 11:42 am
Forum: Macro and Close-up Photography Gallery
Topic: The itsy bitsy spider(S)
Replies: 5
Views: 4052

Tom... it is kind of tough when you have a 3 dimensional mass made up of tiny individuals. I looked for a "plane" that gave me a decent number in focus... no possibility to "stack" as they were in constant motion. Two flashes were used. One was mounted on the lens and came in at about "10:30" relati...
by Charles Krebs
Mon May 15, 2006 8:41 pm
Forum: Macro and Close-up Photography Gallery
Topic: The itsy bitsy spider(S)
Replies: 5
Views: 4052

The itsy bitsy spider(S)

Took a brief walk out back before tonights episode of "24", and found these recently hatched spiders. Tiny little critters and lots of them.

Image


Image
by Charles Krebs
Wed May 10, 2006 9:00 pm
Forum: Photography Through the Microscope Gallery
Topic: Insects beware
Replies: 8
Views: 26564

OK... nice compliment (thanks!) and a capitalized "PLEASE"... guess I'll have to spill the beans... :wink: The first picture below is pretty much it. I made a hemispheric dome (from 1/2 a small plastic Christmas ornament) and spray painted the inside lightly with a matte white paint. Then I cut a ho...
by Charles Krebs
Wed May 10, 2006 12:46 pm
Forum: Photography Through the Microscope Gallery
Topic: Insects beware
Replies: 8
Views: 26564

Insects beware

The tiny pond creatures get a respite while I get my main microscope light repaired. But I have fired up the fiber optic illuminator, and mounted the low power objectives to a Labophot stand. This means that the local insects better watch their backs! :shock: This (unidentified) fly image was actual...
by Charles Krebs
Tue May 09, 2006 9:28 am
Forum: Photography Through the Microscope Gallery
Topic: Floscularia tube building
Replies: 7
Views: 4361

Ron... I think you saw how you can find a slender blade of grass with 5 or 6 of these guys attached. If you place these under a cover slip with a good supply of water, sooner or later you get "lucky". Some will be "pressed" against the slide, some will be "pressed" against the cover slip. But once i...