I bought a couple of Transcend 150x 2G SD cards (at $40 apiece, I couldn't resist). So I figured I'd revisit the timings we played with in May ...
There is an improvement over 80x cards, not so much for RAW but substantial if capturing in JPEG *** format. Test #1 - set the camera on RAW capture, Manual exposure, Manual focus, continuous drive mode. Set exposure and focus. Set timer to 2 min 15 second. Start timer, use the remote release to release the shutter continuously starting at 2 minute mark, let go of the release at the 1 minute mark, then make another exposure at the moment the write light goes out. Results: 24 exposures in sequence, .4 exposure per second or 2.5 seconds per exposure average. finish write of full buffer in ~16 seconds Test #2 - set the camera on JPEG *** capture, Manual exposure, Manual focus, continuous drive mode. Set exposure and focus. Set timer to 2 min 15 second. Start timer, use the remote release to release the shutter continuously starting at 2 minute mark, let go of the release at the 1 minute mark, then make another exposure at the moment the write light goes out. Results: 90 exposures in sequence, 1.5 exposure per second or .667 seconds per exposure average. finish write of full buffer in ~6 seconds I found the difference to be most understandable when assembled into a stop-frame video ... The two QuickTime movies are linked on this page: http://homepage.mac.com/godders/Pentax-DS-150x-timing/ (QuickTime movies should play in a separate window when you click the links ... tested on Mac OS X in Safari and FireFox. Otherwise, they should download to your system and you can play them with the QuickTime Player. They are ~ 400K and ~ 700K in size.) enjoy Godfrey On May 24, 2006, at 12:02 PM, "Shel Belinkoff" wrote: > With the istDS, using a Transcend 80X card, shooting @ 1/125 sec, I > got 22 > raw exposures in 56 seconds, which works out to an average of just > over 1 > frame every 2.5 seconds. > >> Easy way to determine the camera/card capabilities (whether it is DS >> or DL, or any other model) is to set it up at a reasonable shutter >> speed in continuous mode and shoot a clock with a sweep second hand. >> I did this for the DS with Sandisk Ultra II cards ... >> >> http://homepage.mac.com/godders/speedtest -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
