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.
Close-up of hands inserting a SD card into a card reader. The memory that you buy for your company's camera or video recorder will influence the kinds of pictures and videos you can take. If you choose SanDisk CompactFlash memory cards, you will need to choose from the SanDisk Extreme and SanDisk Ultra lines. The Extreme line is newer than the Ultra line and takes advantage of advances in technology to deliver higher speeds and larger capacity suitable for even HD video.