Digicam as Video Source

Here is one TV testcard image

Roger

Very nice! I used it to adjust the "focus" on my eight-year-old TV set which I recently repaired (bad cap in the vertical circuit) and it's as good as new!

Thanks, I will save this image to my "library"

If you can find an old Radio Shack Color Computer (around $10 these days) you can easily create as many test images formats as you like. You can save the programs on tape and load them in as needed. Better than the old B&K flying spot scanner systems - and color too!

Dang, that's a good idea, I dunno why I never thought of that. Here I've been using a VCD in a DVD player.

A couple more links for monitor test cards.

Roger

I used to do the same thing with my Commodore 64 back in the '80's. I had written some simple programs in BASIC that would produce crosshatch and dot patterns as well as color bars. Ran them off the floppy disk. I always wanted to burn the programs to EPROM and stick them in a cartridge but I never got around to it.

I did this too, but I used the SX-64 portable computer with the built in disk drive and 5" color monitor. I had additional patterns, as well, including a window waveform which is a large black box on a white background to check for smearing at sharp transitions. I also used it to test a 25 KW TV transmitter when I built Ch 58 in Destin, Florida about 12 years ago.