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Please explain how can I convert compressed RAF to DNG with same size.

▲ immibis 11 days ago | parent [-]

It's a very common mistake in free software to not design a system end-to-end. Free software people will design some kind of generic container format and go "look! you can put anything in the container!", declare the job done, and then not write tools which actually do put anything in the container, or tools which can make use of anything in the container other than one specific thing.

(See: ActivityPub)

	▲	4ad 11 days ago \| parent [-]
		DNG has nothing to do with free software, it's an Adobe format similar to PDF. It is an open standard, but it is covered by patents and it comes with a no-cost patent license (except that it's less open than PDF because it doesn't define the interpretation for Adobe-specific tags (which ACR/Lightroom uses), not that that matters for raw file in any way). Of course that even Adobe DNG converter can do what the GP asked for (I just tried it[1]), not that I would recommend it for Fuji files. And not that it matters anyway, since the whole point is producing DNG files directly, not converting them. Edit: on my Fuji X-T5 files, using mosaiced data with lossless JPEG-XL compression (supported by MacOS 14+, iOS 17+, and the latest Lightroom/ACR): `edengate:1$ ls -l total 163664 -rwx------@ 1 aram staff 40894672 Apr 4 15:25 DSCF1483.RAF -rw-r--r--@ 1 aram staff 42894224 Apr 7 16:51 DSCF1483.dng` [1] https://llum.chat/?sl=3MCDl4