On Sun, Dec 01, 2013 at 10:36:13PM -0600, Christine Aguila wrote: > Very nice, work, Larry! Excellent. Cheers, Christine
Thanks Christine. I spent most of the day trying to get stacking programs to work and get a cleaner version. I finally got an image out of nebulosity, but it looked worse than what I got from a single frame. Meanwhile I loaded Deep Sky Stacker on the Windows laptop I use for work, and it would just choke and crash. At some point, I'll give it another try, and I learned some important things. Like, with astrotracer, it seems like focal length time seconds seems to need to be below 3,000 (200mm * 15 Sec) maybe a bit less. That's five times better than the 600 rule. > > Sent from my iPad > > > On Dec 1, 2013, at 6:06 AM, Larry Colen <[email protected]> wrote: > > > > > > http://www.fluidr.com/photos/ellarsee/sets/72157638239972733/ > > > > Even with the astrotracer 30 seconds at 500mm is too long. > > Now, I need to find stacking software for my mac. > > > > These were photographed on Empire grade at the gate for Grey Whale ranch, > > with my Pentax K-5 II, using my O-GPS 1 in astrotracer mode. > > Some were shot with John Francis' 80-200/2.8 and some with my bigma. > > > > I learned that using a ballhead sucks for astrophotography. It is > > impossible to make fine adjustments in just one axis. Hell, it is > > impossible to make accurate fine adjustments period. > > > > -- > > Larry Colen [email protected] http://red4est.com/lrc > > > > > > -- > > PDML Pentax-Discuss Mail List > > [email protected] > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above and > > follow the directions. > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen [email protected] http://red4est.com/lrc -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
