Customer Reviews 
Canon CA-PS700 Compact Power Adaptor
2010-03-16It is always safer to power your camera with a plug-in power supply when transferring images, than to use batteries. Battery voltage is always dropping, and you don't know, at what point the voltage is low enough to corrupt your images. This is not an expensive product, and provides me with peace of mind. I also feel better using a genuine Canon Power Adaptor, plus the price at amazon.com is much lower than at the Canon Web Store.
AC Adapter for Canon Digital Camera
2010-02-12An awesome way to save on the battery life while reviewing pictures either on the camera, computer, or TV.
Good quality
2010-02-01I did several researches and decided to go with the OEM product to ensure there is no hidden electrical problem with the camera that I invested. This is a great adapter as I did quite a bit of picture shooting in door that I can do lots of trials without changing batteries. I received the adapter in short time after I placed order. Good quality product!
Better priced alternatives
2009-12-22If you carefully search (via Google) you can find a "7.4V 2A CA-PS700" for your Canon camera for $8.95 with free shipping. It is identical to the Canon labeled product. I generally buy from Amazon, but Canon's price is simply too high for this item. I have purchased the item and it works great for 20% of the cost of the identical Canon adapter.
Canon Power adapter
2009-08-27
The power adapter works as advertised to save battery when reviewing pictures and transferring images to a computer.
Electronics Articles
Camera basics: shutter-speed, aperture and ISO
In this article, I’ll introduce you to the basic elements that you can use to control exposure in your shooting. If you have a digital SLR, there will be a way to set all of these controls on your camera, but since they differ between manufacturers and models, you’ll need to refer to your camera’s manual to find out exactly how to change them.
All cameras, whether an ancient film camera, or a more modern digital, work in pretty much the same way. Photographs are taken by letting light fall onto a light-sensitive medium, which records the image. Traditionally, this has been film, but more recently, it tends to be a digital sensor. The more light that falls onto the film or sensor, the lighter the image.
Put simply, a camera consists of a light-tight box that stores a light-sensitive device (either a film or a digital sensor), a lens that magnifies and focuses the image onto that light-sensitive device through a hole in the box (called the aperture) , and a shutter that opens ...
Digital cameras are good for the environment
As we consider the digital camera revolution that has taken place over the last decade, most people think about it in terms of enhanced benefits for consumers. We can take a lot more pictures at much lower cost with digital cameras versus film cameras. We can also more easily manipulate and share those photos since they're all in the digital realm.
But one thing many people don't think about actually deserves mention as potentially the most profound effect of the digital camera revolution: how digital cameras greatly reduce the destructive impact on the environment compared to film cameras.
At first, you might think, "How can that be? My film camera didn't harm the environment!" Even though it wasn't your camera that harmed the environment, your film processing did indeed harm it. Any time you take your pictures to a photo processing center, that film is run through batches of chemicals. These chemicals are environmental hazards, and once they are used to process film, those chem ...
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