Sigma has released a plug-in for Photoshop

[xpatUSA]

Says DPR:

https://m.dpreview.com/news/41268916...-for-photoshop

For those in the know, Sigma's proprietary converter (Sigma Photo Pro) is noted for being a bit inscrutable ** and seriously slow. I once sold a Sigma new model camera immediately after purchase for that very reason - SPP became impossible to use in Windoze XP on my single core Pentium machine.

** = different to Adobe.

Apparently, it works for "Merrill" and "Quattro" models, FWIW.

[xpatUSA]

Some folks have already tried it:

https://www.dpreview.com/forums/post/62088304

Mixed opinions as usual ...