Hi all,
I know its outdated, but I am only free until now. So 4 Dec Comet Holmes with Canon 350D and Megrez 80 FD. ISO 800, 45 secs exposure.
Thanks for looking.
Comet Holmes, complimentary to Jiahao's pictures
- jiahao1986
- Posts: 474
- Joined: Tue Aug 08, 2006 10:59 pm
- Location: Clementi
Hi thanks for all the replies, before more questions pop up, I better admit to several mistakes I made in the picture:
1) Its an average of 53 frames of 45 secs each
2) Shot from NUS rooftop, so there is severe light pollution, I used Orion LPR filter. Looks like IDAS LPS is the next item to order. Hehe
3) In a desperate attempt to save the colour distortion due to LPR filter used and its a modfied camera, I roughly white balance it using a Macbeth card shot under flourescent light with the filter on.
4) In the end, I decided to colour balance with a bit of green tone in the picture.
5) To make the focal ratio small, I used a SCT reducer on the Megrez 80, so you can see severe distortions of stars 50% out the field, I cropped and downsampled to make it less visible.
hope all of you learn from the errors I made. Nevertheless enjoy the beauty of the comet.
1) Its an average of 53 frames of 45 secs each
2) Shot from NUS rooftop, so there is severe light pollution, I used Orion LPR filter. Looks like IDAS LPS is the next item to order. Hehe
3) In a desperate attempt to save the colour distortion due to LPR filter used and its a modfied camera, I roughly white balance it using a Macbeth card shot under flourescent light with the filter on.
4) In the end, I decided to colour balance with a bit of green tone in the picture.
5) To make the focal ratio small, I used a SCT reducer on the Megrez 80, so you can see severe distortions of stars 50% out the field, I cropped and downsampled to make it less visible.
hope all of you learn from the errors I made. Nevertheless enjoy the beauty of the comet.
Photo Album:
http://www.flickr.com/photos/14113965@N03/
http://www.flickr.com/photos/14113965@N03/
Hi, I used my trusty EQ-6 Pro mount. Equivalently Orion Atlas EQ-G mount. Very trusty despite strong winds yesterday.
Photo Album:
http://www.flickr.com/photos/14113965@N03/
http://www.flickr.com/photos/14113965@N03/