A battery grip will double the battery capacity, but sometimes that won't be enough either.
In such a case an AC to DC coupler is the most efficient solution.
I had purchased the specific ACK-E2 compatible DC coupler described in this article quit a long time ago in order to perform some time laps sessions, capturing the activity in my aquariums during a day cycle. That helped a lot in the study of the behavior of the various species of creatures and plants, especially during my absence, as my presence caused quite a distraction.
However, the presentation of this specific DC coupler is meant for illustration only, in order to convey the idea and not to promote the item itself, as it is a generic after market product of which you may find numerous variations on line.
For those unfamiliar with the concept, the DC coupler replaces the camera battery and enables the camera to draw power directly from an AC power source via an AC adapter/power supply.
The ACK-E2 Coupler
The ACK-E2 DC coupler is compatible with Canon EOS D30, D60, 300D (Digital Rebel), 5D, 10D, 20D, 30D, 40D and 50D or simply with all EOS cameras utilizing a BP-511A battery pack.
Using with the camera
|Since the DC coupler replaces the camera battery pack, all it needs to be done is to remove the original battery pack - the BP-511A in this case - and insert the DC coupler in the battery slot of the camera as with the EOS 50D pictured above.|
Very low price compared to original Canon product.
Not compatible for operation with battery grips due to cable positioning.
Although there is a limitation of the presented DC coupler for use with a Battery Grip, I wouldn't mind too much about it since the use of a DC coupler voids the need of the extra capacity supplied by a battery grip. Further, in time laps or long exposures the use of a tripod and remote cable are imperative so I wouldn't miss the extra buttons of the battery grip either.
On the other hand if the use of the battery grip is desirable for continues shooting in portrait orientation, then you should seek for a DC coupler compatible with both.
I have used the ACK-E2 compatible DC coupler for long sessions and for a long time without any problems.
Considering also the fact that the original product is most probably discontinued being out of stock for quite some time now, for users of older EOS cameras that would like a continues power supply, the choice of a compatible solution seems logical.
I hope you found the reference useful, thank you for viewing.
All Photos & Photosynths: © 2012-2013 S.C.Vlachos
Price and Availability:
Prices for ACK-E2 compatible DC Couplers vary from as low as US $ 6.90 to as much as $ 19.90
However higher prices do not always guaranty better compatibility and/or quality as some of the items may be old stock with lower demand nowadays.
My suggestion is to check well for AC adapter quality before committing to buy.
ACK-E2 compatible DC Coupler is available from Amazon.com
Please consider using above link(s) to make a purchase and help support this site.
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