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Re: RGB to VGA on a IIGS (again)



"mdj" <mdj.mdj@gmail.com> wrote in message 
1182608673.354371.135120@i13g2000prf.googlegroups.com">news:1182608673.354371.135120@i13g2000prf.googlegroups.com...
> On Jun 24, 12:18 am, "Bryan Parkoff" <nos...@nospam.com> wrote:
>> "mdj" <mdj....@gmail.com> wrote in message
>>
>> 1182580110.751279.80970@g37g2000prf.googlegroups.com">news:1182580110.751279.80970@g37g2000prf.googlegroups.com...
>>
>>
>>
>> > On Jun 23, 3:57 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
>> >> mcph...@yahoo.com wrote:
>> >> > I know this has been asked before, but I was wondering if there were
>> >> > any new RGB to VGA upscaling converters out that were particularly
>> >> > good for this task. The XRGB-2 is no longer available (and was
>> >> > pricey).
>>
>> >> > I would like to do RGB rather than composite to VGA with a GS and a
>> >> > viewsonic LCD.
>>
>> >> Right--if you start with composite, then the result can never be
>> >> any better than that, no matter what format you convert to.
>>
>> > The 'simple' solution is to use an LCD TV with a SCART input on it,
>> > and use Roger's IIgs->RGB cable. The results will depend on the
>> > quality of the TV.
>>
>> > I tried this a while back with my TV (A 32" model, a bit inconvenient
>> > placing atop an Apple II) and the results were quite acceptable. On my
>> > Apple II though, I've now decided to regress to a green phosphor
>> > monochrome display. For a non-gamer, this gives the best possible
>> > results, but I would certainly like to find a small LCD TV that worked
>> > well.
>>
>>     I would be surprised to see Video (NTSC) to VGA Converter 
>> athttp://www.ramelectronics.net/html/video-vga-gvm-2000.html.  I am sure 
>> 80
>> column is unreadable on VGA screen unless digital filter is used isntead 
>> of
>> analog.  Do you agree?
>
> I'd imagine pretty much all these converters use some form of digital
> storage.
>
> 80 column text tends to look a little odd, with alternate scanlines
> interpreting the pixel widths slightly differently. Readable, but not
> particularly clear.
>
> What's needed is a converter that can lock onto the Apple II's dot
> clock...

Matt,

    I agree.  What if I want to use NTSC to VGA Frame Grabber?  I would want 
to capture 80 column TEXT and double high resolution screen into JPG / BMP 
format, but NTSC to VGA frame grabber picture may not look great like Video 
to VGA converter.  You stated like 80 column text tends to look a little 
odd.  It might does the same to do with double high resolution.  What do you 
think?  NTSC to VGA Frame Grabber is shown on 
http://www.sensoray.com/products/2250data.htm.

Bryan Parkoff