Very nice, one of my favourite rotifers, looks quite excentric ;.)
I tried to film them, but they are real fast...
Greetings
Jens
Search found 151 matches
- Sat Mar 25, 2017 1:42 pm
- Forum: Photography Through the Microscope
- Topic: Squatinella
- Replies: 6
- Views: 1385
- Sat Mar 25, 2017 1:31 pm
- Forum: Photography Through the Microscope
- Topic: Peacock feathers (photos added)
- Replies: 23
- Views: 2952
Hi, wow, more great photos! Cold is no big problem here, there are several birds the next 20 km around. My chickens would indeed be surprised... Best wishes Jens Thanks Jens, Lou and zzffnn. Jens, I'd have some too if they tolerated the cold better. I'm not sure how well they'd get along with our ch...
- Wed Mar 22, 2017 6:12 pm
- Forum: Photography Through the Microscope
- Topic: Peacock feathers (photos added)
- Replies: 23
- Views: 2952
- Wed Mar 22, 2017 9:55 am
- Forum: Photography Through the Microscope
- Topic: Diatoms in high nA DF.
- Replies: 5
- Views: 1383
- Wed Mar 22, 2017 3:48 am
- Forum: Photography Through the Microscope
- Topic: Navicula
- Replies: 30
- Views: 5593
- Fri Mar 17, 2017 8:33 am
- Forum: Photography Through the Microscope
- Topic: Mitraria and Aulophora larvae of Polychaete
- Replies: 7
- Views: 2101
- Fri Mar 17, 2017 7:24 am
- Forum: Photography Through the Microscope
- Topic: Diatoms in high nA DF.
- Replies: 5
- Views: 1383
Hi, Thanks a lot. Right, flatness was a problem. The designer Henry Siedentopf of Zeiss wrote about a maximum nA of 1.5 (Lit.: Kolloid-Zeitschrift; December 1925, Volume 37, Issue 6, pp 327–335; Ueber Neuerungen zur Dunkelfeldbeleuchtung; Henry Siedentopf). The glas of the slide wouldn't give more a...
- Fri Mar 17, 2017 3:54 am
- Forum: Photography Through the Microscope
- Topic: Diatoms in high nA DF.
- Replies: 5
- Views: 1383
Diatoms in high nA DF.
Hi, I've been playing around with the Leuchtbild condenser... This time the goal was to get darkfield with a 63/1.4 oil immersion lens without stopping this lens down. Placing a 14 mm stop below the condenser was the key to do so... The diatoms were embedded in Naphrax, found at the Hagenburger Kana...
- Fri Mar 17, 2017 3:32 am
- Forum: Photography Through the Microscope
- Topic: Epiphanes rotifer
- Replies: 6
- Views: 1089
- Tue Feb 28, 2017 5:58 pm
- Forum: Photography Through the Microscope
- Topic: Some photos with the Olympus 20x water dipping lens
- Replies: 18
- Views: 3409
- Tue Feb 07, 2017 11:15 am
- Forum: Photography Through the Microscope
- Topic: Amphipleura pellucida, part 3: a living diatom in high nA DF
- Replies: 12
- Views: 1842
Hi Fan, I know what You mean, some kind of "transition illumination" between DF and BF, I get it when using the Ultrakondensor (nA 1.2 - 1.4) or the Achr.-Apl. 1.4 multi condenser in DF position (nA 1.1 - 1.4). It looks different (grayish indeed), what we have here works only when the diatom is very...
- Tue Feb 07, 2017 10:36 am
- Forum: Photography Through the Microscope
- Topic: Amphipleura pellucida, part 3: a living diatom in high nA DF
- Replies: 12
- Views: 1842
Hi René, no playing around with condenser position, just maximum up. The diatom was in water, so all the light should normally be removed by total reflexion on top of the glas slide (a common 1mm one). You think of spherical aberrations producing some light below nA 1.33, may be... Yours Jens Hi Jen...
- Tue Feb 07, 2017 8:23 am
- Forum: Photography Through the Microscope
- Topic: Amphipleura pellucida, part 3: a living diatom in high nA DF
- Replies: 12
- Views: 1842
- Tue Feb 07, 2017 8:14 am
- Forum: Photography Through the Microscope
- Topic: Amphipleura pellucida, part 3: a living diatom in high nA DF
- Replies: 12
- Views: 1842
Hallo Michael, thanks a lot, indeed it looks like something out in space, I was very surprised when I saw this Amphipleura through my microscope. :-) I love Hubble images, too... Best wishes Jens Hi Jens, when I first saw your post (on the German forum), I thought, probably someone mistakenly posted...
- Mon Feb 06, 2017 10:42 am
- Forum: Photography Through the Microscope
- Topic: Amphipleura pellucida, part 3: a living diatom in high nA DF
- Replies: 12
- Views: 1842