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Description for canon Battery :
:Replacement for CANON : Work with CANON Camcorder .
Buy this item together with the CANON battery charger, we can give you an even lower price ! Do you want to get more helps ? Please email or telephone to us!
All our batteries are 100% Compatible with original battery, and we guarantee all our products for 1 year.
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Battery knowledge(CANON )
When buying digital cameras, concentrate on optical zoom, not digital zoom.
Although many salespeople would disagree, when choosing a digital camera to purchase, I would completely ignore advertised digital
zoom magnifications and only look at cameras' optical zooms. Digital zooming performs an interpolation, or computer-based
'guesswork', of an image to try to increase the perceived zoom distance. These can result in "fuzzy" images or those with less
than optimal clarity, especially if you blow them up into 8x10 or larger photos. However, optical zoom provides for
a true zoom-in
or zoom-out on your subject.
If you want an example of what a photograph may look like when taken with a digital zoom, take a photograph into a piece of
photo-editing software and increase its size by 100% or 200%. Although the picture will look bigger on screen, you will start to
see dots or imperfections in the image. That's what happens with digital zoom.
Higher optical zoom cameras can allow you to take a greater variety of pictures, but they do tend to cost more money,
which is why lower-priced cameras tend to advertise their digital zoom capabilities a lot more. However, for many photographers,
the enhanced image quality is well worth the higher price.
Smart Battery
In most systems today, the user never knows how much charge is left in the battery. While the user
may translate this to the simple question "How long will this device continue to operate?"; the
answer is complex. Many products that attempt to answer the question use the system's hardware
to account for the battery's charge state. This approach is destined to fail when different batteries
are used because the battery's characteristics and history are associated with the system, not the
battery. The Smart Battery fixes this problem by maintaining its own information, thus allowing
for a mixture of batteries (different chemistries and/or charge states) to be used in a device. The
user will now have access to accurate information because each Smart Battery will accurately
report its own characteristics.
A good example is a video camcorder where a user may have multiple batteries each with different
capacities as well as different charge states. Even with an accurate state-of-charge indication, a
full one AH (ampere hour) battery is not equivalent to a full 1.5 AH battery. Though they both
can power the same camcorder, what the user wants to know is whether or not either of these
batteries has adequate capacity to record a one hour event. The Smart Battery provides the user
Consider another two items before buying a new digital camera
Media Type : There are lots of media types available for cameras, such as CompactFlash, SecureMedia, etc. Because of my previous
purchases of CompactFlash cards that I used in older cameras, if upgrading, I would not want to purchase a camera that used a
different type of memory unless its other features far outweighed those of competing cameras. Memory prices are going down, but
cards are still not cheap and I don't want to 'throw away' this media investment when upgrading.
Battery Type : If you currently use rechargeable batteries, factor into your purchasing decision whether or not your 'dream' camera supports the same types of batteries. I own six or seven sets of AA NiMH rechargeable batteries and would be very weary of purchasing a camera that had its own custom battery type. Of course, if the digital camera offered double the megapixels, a wider zoom lens, and better quality photos, I might reconsider (grin).
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