You can run a capture test sequence similar to what I demonstrated the result of on http://homepage.mac.com/godders/Pentax-DS-150x-timing/ That gives you in-camera performance characteristics. If it matches or exceeds the results with the Sandisk Ultra II cards, it's a solid 60x card.
With a card reader, you can time the transfers for read and download speed, but that's giving you the combined performance of the reader and the card. All readers are not equally fast. I posted this a week or two ago: > Just to be sure, I tested download speed again. Sandisk ImageMate 12- > in-1 reader, Power Mac G5 tower USB 2, checking 'disk activity' with > the Activity Monitor application.... > > On a full card with varied mix of JPEG and RAW files, > - Transcend 150x - Read speed varies from 7.9 to 8.9 [EMAIL PROTECTED] > - Sandisk Ultra II (60x) - Read speed varies from 7.2 to 7.6 > [EMAIL PROTECTED] > > Average 8.4 vs 7.4 [EMAIL PROTECTED] means average performance gain of > 13.5%. > > In real world terms, this means 3 min, 50 seconds to transfer a full > 2G 150x card vs 4 min, 30 seconds to transfer a full 2G Ultra II > card, in round numbers. Timed out with a sweep second hand > wristwatch, the reality is pretty close to the calculation. That's a > useful if not earth shattering improvement. Godfrey On Jul 23, 2006, at 2:10 PM, Paul Stenquist wrote: > Just time the dump of the card and compare it to a known name-brand > card. If it can match a SanDisk 60X, you got a good deal. > Paul > On Jul 23, 2006, at 5:02 PM, Collin R Brendemuehl wrote: > >> They've got some generic, no-name 1 gig SD cards by the register. >> $24.99. Tough to resist, so I grabbed one. (And paid for it, of >> course.) >> Does anyone have a speed test procedure to use to evaluate the >> "60x" rating? -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
