Video of Nostoc sp. cyanobacteria

myriophyllum · Post by **myriophyllum** » Sat Aug 13, 2011 10:24 am

Hi,

I'd like to show a video of Nostoc sp. cyanobacteria in altered darkfield illumination.
By moving both the focal plane and the position of the condenser
I tried to get some nice impressions of the spherical colonies.

http://www.youtube.com/watch?v=vIh6xG3MfKU

Zeiss Standard 18; Planapo 25/0.65 and 40/0.95; Ultrakondensor

Your comments are welcome

Greetings

Jens

Cactusdave · Post by **Cactusdave** » Sat Aug 13, 2011 2:13 pm

Impressive and rather eerie. It has a sort of science fiction feel. I'm not familiar with the Zeiss X40 NA 0.95 objective, it sounds expensive.

Pau · Post by **Pau** » Sat Aug 13, 2011 3:03 pm

Excellent effects. And perfectly centered condenser! (not easy in my experience)

Simon W · Post by **Simon W** » Sat Aug 13, 2011 7:22 pm

Yes lovely, like an alien planet. Very clear

myriophyllum · Post by **myriophyllum** » Sun Aug 14, 2011 2:59 am

Hi Dave,

I watched a film "The Sphere" which remembered me of these Nostoc colonies! :-)

Greetings

Jens

Cactusdave wrote:Impressive and rather eerie. It has a sort of science fiction feel.quote]

Cactusdave · Post by **Cactusdave** » Sun Aug 14, 2011 8:08 am

I'm still curious about the X40 objective you used. Was it a Zeiss West lens or is it the X40 NA 0.95 apochromat, sold under Zeiss Jena and Lomo labels, discussed in this thread http://www.photomacrography.net/forum/v ... dd2302fd5a ?

myriophyllum · Post by **myriophyllum** » Sun Aug 14, 2011 8:41 am

Hi Dave,

it's the Planapo 40/0.95 Korr. for the Carl Zeiss (West) 160mm system.
Not the Carl Zeiss Jena...

Greetings

Jens

Cactusdave wrote:I'm still curious about the X40 objective you used. Was it a Zeiss West lens or is it the X40 NA 0.95 apochromat, sold under Zeiss Jena and Lomo labels, discussed in this thread http://www.photomacrography.net/forum/v ... dd2302fd5a ?

Cactusdave · Post by **Cactusdave** » Sun Aug 14, 2011 9:25 am

Thanks Jens. It looks like it's a really nice objective from your video. Any chance of a photo of it? I can't find one on the web. Is it the all bright chrome silver style?

myriophyllum · Post by **myriophyllum** » Sun Aug 14, 2011 1:21 pm

Hi,

yes, it is all bright chrome. I like it very much. :-)

Jens

Cactusdave wrote:Thanks Jens. It looks like it's a really nice objective from your video. Any chance of a photo of it? I can't find one on the web. Is it the silver style?

Cactusdave · Post by **Cactusdave** » Sun Aug 14, 2011 1:52 pm

Thanks Jens, and also for the additional information via PM.