Since I’m using Retrotink 2X Scart and OSSC and had 1 or 2 stabs on getting a somewhat calibrated ST video output I might as well add my 2c here.
In direct comparision -and for my usage profile, which is mostly capturing- I would opt for the OSSC. 95$ (R2XS) vs 135€ [OSSC) is not that much of a difference, esp. regarding the features the OSSC offers. The R2XS is fine in all aspects, but you may need special cables to have a correct picture (esp. regarding brightness, see below). R2XS is a lot more plug-and-play though.
metalages wrote: ↑Tue Aug 25, 2020 7:16 am
Does it adapt correctly to the fact RGB signals are highter on the ST than the SCART standard or do you need to insert some resistors on the scart cable to have correct black / color levels ?
TLDR; it does not - mind your RGB levels, TFTs and converters are behaving different than CRTs.
Old CRTs have a different resistance on the RGB lines than modern TFTs/Flat screen TVs/converters - so the color signals are „off“ on most modern displays/converters when it comes to brightness/color correctness. (Think of it a bit like: just connecting
a CRT to the ST changes the RGB levels, and the ST and the CRT were calibrated to give a good picture using those changed RGB levels).
And that‘s my main caveat with the R2XS - I asked Mike (which does a superb support for his products btw) if the HW is capable of adjusting the RGB resistance like the OSSC is. According to him it isn‘t and it is his firm stance that the cable should do the job. That‘s definitiveley a valid way to see things, but it will also lend to alot more bad captures/overbright Displays (because brightness will be set all the way up on the TFT to get a white, but then the black level is lost) and most users won‘t even know.
So, IF you have a cable with RGB resistors or have none and are not that keen on seeing the correct colours - go get a R2XS. Or get a corrected cable and then get an R2XS. It is a very nice device and it is unbelievably better than any of those cheap 25Hz-stuttery HDMI converters many people use. It has less features than the OSSC, yes, but for most users that‘s of no real concern. Picture quality wise it is comparable if fed with the right RGB levels.
Also: If you have a 15khz capable TFT I strongly recommend getting a good VGA adapter with RGB pots like McSwitch ( https://www.gossuin.be/index.php/shop
) or Ube Video Adapter (https://www.exxoshost.co.uk/atari/store2/