Olympus-OM
[Top] [All Lists]

[OM] Re: [lens] Re: Dynamic range of films (and digits)

Subject: [OM] Re: [lens] Re: Dynamic range of films (and digits)
From: "Tom Trottier" <tOM@xxxxxxxxxxxxx>
Date: Sat, 29 May 2004 15:32:03 -0400
If you're working on a tripod with a static subject, you could take a 
series of exposures, say, 3 stops apart, and marry them in the photo 
editor, for VERY wide and smooth dynamic range, then pick the effective 
exposure you like. 

Actually, for any static view, merging multiple pictures could give you 
more resolution. 

tOM

On Saturday, May 29, 2004 at 19:37,
C.H.Ling <olympus@xxxxxxxxxx> wrote:

> Joe, I believe you are still using film and have not play with some good DC
> yet. A good DC can keep very good control of shadows, even the E-10
> can allow for two stops under and pull up in software later (with the
> increasing of noies) with minimum lost of shadow details.
> 
> Here is an example of a E-1 shot with 11-22mm I took today, the foreground
> buildings was under at least 1.5 stops, try to download and play with it
> under you photo editing software you will know how good the shadow is. BTW,
> it was shot under JPEG mode, if you shot RAW it will be even better!
> 
> http://www.accura.com.hk/exp_test.jpg  (~300KB)
> 
> C.H.Ling
> 
> ----- Original Message ----- 
> From: "Joe Gwinn" <joegwinn@xxxxxxxxxxx>
> 
> > >For DC, the highlight is easily clipped but shadow does not, [so] I
> > >always shoot under and adjust it later. A curve can compress the
> highlight
> > >(not cut it off), while maintaining the picture a brilliant look. The sky
> > >will keep without wash-out.
> >
> > If I understand, you are underexposing the frame (less light), to
> > ensure enough of the highlight is captured that you can later
> > compress it using the curve, and just living with the resulting loss
> > of shadow detail.  In bright light, the loss won't be that great, and
> > getting the highlights (and sky) right makes the most difference.
> >
> > The wider the linear range, the easier it is to do this, as the
> > exposure becomes less critical.  And, more shadow detail can be kept.


------- Quidquid latine dictum sit altum viditur -------
   ,__@ tOM Trottier +1 613 231-6115
 _-\_<,         758 Albert St.,Ottawa ON Canada K1R 7V8
(*)/'(*)                N45.412 W75.714
<a href="http://Abacurial.com";>Abacurial Information Architecture</a>
---------------
I would rather be exposed to the inconveniences attending too 
much liberty than to those attending too small a degree of it.
-Thomas Jefferson 1743-1826)


==============================================
List usage info:     http://www.zuikoholic.com
List nannies:        olympusadmin@xxxxxxxxxx
==============================================

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz