WattUp combats this problem with a type of beam-forming technology. That Bluetooth connection is used to focus a tight cone of electromagnetic waves on the target, and it can even track the device and recalibrate as needed. A standard Qi wireless charger is about 90% efficient, but Energous claims it can hit 70% at much greater distances.
Flash memory cards for digital cameras are now absurdly cheap. A 64GB SD card can be bought online for around Â£30. Thatâs enough space to store 5,000 raw files produced by a typical DSLR â or upwards of 30,000 JPEGs. These cut-price cards come with a caveat, though.lash memory cards for digital cameras are now absurdly cheap. A 64GB SD card can be bought online for around Â£30. Thatâs enough space to store 5,000 raw files produced by a typical DSLR â or upwards of 30,000 JPEGs. These cut-price cards come with a caveat, though.
You probably have the wrong SD card or it needs to be reformatted. You can't record HD video on your DSLR without the right SD card. Whichever brand you chose, Transcend, SanDisk, Lexar, or any other, no matter the brand you need to pay attention to its speed. For HD video with a DSLR you need class 6 or higher card.I like to use class 10 cards as they seem to be the best balance between price and speed. But you can record video on your DSLR camera with a card as low as class 6.ou probably have the wrong SD card or it needs to be reformatted. You can't record HD video on your DSLR without the right SD card. Whichever brand you chose, Transcend, SanDisk, Lexar, or any other, no matter the brand you need to pay attention to its speed. For HD video with a DSLR you need class 6 or higher card.