Overall you can take a multitude of short exposure lower ISO shots, avoiding the noise and software-stack them.
Noise is a factor, of course, but I'm sort of concluding that for night/dark sky images that high-ISO performance is not the issue. For concerts or street scenes where one has one shot/exposure, yes it's a factor. The max you can go with a tripod, on a mount that doesn't track the sky, for wide-field exposures of the heavens, is about 20 seconds regardless of ISO, aperture, focal length, etc. Tom On Thu, Dec 24, 2009 at 8:46 PM, Joseph McAllister <[email protected]> wrote: > On Dec 24, 2009, at 16:54 , David Savage wrote: > >> But if you wanna' freeze the motion of stars high ISO performance is >> critical. > > Aw, jess bring a huge field tripod with clock drive as for a Meade or > Celestron 8" or larger SC mirror 'scope, a 12 volt car battery, then clamp > that Pentax to it with some gaffer tape and let 'er rip! Take another shot > with it unplugged for the foreground, then merge. > > :-) > > Merry Holidays and a fortune filled New Year to you all, stars or not! > > >> 2009/12/25 Thomas Cakalic <[email protected]>: >>> >>> I like by pictures taken in the dark to look that way, so I'd never >>> use the high ISO settings. :-) >>> >>> 2009/12/24 Margus Männik <[email protected]>: >>>> >>>> Tim Bray wrote: >>>>> >>>>> On Wed, Dec 23, 2009 at 7:27 PM, Subash <[email protected]> wrote: >>>>> >>>>>> >>>>>> ...and gives it a 'highly recommended': >>>>>> >>>>>> http://www.dpreview.com/reviews/pentaxkx/ >>>>>> >>>>> >>>>> And says the low-light handling is better than the K-7's. Hmf. -T >>>>> >>>> >>>> Yes, and they're absolutely correct. I tested the camera for 3 weeks and >>>> as >>>> a result, K-7 doesn't impress me any more. It's dark here... >>> > > Joseph McAllister > [email protected] > > "Gaudeamus igitur, juvenes dum sumus..." > http://tinyurl.com/ndmfhb > > > > > > -- > 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.
