CompuServe Messages

#video capture hardware

    10-Feb-95 11:21:58
Fm: Douglas Fifield 73172,1707
To: Ben Ferguson 75600,3531
Ben, We use still-video cameras to photograph manufacturing and assembly processes and then grab them using either Targa+ 16/32 cards or a Canon capture card. We use Sony Mavica 2000's and Canon RC570's as cameras. The Targa+ 16/32 was priced around $2000 new, but it is older technology now and you may find used ones on the market in your price range. The Targa and the Canon both capture 2 fields per frame (assuming you are shooting in the high resolution mode – 25 photo's per disk). Other capture cards we have looked at grab only one field at a time, resulting in a lower quality image. What you see when you view the image from the camera diskette may have something to do with the discrepancy in image quality as well. If you view the image from the diskette on a regular TV, you are seeing an analog signal sent to the TV in NTSC mode. When you capture that image and digitize it with the ComputerEyes/RT video digitizer, you see an image that may have lost data in the process. It depends on how many fields are captured, how much color, what format the digitized file is stored in, the resolution of your computer monitor, what resolution and color depth you have set for your Windows environment (if you are running Windoze). There are a lot of variables. Drop me a line if you have further questions. Douglas Fifield Tennant Company Minneapolis, MN with OzWin 1.10