Re: Best LCD for IIGS

[MdntTrain <js@cimmeri.com>]

On Nov 7, 6:33 am, Drew <GoggleD...@gmail.com> wrote:
> On 24 Oct, 17:58, MdntTrain <j...@cimmeri.com> wrote:
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> > On Oct 23, 1:37 am, Drew <GoggleD...@gmail.com> wrote:
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> > > On 23 Oct, 02:05, Steven Hirsch <snhir...@gmail.com> wrote:
>
> > > > Christopher G. Mason wrote:
> > > > > As for the artifacts, its likely from the upscaling of the video to fit
> > > > > theLCDpanel. The IIgs technically outputs 240p (progressive) video,
> > > > > although the internal processor may handle it as standard 480i
> > > > > (interlaced) video and add in scanline artifacts as well (the first
> > > > > field is the IIgs video, the second field is blank). At a minimum you
> > > > > can turn off the stretching of 4:3 video to 16:9 (if its a widescreen
> > > > > display). Otherwise you could try using a VERY expensive external video
> > > > > processor like the DVDO series from Anchor Bay for better results and
> > > > > tweakability. They will allow you to use any DVI/HDMI equipped monitor
> > > > > with your IIgs as well.
>
> > > > I have no experience with the Anchor Bay unit, but I am very happy with the
> > > > results from a Highway Model 100 RGB (Scart) --> XGA converter.  Using Roger
> > > > Johnstone's cable (I did have to switch the signal used for sync from the
> > > > default) it presents a quite reasonable picture with no motion artifacts.
>
> > > > Better still, it's fantastic as a scan doubler for my Amiga 2000!  The 640x480
> > > > interlaced NTSC mode, unusable on a CRT monitor due to major flickering, just
> > > > looks beautiful.  Stable as a rock.
>
> > > > The unit was about $220 US when I purchased it, but is well worth it in my
> > > > opinion.
>
> > > > Steve
>
> > > Hi Steve,
>
> > > Do you have any screenshots of what GS/OS and some GS games (Sierra
> > > ones would be good :-)) look like with the unit?
>
> > > Cheers
> > > Drew- Hide quoted text -
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> > > - Show quoted text -
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> > Drew, you might want to search the archive here for the old
> > discussions I started here on similar subjects:
>
> > IIgs RGB to VGA experiment
> > IIgs RGB to YPbPr Component experiment
> > IIgs RGB to VGA continued
> > RGB to Component video converter (SCART)
>
> > Some of it applies.
> > JS
>
> Thanks for the info. I picked up a CYP CM-345S (which does seem
> exactly like the Highway 100 unit) and it all outputted ok using a
> Scart cable modified to sync on composite (standard Vintageware seemed
> to be stable but picture quality just not as good as sync on
> composite). Output (using 1024 by 768) was not bad and is very close
> to what i got on Scart onto LCD (Samsung T200HD, but haven't got one
> at the moment to really compare). Though i have only tested GS/OS and
> a few games. So would recommend the unit if you are after something
> acceptable. I managed to pick one of ebay for £46 :-), so not too
> costly.
>
> Though I have decided to go down the route of picking up an Amiga
> monitor as they do the trick nicely and plenty available in the UK it
> seems. LCD is good as backup when the old CRTs finally die :-)
>
> Drew- Hide quoted text -
>
> - Show quoted text -

I got the best results having the converter output at 640x480 (least
amount of processing), then letting my LCD do the upconversion to it's
native resolution, or better, letting my multisync CRT just slow down
to a natural rate of 640x480.   These results might not hold true for
everyone -- just depends on whether their monitor's video handling
exceeds the converter's abilities.

I tried the Amiga monitor approach also, but remember, not only is the
screen really small (too small for my eyes these days), but your video
won't be nearly as nice looking: the other big advantage to the
converter is that you're in 480p mode as opposed to 240p on the Amiga
screen ... meaning, for one, solid colors without missing interlace
lines.

I get the nicest looking results using the coverter into a good CRT
VGA 17" monitor (a Dell/Sony Trinitron in this case).  The ideal CRT
would be native 640x480... but I've never found one of those in 17" or
larger.

JS