Re: PAW: moon
On Sun, 25 Apr 2004, Peter J. Alling wrote: > Not "as sharp as I would have hoped." indeed. This appears to be a very > sharp photo. You can see a full resolution version at http://www.phred.org/~alex/pictures/moon/moon-bluesky-large.jpg It appears to me that the telescope was slightly out of focus. It could also have been a limitation of the telescope or a result of atmospheric disruptions. I haven't tried printing this yet, but I don't think that it is sharp enough for doing that. It is a good enough photo to have whetted my appetite though, and I look forward to trying more astrophotography. A friend (who was also there) has a 1200mm f4 Newtonian telescope which is very bright and sharp. We can't get the focal plane of the camera close enough to get good focus with prime focus photography, but we are working on possible solutions for that problem. That telescope would be fast enough for us to do some deeper space objects and should make focussing easier too. alex
RE: PAW: moon
I hope to try that too. I don't think that the *ist D is the right camera for it though (longer exposures will have more noise). A lot of the coolest deep space astrophotography is being done with dedicated cameras that can have proper cooling for the CCD. Many of these are actually hacked from cheap webcams. None of my friends have telescopes with equatorial mounts which also makes such photography more difficult. You'll get streaks instead of steady images without one. We set up at a city park (Greenlake, Seattle, WA) yesterday. The viewing was quite good, but I'm sure that it would be even better if we got outside of the city lights. alex On Sun, 25 Apr 2004, Tom C wrote: > Cool shot Alex! > > It's always been my aspirations to get into astrophotography, especially > deep space objects. > > Tom C. > > > > > > From: alex wetmore <[EMAIL PROTECTED]> > Reply-To: [EMAIL PROTECTED] > To: [EMAIL PROTECTED] > Subject: PAW: moon > Date: Sun, 25 Apr 2004 10:10:09 -0700 (PDT) > > Last night I got together with some friends and their telescopes. > I brought along my *ist D. > > This was shot with a 1540mm f11 telescope (Orion Starmax or something) > and the *ist D in prime focus (telescope acting as the primary lens). > ISO 200, 1/10". > > http://www.phred.org/~alex/pictures/moon/moon-bluesky.jpg > > No real processing except for contrast adjustment, cropping, and a > little sharpening. > > Focusing through the telescope was very difficult, so this isn't as > sharp as I would have hoped. It gives us more reasons to try again. > This is a nice little telescope for photography though, as it has > T-threads right on the eyepiece mount, was reasonably priced, and very > compact. > > alex > > _ > Watch LIVE baseball games on your computer with MLB.TV, included with MSN > Premium! > http://join.msn.com/?page=features/mlb&pgmarket=en-us/go/onm00200439ave/direct/01/ > >
Re: PAW: moon
Not "as sharp as I would have hoped." indeed. This appears to be a very sharp photo. alex wetmore wrote: Last night I got together with some friends and their telescopes. I brought along my *ist D. This was shot with a 1540mm f11 telescope (Orion Starmax or something) and the *ist D in prime focus (telescope acting as the primary lens). ISO 200, 1/10". http://www.phred.org/~alex/pictures/moon/moon-bluesky.jpg No real processing except for contrast adjustment, cropping, and a little sharpening. Focusing through the telescope was very difficult, so this isn't as sharp as I would have hoped. It gives us more reasons to try again. This is a nice little telescope for photography though, as it has T-threads right on the eyepiece mount, was reasonably priced, and very compact. alex
Re: PAW: moon
Exceptionally cool! Norm alex wetmore wrote: Last night I got together with some friends and their telescopes. I brought along my *ist D. This was shot with a 1540mm f11 telescope (Orion Starmax or something) and the *ist D in prime focus (telescope acting as the primary lens). ISO 200, 1/10". http://www.phred.org/~alex/pictures/moon/moon-bluesky.jpg
RE: PAW: moon
Cool shot Alex! It's always been my aspirations to get into astrophotography, especially deep space objects. Tom C. From: alex wetmore <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: PAW: moon Date: Sun, 25 Apr 2004 10:10:09 -0700 (PDT) Last night I got together with some friends and their telescopes. I brought along my *ist D. This was shot with a 1540mm f11 telescope (Orion Starmax or something) and the *ist D in prime focus (telescope acting as the primary lens). ISO 200, 1/10". http://www.phred.org/~alex/pictures/moon/moon-bluesky.jpg No real processing except for contrast adjustment, cropping, and a little sharpening. Focusing through the telescope was very difficult, so this isn't as sharp as I would have hoped. It gives us more reasons to try again. This is a nice little telescope for photography though, as it has T-threads right on the eyepiece mount, was reasonably priced, and very compact. alex _ Watch LIVE baseball games on your computer with MLB.TV, included with MSN Premium! http://join.msn.com/?page=features/mlb&pgmarket=en-us/go/onm00200439ave/direct/01/
