Product Description:
We use Premium, Japanese, Grade A battery cells. Unlike Nickel-Cadmium (Ni-Cad) batteries, Lithium Ion batteries don't have a memory effect which shortens their capacity. They can be partially charged and/or discharged without worry of shortened battery life. Guaranteed to work with the following Cameras: Nikon Coolpix S550, and PENTAX Optio M50. 1 Year Warranty: We will replace this or any other item that you purchase from us for 1 year from the date your order is processed if it fails under normal wear or is defective. We always sell new high quality items and we are willing to back them up! The POWWER / SterlingTek name, images, and contents of this SterlingTek listing are protected by trademarks and copyrights. Copyright © 2008 SterlingTek. Quality Products @ Great Prices .... Guaranteed. SterlingTek!!! Serving You Since 1999.
Product Details
- Feature:
- Our Pentax D-Li78 battery equiv. is a high performance Lithium Ion battery with no memory effect.
- And allows a longer run time than the Pentax original battery.
- Sterlingtek D-Li78: 900mAh 3.7V Ultra high power capacity for powerful image taking.
- Did You Know? The mAh rating of a battery indicates how "big the gas tank" of a battery is.
- The higher the mAh rating is the more power that a battery will store & last longer.
- Brand: POWWER
- EAN: 0185894005444
- Label: Sterling Publications
- Manufacturer: Sterling Publications
- MPN: D-li78 -1stk
- PackageQuantity: 1
- ProductGroup: CE
- ProductTypeName: CONSUMER_ELECTRONICS
- Publisher: Sterling Publications
- Studio: Sterling Publications
- UPC: 185894005444
Electronics Articles 
Professional video camera
A Professional video camera (often called a Television camera even though the use has spread) is a high-end device for recording electronic moving images (as opposed to a movie camera, that records the images on film). Originally developed for use in television studios, they are now commonly used for corporate and educational videos, music videos, direct-to-video movies, etc.
There are two types of professional video cameras: High end portable, recording cameras (essentially, high-end camcorders) used for ENG and EFP image acquisition, and studio cameras which lack the recording capability of a camcorder, and are often fixed on studio pedestals. Portable professional cameras are generally much larger than consumer cameras and are designed to be carried on the shoulder.
Technology
It is common for professional cameras to split the incoming light into the three primary colors that humans are able to see, feeding each color into a separate pickup tube (in older cameras) or charge ...
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 ...
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