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Old 20 May 2009, 17:03   #722
Ed Cruse
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Join Date: Sep 2007
Location: Las Cruces, USA
Age: 66
Posts: 351
I did some more testing and measured the Amiga display aspect ratios as accurately as I could on my LCD monitor. Aspect-ratio set to 5:4 to compensate for my 5:4 LCD monitor. KAR disabled. All tests were done with a PAL screen with PAL circle and NTSC screen with NTSC circle. Initially WinUAE was in FS mode, I made the measurements and then without making any changes to the Amiga side I simply hit F12 and enabled Auto-Scale and made the measurements again. Results below. 4:3=1.3333, 5:4=1.25. The aspect ratio should be 1.333 for all four tests.

FS:
NTSC 1.326 (round circle)
PAL 1.235 (stretched circle)

Auto-Scale:
NTSC 1.328 (round circle)
PAL 1.328 (round circle)

As you can see FS with PAL is the only one that has the wrong aspect ratio and wrong circle. There's a bug in FS PAL.
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