Canon ACK-700 AC Adapter for S1 IS, S30, S40, S45 and S50

Rating:
Summary: Necessary if you connect to a computer via USB
Review: If you plan on connecting the camera to a computer via a USB connection, then this product is probably a must buy, else you'll drain the batteries a lot. However, if you have some type of Compactflash peripheral (I have one on my HP 1315 printer), then you can copy directly from the card to your PC. Hence, no need to power the camera. If this is your situation, I'd just buy an extra battery, and possible the 12v adapter so you can charge the battery in the car. Unfortunately, the latter is not sold at amazon.com, at least not at the time of this writing...

Rating:
Summary: Necessary if you connect to a computer via USB
Review: If you plan on connecting the camera to a computer via a USB connection, then this product is probably a must buy, else you'll drain the batteries a lot. However, if you have some type of Compactflash peripheral (I have one on my HP 1315 printer), then you can copy directly from the card to your PC. Hence, no need to power the camera. If this is your situation, I'd just buy an extra battery, and possible the 12v adapter so you can charge the battery in the car. Unfortunately, the latter is not sold at amazon.com, at least not at the time of this writing...

Rating:
Summary: junk. it does nothing for you
Review: looking at canon's website and seeing this charger available on the accessories matrix, one would assume that it would power the camera. it does, kinda, the power goes into the battery compartment. so you can not chage a battery with this device. it only powers the camera if you are using the usb connector. it is practically useless.