Archived posting to the Leica Users Group, 2005/08/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Don't take the speeds literally, those are nominal speeds of the interface. There may be software or communication protocols that add overhead that can result in an effective speed lesser than the nominal speed. Andy Schroter ----- Original Message ----- From: Stan Yoder <vze2myh5@verizon.net> Date: Thursday, August 18, 2005 4:04 pm Subject: [Leica] Memory card write speeds > Earlier this week, there was a discussion of card vs. digicam > write speeds, asking whether it was > worth investing in a card that can write faster than the camera does. > > I conducted an empirical test with my Digilux-2. I ascertained > from Panasonic that its max write > speed is 2.3mb/sec. > > A 1gb SD card will hold c.91 RAW exposures in the D-2. That's > about 10.75mb per exposure. > > Doing the math, it should take the camera c.4.67secs. to write a > RAW exposure to any card that has a > write speed of 2.3mb/sec or greater. > > My actual results: 1) with a basic card it took about 11 secs for > the camera to clear for the next > exposure; 2) with a Sandisk Ultra II card it took 6.5secs. The > Ultra II writes at 9mb/sec., per > Sandisk's website. > > Obviously I'm missing some factors) here. What are they? > > And would one of the new-fangled 150x cards reduce the time > further, in this context? > > Puzzled, > Stan Yoder > Pittsburgh > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >