"so what we're essentially looking at is: what is the difference between brightening in-camera by increasing ISO (and using hardware, mostly analog amplification) vs. brightening after-the-fact in your Raw converter (digital correction)?"
and "As you can see above: there's a very modest visual difference* in noise between shooting at ISO 6400, compared with using the camera's base ISO (100) and digitally pushing later." and "Now, we're not saying there's no cost to keeping your ISO low and brightening in post.** We're saying that the cost of a 6 EV push of an ISO 100 shot (vs ISO 6400) is only a mere half a stop or thereabouts in shadows, with almost no visible cost in midtones.***" On Thu, May 19, 2016 at 10:04 AM, Gonz <[email protected]> wrote: > The analog amplifier inside (and even in ISO invariant cameras) will > still get you a better amplification of the darker portions than the > pseudo amplification using the digital values through post processing. > Read the dpreview article in more detail for explanation of this. > > On Thu, May 19, 2016 at 9:57 AM, Mark Roberts > <[email protected]> wrote: >> Gonz wrote: >> >>>> Does this mean that you don't get any advantage from shooting a higher iso >>>> rather than under exposing at a lower ISO? >>> >>>Not true. Exposing at the right ISO will give you less noise at the darker >>>end. >> >> No it won't. If the camera is "ISO Invariant" (and there are lists >> available in the links below) you'll get *exactly the same* noise from >> underexposing and compensating in post as you would from cranking up >> the camera's ISO setting and shooting the correct exposure. This is >> because, with these cameras, "turning up the ISO setting" does exactly >> the same thing inside the camera. >> >> https://medium.com/@simonfuhrmann/iso-invariance-in-digital-cameras-a-case-study-7080791b5e78 >> http://improvephotography.com/34818/iso-invariance/ >> http://www.dpreview.com/articles/7450523388/sony-alpha-7r-ii-real-world-iso-invariance-study >> >> >> - >> >> -- >> Mark Roberts - Photography & Multimedia >> www.robertstech.com >> >> >> >> >> >> -- >> 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. > > > > -- > -- Reduce your Government Footprint -- -- Reduce your Government Footprint -- 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.
