More wear and tear on the camera port, I suppose, is what they're getting at. But then one could argue removing and inserting an SD card puts more wear and tear on THAT port so... Pick your poison, I suppose.I saw this on another forum:
"Downloading images directly from the camera to your computer system puts much more wear and tear on the camera then using a Card Reader."
I've never heard of that.
More wear and tear on the camera port, I suppose, is what they're getting at. But then one could argue removing and inserting an SD card puts more wear and tear on THAT port so... Pick your poison, I suppose.
I will say it never ceases to amaze the things people can come up with to get worried about.
Just based on what I've seen, I have to question those numbers.... The contacts on an SD card are rated between 50 to 500 cycles, depending on plating...
Not knowing which manufacturer(s) provides the CF/SD card connectors for your camera, the best you can do is find datasheet specs from a wide variety of manufacturers, and make your own best guess. When I searched for "SD card insert eject cycle", I came up with some of the following:
- 3000 – 5000 cycles (various SIM & MicroSD card connectors, no standard SD): SMK Electronics
- 10,000 cycles @ 400–600 cycles/hour: Hirose Electronics (Mouser)
- "10,000 mating cycles are guaranteed": Kyocera 5138 series connector
- 10,000 mating cycles max durability: Molex