[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Apple II - Black & White



Paul Schlyter wrote:
In article <46c45fe3$0$4525$9b4e6d93@newsspool3.arcor-online.net>,
Linards Ticmanis  <ticmanis@gmx.de> wrote:


Forget about converting the Apple to PAL. It means getting another
mainboard, and the picture quality of PAL Apples is not that great
anyway in graphics modes, you can expect moire patterns and a very
noticeably "shivering" picture. Plus the picture looks "squished" with
(American) software since the aspect ratio is quite different.


I don't think so -- both Europe and the US had 3:4 as the aspect ratio
for teleivision.  If your monitor should present an image with a weird
aspect ratio, it's just a matter of adjusting the height of the image
to get it right.

But the PAL apple still just uses 192 vertical lines, and that's
an even smaller fraction of the 312-line PAL field than of the
252-line NTSC field.  It will take 25% vertical overscan to
compensate for the compression.

-michael

NadaNet file server for Apple II computers!
Home page:  http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it's seriously underused."