Thanks all, Stacking exposures looks interesting. It might give a unique, way-cool effect unique to digital. I don't think is will look the same as film. That is good. There should be a few photographic things only film will do! I wonder if anyone can think of others? It's significant that so many PS plug-ins imitate film effects. I find myself of late trying things like "Holga" and "TX grain." So where's the "Kenna" effect plug in! I got it - a series of plug-ins that emulate a whole range of notable photographer's styles! There are Lucis plug-ins named for painters. AZ Build a 120/35mm Lookaround! The Lookaround Book. Now an E-book. http://www.panoramacamera.us > -------- Original Message -------- > Subject: [SPAM] RE: Long digital exposures? > From: David Dyer-Bennet <dd-b@xxxxxxxx> > Date: Wed, November 19, 2008 10:14 am > To: List for Photo/Imaging Educators - Professionals - Students > <photoforum@xxxxxxxxxxxxxxxxxx> > On Wed, November 19, 2008 08:35, Edwin Blenkinsopp wrote: > > The problem is, of course, digital noise. Aside from noise reduction > > software is there a digital technique, perhaps used with the better > > cameras, that allows noiseless, minutes long, digital exposures? > Amateur astronomers working digitally seem to like layering multiple > shorter exposures to produce a final result. Noise, being, random, will > tend somewhat to cancel out, plus they're running the sensors at a lower > duty cycle so they shouldn't heat up as much. I haven't tried this > technique myself, I'm not sure what you could do with it for pictorial > photography. > -- > David Dyer-Bennet, dd-b@xxxxxxxx; http://dd-b.net/ > Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ > Photos: http://dd-b.net/photography/gallery/ > Dragaera: http://dragaera.info
