I keep thinking in photographic terms. In my understanding, exposure depends on:
1 - Subject's brightness 2 - Lens aperture 3 - Shutter speed 4 - Film/Sensor sensitivity Sure you cannot change 1/2/3 during processing, but you can change 4 (sensitivity). OK, Rawshooter calls it Exposure Compensation, not Sensitivity. But since you cannot change 1/2/3... Please slide that Exposure Compensation slider right or left and see what happens to the histogram. You can even recover clipping, isn't that a sensitivity change? OK, let's call it software sensitivity, as opposed to the hardware sensitivity at ADC stage, but we can also call it push processing... Push processing can change ISO, can't it? So at the end the K10D is (among many other things) a reincarnation of a Polaroid camera capable of controlled push processing. Or at least this is how I see it. You can well see it as levels and curves. Dario ----- Original Message ----- From: "Adam Maas" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Wednesday, September 13, 2006 11:01 PM Subject: Re: Does this mean what I think it means? No, you're changing the conversion curve and levels. ISO is normally set at the ADC stage. -Adam Dario Bonazza wrote: > Since a PC is not a camera, what would you adjust when you adjust exposure > during RAW conversion? > Sure you change neither aperture nor shutter speed! I've always thought > you > change ISO sensitivity. > > I can be wrong, but I bet that such a feature is what Pentax is claiming > here. If so, who cares of in-camera RAW conversion? > > Dario > > ----- Original Message ----- > From: "Adam Maas" <[EMAIL PROTECTED]> > To: "Pentax-Discuss Mail List" <[email protected]> > Sent: Wednesday, September 13, 2006 10:43 PM > Subject: Re: Does this mean what I think it means? > > > What program allows ISO changes during RAW conversion? Exposure yes, ISO > no. > > -Adam > > > Dario Bonazza wrote: > >>ISO setting during PC conversion is common stuff. >>ISO seting during in-camera conversion is what they claim. >> >>Dario >> >>----- Original Message ----- >>From: "Adam Maas" <[EMAIL PROTECTED]> >>To: "Pentax-Discuss Mail List" <[email protected]> >>Sent: Wednesday, September 13, 2006 10:16 PM >>Subject: Re: Does this mean what I think it means? >> >> >>Toralf Lund wrote: >> >> >>>>From the Pentax France Page: >>> >>>>Le traitement interne des fichiers RAW permet d'agir sur la taille, la >>>>compression, la balance des blancs, le réglage des ISO (Pentax est le >>>>seul), le ton de l'image, la saturation, la netteté et le contraste. >>>> >>>>via Babelfish: >>>> >>>>The internal treatment of files RAW makes it possible to act on the >>>>size, compression, the balance of the white, the adjustment of the ISO >>>>(Pentax is only), the tone of the image, saturation, clearness and >>>>contrast. >>>> >>>>It sounds like ISO adjustment in post is possible with RAW files. That >>>>would be an earth-shaking capability. >>>> >>> >>>Really? >>> >>>I've always been thinking that since the lower few bits in current >>>high-ISO shots is essentially just noise, you might get output of the >>>same quality by shooting at a lower ISO (and under-exposing), then >>>"multiplying up" the pixels from the RAW file... >>> >>>But what this sound like to me (who doesn't speak much French, either), >>>is merely that details on the ISO setting that already was applied, will >>>be stored in the tags of the file. (And maybe ISO adjustment will be a >>>somewhat more complex operation in this camera?) >>> >>>- Toralf >>> >> >> >>However, that would not be a 'Pentax Only' feature, which they are >>claiming. ISO adjustment in post would be. >> >>-Adam >> >> >> > > > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
