Chris Curtis Web Site

Thursday 26 May 2011

Dance Photo

Filed under: Photography and Art — Chris Curtis @ 22:12

This is one image from a session I did to create a poster for a dance show. Exposure was 4/10 sec at f8 ISO 200.

Monday 9 May 2011

Hercules Cluster

Filed under: Photography and Art,Science — Chris Curtis @ 22:59

Hercules Cluster, originally uploaded by ThinkingCamera.

M13 again. This is a stack of 135 frames (from 10s to 30s in length) and much gentler processing in Maxim DL and PS.
I am pleased with this – there is much to criticise, but much to enjoy too. Stars are consistently visible down to mag 16.9 – very close to the theoretical predictions for my scope and camera. This is equivalent to a 17 inch (430mm) telescope used visually (though it would also have more resolving power too)

Sunday 8 May 2011

M3-lots of subs

Filed under: Photography and Art,Science — Chris Curtis @ 22:05

M3-lots of subs, originally uploaded by ThinkingCamera.

I have been experimenting with processing images I have already taken, combining large numbers taken on different nights. It is hard to get the processing just right, especially with sky backgrounds that are orange or mucky brown from light pollution, but the results are encouraging. This image clearly shows 17th magnitude stars and gives some sense of the scale and extent of the globular cluster.

Via Flickr:
The globular cluster M3 – approximately 100 subs from several nights – most subs 20 ro 30 seconds long. Processed in Maxim and PS.
Atik 320e camera and CPC800 Hyperstar Telescope

Twitter Weekly Updates for 2011-05-08

Filed under: General — Chris Curtis @ 00:00

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