Larry, A few thoughts: 1. Either, as Boris wrote, you've got bad/bent contacts (very often with CF readers), or the reader is not designed to read this higher capacity cards. 2. Typically, when you connect a digital camera via USB, at least two types of drivers have to be activated: first - for the connection, and second, - for the "mass storage device". It looks like the second one is not there. I don't know about Canon DSLRs, but smaller, P&S digital cameras from Canon don't work with the generic devices for that (at least under Windows) but require a special driver to be installed before the system can recognize them as a storage device. In the absence of the driver, only software programs that know how to work with cameras would be able to read the content of the camera's storage. Apparently, LR (which I think is capable of doing tethering with Canon DSLRs), knows how to talk to the camera directly.
HTH, Igor On Sat, Nov 17, 2012 at 1:20 AM, Larry Colen <lrc at red4est.com> wrote: > The widow of my friend who passed away from cancer last year asked me > to teach her how to use his Canon 5DmkII. So, first of all, I need to > figure it out. When I was last at his place, we plugged his CF card > into the reader on his desktop computer, and uploaded his last files. > I just tried doing that on my iMac, with no luck. It wouldn't even > recognize the card in finder. I then found a USB cable, plugged it > into the camera and while OSX wouldn't recognize the camera, Lightroom > did. So I was able to back up his last photos (and the last photos of > him) onto my computer. > > The CF card in question is a 64GB card. Do I need a special reader > for it? Does anyone know the reason that the camera isn't showing up > in the finder when it is plugged in with the USB cable, even though > lightroom can read the files? > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.