On 8/2/22 01:53, John Fine wrote:
> On Mon, Aug 1, 2022 at 8:36 PM 'dkloi' via hugin and other free
> panoramic software <hugi...@googlegroups.com
> Thanks! I remember long ago seeing that in the documentation and being
> annoyed that it wasn't in the camera menu system and concluding it was
> about some different model.
> But I checked again and it is right there where it is supposed to be.
> Somehow I have been failing to notice it all this time.
> I quickly took a picture that needs more range than jpg has. Simply
> viewing the arw with the microsoft viewer shows just as much noise in
> the dark areas as I'm used to. But converting arw to tiff with
> rawtherapee gave me much better results than I'm used to. The result
> still has more noise than the JPG but only a little bit more. So the
> compression seems to be destroying information needed for noise
> reduction, and I've been using raw incorrectly all this time.
I've been using RAW ever since I first got my old (no longer working)
Maxxum 7D. I saw advice (I think on this list) saying that the best
quality results came from starting with RAW, sticking with
high-dynamic-range color (16-bit per channel) for all processing, and
only produce a final JPG *when you're done*.
In other words, don't throw away any image information until you no
longer need it - when it's going out the door.
I've occasionally made an "HDR" image from JPGs, but histograms showed
spikes in each chennel, because JPG is missing 8 bits of image data per
I think it's also best to archive the source RAW files (they're like
negatives from the days of film) and your processing tool's settings
(PP3 files for Rawtherapee) in case I want to go back and rework them.
Perhaps I've learned better how to deal with noise, or adjust
color/contrast/etc since I processed it previously.
Thanks for the links for the online guides, learned a lot more about the
A7R IVA than I might have otherwise. I still want one. :)
wandering the landscape of god
My password is the last 8 digits of π.