Do you want some infoormation on the Canon BG-E5 Battery Grip?
This accessory fits three Canon cameras, the Canon 450D, 500D, and the 1000D. These are also know as the XS, the T1i, and the Canon Rebel EOS XSi.
The LP-E5 batteries fit the BG-E5 BGM-E5L magazine unless you are using 6 AA batteries which then requires the BGM-E5A magazine.
Both of these BG-E5 magazines ( see photo below) slide into the end of the grip, just like with the BG-E11 and BG-E8.
Despite the name "battery grip" the biggest appeal for most photographers for owning this accessory is the vertical controls and the feel of the grip.
Yes, it's true that doubling the battery power is a valuable feature as well. This is particularly true if you shoot a lot of long events like a wedding or a sport league.
I've never minded doing a quick change of a single battery in any of my Canon cameras, but I don't shoot weddings anymore.
There is definitely a peace of mind you get when you know you've got a ton of battery power and a ton of memory. The second battery is already installed.
Advantages of a Battery Grip
Doubled shooting time
Vertical Shutter and camera controls
Balanced feel with larger lenses attached
More room for better hand grip
Disadvantages of a Battery Grip
Extra weight to carry around
Extra size to fit in your camera bag
Added cost of purchasing one
More equipment that could break down
Here is a quick comparison of the 3 cameras that the BG-E5 fits:
The Canon Rebel XS (1000D, Kiss F) -released in 2008
At the time of it's release the Rebel XS was the lightest EOS camera and was still loaded with plenty of technology.
Canon Rebel XSi (450D, Kiss X2) -released in 2008
Canon Rebel T1i ( 500D, Kiss X3) -released in 2009
As a side note, the Canon BG-E5 battery grip currently (Feb 2013) has a 5-star rating by customers on amazon. I am an amazon Geek (in addition to being a Canon Camera Geek) and I don't ever remember seeing a product with as many positive reviews and having no 1 or 2 star ratings.
You can buy a Canon BG-E5 or a much cheaper alternative at about 1/3 the cost. To save you some time, I've given you two links below.
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