kiessig@fortune.UUCP (10/01/83)
Has anyone out there ever tried to take a picture of a CRT screen using a polaroid camera? Something like the top-of-the-line SX70? Just wondering of that would really work; especially if you don't have a tripod or somekind of hood to mask glare. Rick
hope@gatech.UUCP (10/12/83)
I'm not sure about SX70 shots, but I have successfully photographed
high-res color graphics monitors. I use Kodachrome 64 and a 35/70mm
macro/zoom on my Canon A-1. If and when you do this, make sure you have
no illumination other than the CRT itself, and that the shutter speed is
no faster than the CRT's refresh rate (otherwise you'll get lines going
down and across the frame.) I let the A-1 measure the speed for me (isn't
technology wonderful?) but set the aperture to about 4.0. A polarizing
filter will help fight back reflections from the glass, although this problem
can be minimized by cutting out other light sources.
Happy shooting,
Ted.
--
Theodore Hope
CSNet: Hope @ GaTech ARPA: Hope.GaTech @ UDel-Relay
uucp: ...!{sb1,allegra,ut-ngp}!gatech!Hope
...!duke!mcnc!msdc!gatech!HopeCSvax:Pucc-H:Physics:hal@pur-ee.UUCP (10/12/83)
Since one frame of a TV picture takes 1/30 second to draw (1/60 sec. to write the even scan lines; 1/60 sec. for the odd lines) you need control of the camera shutter speed speed to be sure you get a screenful. The camera should be set on 1/30 sec. (or at least 1/60) to get the whole picture. Hal Chambers Purdue University