Thanks a lot John! --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "john dean" <deanwork2003@...> wrote: > > Kevin > > You can do it either way. However, when you MERGE TO HDR (high dynamic > range- 32 bit) the raw file must be completely raw and unprocessed 16 > bit data without adjustments. The other thing to remember is that > these exposures must not be more than 1 stop apart in exposure > otherwise you will begin to experience banding artifacts. > > I leaned this procedure from Martin Evenings really good book > Photoshop CS2 for Photographers. Later I read more about it in Bruce > Frasier's outstanding Real World Camera Raw CS2, which I think > everyone who owns a digital camera should have. It's cheap and > extremely well written like all his books. It really helps you > understand the really useful capabilites of camera raw and do the > least damage to your files. > > If you just want a straight forward description of what Photoshop's > HDR capability is all about here is a link that describes it. > > http://www.adobeevangelists.com/photoshop/index.html > > If you search Photoshop's own data base through the program, typing in > HDR you will find essentially this same info. > > I think this HDR stuff is the most under rated aspect of CS2 along > with the new smarter noise reduction capability and spot healing > brush. If you are shooting digital capture and are not working in CS2 > you are missing a lot in my opinion. Of course it's expensive and we > can't share it any longer with our loved ones ;-( . > > John > > > > > > > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "digikdm" > <monroekd@> wrote: > > > > John, > > Could you elaborate on your technique for "droping" your bracketed > > exposures in to PS-CS2 with instant registration and combine them > > into one image. Is that done before or after the raw conversion? > > Thanks > > kevin monroe > > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "john dean" > > <deanwork2003@> wrote: > > > > > > One of the very interesting developments in digital raw workflow > > > centers around the ability to shoot 3 bracketed frames - over, > > under, > > > and in the middle, drop them into PS CS2 with instant registration > > and > > > combine them instantly as one very smooth entity. It's a major > > > improvement in dynamic range over the one frame 35mm camera or any > > ccd > > > scanner, certainly including Imacon. That three frame registration > > can > > > happen in about the time it would take to power up your scanner much > > > less have your film processed. However we aren't talking people > > photo > > > though, its got to be static right now. > > > > > > john > > > > > > > > > > > > > smaller pictures and stitch them together. That way, you retain > > the > > > > advantages of the quick turnaround, yet can still get gargantuan > > > images with > > > > loads of detail. Modern stitching software, like PTGui, has gotten > > > really > > > > good, and with some practice you can get really quick at it. > > > Shooting a 4x4 > > > > array can realistically give you at least the equivalent of a 2x2 > > sized > > > > sensor, maybe even 3x3, after you factor out the overlap, and the > > > > interpolation filtering. So even a cheap eight megapixel camera > > like > > > a Rebel > > > > XT should give you more than enough resolution. > > > > > > > > -- > > > > > > > > Ciao, Paul D. DeRocco > > > > Paul mailto:pderocco@ > > > > > > > > > >
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Re: Multiple Bracket Exposures with High Bit HDR and CS2
2006-03-24 by digikdm
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