rogerg
06-01-2010, 01:55 AM
G'day all,
It's been a long time between images that I've posted here. Thought I'd share my first long exposureshot with my 7D! Tonight I decided to throw the 7D on the back of the LX and take some easy snaps to see what I got. I was quite impressed with the results considering the ambient temp was as low as 25 degrees and as high as 28 degrees.
I tried my 50mm USM @ F/1.4, but that gave pretty awful stars, so then moved on to my Pentax 28mm F/2.8 and that was quite nice, but I thought I'd zoom in a little, so switched to the 70-200 F/4 @ 200mm and took this snap. The others were 30 sec (only realised after some time I could do long exp via the PC connection - I don't have a bulb cable yet. I've got some other 5 min shots now and an 8min shot I could combine with this, but was processing this while they were being captured :)
This is a single 5 minute exposure @ 1600 ISO at ambient temp about 25-28 degrees, at F/4.
http://www.rogergroom.com/items/201001_IMG_0001_orion_nebula_canon_ 7d
The image is quite noisy as you'd expect for such warm conditions. I was happy to see reasonable detail still shown though.
It was refreshingly easy to take the photograph - easy to frame using the large and bright view finder of the 7D, easy to focus using live view, easy to take long exposure because of the wonderful LX which "just works", etc. Quite enjoyable short 2 hours of messing around :)
I have been doing lots of landscape photography with the 7D but haven't done much astro due to the moon and other commitments. It's a stunning camera for landscape & nature shots, feel like I finally have my wings back after they were clipped by the 350D when moving from film.:cool:
Edit... Just noticed when I packed up for the night that there's a thin layer of cloud over the whole sky (can see it now that the moon has risen). That won't have helped things!
Roger.
It's been a long time between images that I've posted here. Thought I'd share my first long exposureshot with my 7D! Tonight I decided to throw the 7D on the back of the LX and take some easy snaps to see what I got. I was quite impressed with the results considering the ambient temp was as low as 25 degrees and as high as 28 degrees.
I tried my 50mm USM @ F/1.4, but that gave pretty awful stars, so then moved on to my Pentax 28mm F/2.8 and that was quite nice, but I thought I'd zoom in a little, so switched to the 70-200 F/4 @ 200mm and took this snap. The others were 30 sec (only realised after some time I could do long exp via the PC connection - I don't have a bulb cable yet. I've got some other 5 min shots now and an 8min shot I could combine with this, but was processing this while they were being captured :)
This is a single 5 minute exposure @ 1600 ISO at ambient temp about 25-28 degrees, at F/4.
http://www.rogergroom.com/items/201001_IMG_0001_orion_nebula_canon_ 7d
The image is quite noisy as you'd expect for such warm conditions. I was happy to see reasonable detail still shown though.
It was refreshingly easy to take the photograph - easy to frame using the large and bright view finder of the 7D, easy to focus using live view, easy to take long exposure because of the wonderful LX which "just works", etc. Quite enjoyable short 2 hours of messing around :)
I have been doing lots of landscape photography with the 7D but haven't done much astro due to the moon and other commitments. It's a stunning camera for landscape & nature shots, feel like I finally have my wings back after they were clipped by the 350D when moving from film.:cool:
Edit... Just noticed when I packed up for the night that there's a thin layer of cloud over the whole sky (can see it now that the moon has risen). That won't have helped things!
Roger.