On Sep 27, 2012, at 1:18 AM, Joseph McAllister wrote: > Damn. Went right out and bought one - online from Buy.com - $213 with tax, > free shipping. > > Interesting to see if it will work in AstroTracker mode mounted on my > Celestron 8" 2000mm SCM telescope, or my 1000mm, or my 500mm, or my 350mm. I > suspect I'll end up using the DA* 200mm as was used in those wonderful > examples of what can be done.
SR focal length setting only goes up to 800mm, If I recall correctly. I really need to get off of TDC and learn about image stacking. For what it is, the astrotracer is amazing. It seems to knock out about 90% of the star movement, but that's not 100% Another caveat, is that I am learning how important a good tripod head is. I'm going to need to get a much better one before I do much more with astrotracer. Accurately setting focus to infinity can be tougher than you would think. If Jupiter is out, you can use live view and focus on Jupiter for that. > > The advantages of using the big scope are the motor drive and scale ring to > move the unit a certain amount between groups of shots, and using the finder > scope to align the thing up on the same star every 2 exposures. > > I'm moving this weekend, so nothing will be done in the near future. But I'll > have a nice deck and a concrete driveway to set up my heavy duty Celestron > tripod. > > Thanks for pointing this out to me Darren. > > > On Sep 26, 2012, at 10:57 , Darren Addy wrote: > >> I do not recommend clicking the following link either: >> if you do not have a K-r/K-5 or 645D >> OR >> if you do have one but do not want to be induced to purchase an O-GPS1. >> >> http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=39284452 > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > 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 l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
