Windows Vista has built in support for MTP/PTP, and Windows XP (Home or Professional) requires the installation of Windows Media Player 10 or later to add support. MTP / PTP is the newest transfer protocol, adding a revised set of instructions to the PTP standard, allowing transfer of audio and video files. Most recent COOLPIX cameras and the D100 / D200 / D300/ D300S / D700 / D3/ D3S and D3X offer PTP compatibility, the PTP system will become the future standard protocol and will offer camera control capability from a PC. PTP (Picture Transfer Protocol) is a newer protocol for image transfer that can be used with Windows XP (Home/Professional) and Mac OS X. This means that images can be read, not only with the supplied software, but also with Internet browsing software such as Internet Explorer, etc., for added versatility. With USB Mass Storage Class, when USB-compatible equipment is connected, it is recognised as a removable drive like an floppy or hard disk drive. Nikon Knowledgebase (MTP, PTP, and MSC Transfer protocols and Nikon digital cameras) wrote:Nikon digital cameras using USB offer the user a choice of several image transfer protocols, MSC (mass storage class), PTP (Picture Transfer protocol), and MTP/PTP (Media Transfer Protocol/ Picture Transfer Protocol) which are selectable through the camera's menu system. That function is handy if you don't delete photos on the camera after D/L to the PC. * Another unknown for XV & others - will they compare images on the SD card (camera) against ones already D/L (a previous time w/ the same software), to only D/L new images? Photo Gallery shows only images on the camera that haven't been D/L, or at least separates those "new" images from all others left on the camera. * Obviously, "something" either in Vista or loaded on the PC, makes it where XV, IrfanView & maybe others - can read the SD card, but not the same card while in camera via USB. If that turns out to be true, it may sometimes be worth plugging in the SD card directly. UNLESS - for certain uses - XV or others provide function during the import, that Photo Gallery doesn't. This is mostly academic at this point, because removing the SD card from camera, plugging into computer just to use something besides Photo Gallery to import, is not really any easier. * I wonder what XnView is using (in Vista or Canon software.) that allows it to read the card, but not the camera? The "acquire from scanner / camera (WIA)" still doesn't work.īefore, the "Acquire" method didn't work w/ camera connected. * Oddly, by this method, XV DOES allow importing from the card, from XV's File > Acquire. Then once pics are on the HDD, viewing w/ XV or others. just using Photo Gallery & the camera (connected w/ USB). Since discovering this, I haven't fooled w/ it enough to learn what can be done (say, using XV to import pics) vs. Unless (a stretch) this HP computer recognizes the memory card as formatted w/ a Canon camera, thus assigning "Canon" to the device, shown in Explorer. Don't know if it showing this AND XV being able to read the card is related to some Canon software installed (but doesn't work for the camera itself). When I plug in the memory card, what shows in regular Explorer, as a removable drive (assigned a letter), is "Canon DC."Īt the same time, I can't find any Canon programs running. Then, XV (& even IrfanView) can read it (as SD/MMC). That said, I decided to plug my camera's SD memory card directly into my computer's slot for it. Perhaps the Vista update you mentioned would be the difference? I'll probably try it & let everyone know. Anything's "possible," but mine wasn't a cheap, bottom of the heap unit. most decent, full functioned Canon cameras. 1st, I doubt there's a difference in compatibility of various software detecting my camera vs.
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