Why do we need Battery grip.

Battery grip - no additional power for digital SLR cameras. Typically, a further platform, which is attached to the camera from below. Battery grip may be an additional shutter release button, which is necessary for comfortable shooting vertical (portrait) frames.  Battery grip often consists of two trim levels: the first - a niche for analog battery, and the second - a niche for 4-6 AA batteries. With no such contraptions, at least you can extend the life of your camera on a single charge twice, if you use it a second analog battery. And if you use Battery grip combined with six AA batteries, the number of frames to capture still increasing in a couple of times. Why is that? Because batteries for cameras often have a capacity of 1900-2500 mAh, using two batteries, you get capacity 3800-5000 mAh. And if you use AA batteries as a battery, the capacity of your camera can be increased to 10800-12000 mAh. But the most important thing when using AA batteries - this is something that we must not forget about proper storage and after shooting their best to remove the battery pack, as some of their own booster can defuse per night or worse if all batteries will flow. The use of additional power supply - it's not all the benefits of battery packs. They have the shutter button, which will be especially useful when shooting vertical pictures in full growth, especially in wedding photography. Battery grip equipped with the latest generation of wireless remote start system. Battery grip even simple amateur cameras have a shutter button for easy shooting vertical pictures. Will not have to twist the arm to slide on the floor covering to press a button treasured. Also nearby there is a button on / off the camera itself. First, to capture such a manner a little hard to get used to, but then you can not deny myself the pleasure to do more vertical photos. Amateur and semi-professional cameras, even with the optics of the same class, have a very low weight, that at one time a very difficult shot at short exposures, such as 1 / 30-1 / 60 sec. Imperceptible shake hands respond blurring the image. Fix such a device a bit difficult, but not so when there is a booster, seasoned "finger" batteries. Heavy machine is much easier to hold.