I guess it doesn't really matter. I was assuming that because a tiff is a larger file it would have more data in it. What started this line of thought is that someone didn't know how to edit a cr3 file in darktable and it was recommended that he convert to DNG and edit that. I just always thought tiff was better because it was a larger file.
On Sat, Jan 23, 2021 at 2:03 PM John Seberg via PLUG-discuss <[email protected]> wrote: > > I'm not clear as to why you would want to convince them, or why that might > make you stingy. > > Also, I'm not entirely up-to-date on the latest TIFF specification, and I > don't know much about DNG, at all. > > I think it's likely that DNG is higher resolution - keeps more data. It might > even be the native format for equipment, and not practical for them to > discard completely. > > Consider looking into the following to build your argument: > > 1) Color depth. This is my first suspicion. By converting DNG to TIFF, one > might be discarding colors. I've seen color depths as high as 64 bit. So, > what is the max supported by TIFF and DNG? TIFF might be limited to 16 bit. > > 2) Stored attributes. Formats often support attribute/values (a.k.a > metadata), and TIFF might have some limits, here. What if your photographer > colleagues discovered that their images lost all the aperture values because > of your suggestion? They have a great shot, and want to see their camera > settings? > > Regarding compression, in my experience, it was optional, and typically > lossless (ZIP or LZW) with TIFF. JPEG compression is lossy, and I think that > may be a TIFF option to be avoided by somebody wanting to preserve all > possible data. > > Cheers, > > > > > > On Saturday, January 23, 2021, 7:06:10 AM MST, Michael via PLUG-discuss > <[email protected]> wrote: > > > > > > proprietary is the word! > > On Sat, Jan 23, 2021 at 9:03 AM Michael <[email protected]> wrote: > > > > I mean like a DNG file is an Adobe product and I'm trying to convince > > my photographer colleagues that they shouldn't use DNG but rather that > > they should be using TIFF files when they need to convert a closed > > format (I can't think of the correct word) image file to something > > darktable can read. What do all of you think? Am I just being too.... > > stingy? > > > > On Sat, Jan 23, 2021 at 8:50 AM Michael <[email protected]> wrote: > > > > > > how is a tiff file licensed? My web search didn't show it! > > > > > > > > > -- > > > :-)~MIKE~(-: > > > > > > > > -- > > :-)~MIKE~(-: > > > > -- > :-)~MIKE~(-: > --------------------------------------------------- > PLUG-discuss mailing list - [email protected] > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss > --------------------------------------------------- > PLUG-discuss mailing list - [email protected] > To subscribe, unsubscribe, or to change your mail settings: > https://lists.phxlinux.org/mailman/listinfo/plug-discuss -- :-)~MIKE~(-: --------------------------------------------------- PLUG-discuss mailing list - [email protected] To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss
