Search found 124 matches

by rene
Wed Jun 21, 2006 9:05 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Videomicroscopy using still cameras in movie-mode?
Replies: 3
Views: 9022

I've found the brightness uneven between images, 'flickering' and was told that this was because of the 50Hz cycling of the lamp. Further then that, ok.

Rene.
by rene
Wed May 17, 2006 8:08 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: water glass as a slide mountant
Replies: 4
Views: 10671

interesting! Never heard of it as a mountant. Which book is this? I doubt silica gel is exactly the same, even though it is made from it. Nevertheless, there is a well proven alternative in the form of Kairo syrup, a thick fructose syrup. That works very well, and has been in use for a very long tim...
by rene
Sat May 13, 2006 11:17 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Camera Adaptor
Replies: 6
Views: 10645

No problem with that, needs somemore light though, compared to most trino's (with 80/20 split). With some care you could get the 2 eyepieces parfocal for phototaking, almost a necessity for proper work.

Good luck, Rene
by rene
Fri May 12, 2006 5:06 am
Forum: Photography Through the Microscope Gallery
Topic: 3D and stacking in helicon focus
Replies: 4
Views: 3792

Thanks Rik, very helpful! I'll have to chew a bit more on your explanation to know exactly what's going on, and how to proceed from here.

BTW, it's Dictyosphaerium pulchellum. I wasn't sure at first, but all cells are finely stalked (difficult to see) and contained in mucus.

Rene.
by rene
Thu May 11, 2006 2:51 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus HI M100 question
Replies: 3
Views: 9338

Funny conversation :wink: Some oils can be removed with alcohol, but I really would recommend pure white cleaning petrol. Most scope manufacturers would recommend against alcohol! Use little on a soft tissue and wipe the oil off. Saliva works very well also. It is not really necessary to keep the le...
by rene
Thu May 11, 2006 2:43 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus EP IDs wanted
Replies: 4
Views: 9965

P might be plan, correction for field curvature. Don't know whether Oly used the german K for compensatory, but that might be right. G eyepieces are for the stereomicroscopes.

Rene.
by rene
Thu May 11, 2006 2:32 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Do you know what this is
Replies: 6
Views: 12011

wow. when it is what i think it is, it went for ridiculously little money.

The huge working distance makes me think it is (partly) a mirror objective that projects the first image in the air, which is then being looked at with the rest of the objective.

Rene.
by rene
Thu May 11, 2006 2:09 pm
Forum: Photography Through the Microscope Gallery
Topic: 3D and stacking in helicon focus
Replies: 4
Views: 3792

3D and stacking in helicon focus

Guys, please have a look at the following. Not really about the thingin the picture, just the 3D effect here. I've stacked 4 images for each, did do a stack on 'auto' (offset, rotation etc) and non-auto, ie, stacking without any deviation. I really thought that would be necessary to get the proper e...
by rene
Sun May 07, 2006 4:35 am
Forum: Photography Through the Microscope Gallery
Topic: Floscularia tube building
Replies: 7
Views: 3855

Nice! Amazing stuff.
René
by rene
Fri Apr 28, 2006 1:39 am
Forum: Photography Through the Microscope Gallery
Topic: stereotic diatomy
Replies: 3
Views: 2582

I suppose next you'll be stacking each view and giving us everything in focus? :D Thought of that, tried it before also but didn't work at the time. Sould do it again carefully with something dead, but I have the sneaky suspicion that there might be more to it... W hat causes the two views to have ...
by rene
Thu Apr 27, 2006 7:09 am
Forum: Photography Through the Microscope Gallery
Topic: stereotic diatomy
Replies: 3
Views: 2582

stereotic diatomy

http://www.photomacrography1.net/images/8098-99_stereopaar_Guinardia_kleiner.jpg Stereo the simple way: cover left part of condenser entrance, take pic, cover right part and take pic again. Works nicely! This a bit of an oversight picture, taken with 20/0.7 planapo. The big cylinders are Guinardia ...
by rene
Tue Apr 25, 2006 11:59 am
Forum: Photography Through the Microscope Gallery
Topic: plankton
Replies: 3
Views: 2459

Beauties, again. Thalassiosira nordenskioeldii. Your larva would stand out in a sf movie.

Rene.
by rene
Tue Apr 25, 2006 11:56 am
Forum: Photography Through the Microscope Gallery
Topic: Asplanchnopus
Replies: 2
Views: 2793

Nice! Seems we will see a lot more of your work soon with your new camera. Where exactly did you find it??


Rene.

ps. This place is slowly becoming a goldmine for information. I really thinkthe mentioning of finding place would make this site valuable in the future? What do you guys think?
by rene
Tue Apr 25, 2006 11:46 am
Forum: Photography Through the Microscope Gallery
Topic: More live marine diatoms
Replies: 2
Views: 2079

Beautiful as ever, Charlie. When I had access to a Leitz interference contrast, the 10x didn't have a prism, but with the condenser prism (40x) only produced good nomarski-effect. Don't really know why and how... Optics, huh... More of an art sometime. Do you know the id of the filament at the right...
by rene
Mon Apr 24, 2006 9:09 am
Forum: Photography Through the Microscope Gallery
Topic: 3d starfish
Replies: 6
Views: 2730

Nice clean shot Wim! Great subject for this. Large detail, even with one unsharp eye I can see it nicely cross-eyed, both combinations end up the same btw. Am seriously considering contact lens by now.

Rene.