Digital Camera Dimensions

When choosing digital cameras, you’ll need to scrutinize the size. If you’ll be carrying it around, getting a portable one will be essential.

Digital Camera Dimensions: Canon

The PowerShot SD770 IS measures 3.39 x 2.13 x 0.80” and comes with 10.0 megapixels and a zoom of 3. PowerShot SD750 measures 3.61 x 2.24 x 0.77” and has a zoom of 3.0. The megapixel number 7.1. The PowerShot SD1100 IS’s dimensions are 3.42 x 2.16 x 0.87” (zoom, 4.0, megapixels 8.0).
The PowerShot SD880 IS measures 3.69 x 2.24 x 0.93, with a zoom of 4.0 and 10.0 megapixels. The dimensions of the PowerShot SD850 IS are 3.56 x 2.22 x 1.04”. It can zoom 4.0 and has 8.0 megapixels. The PowerShot SD870 IS’s dimensions are 3.65 x 2.32 x 1.02” with 8.0 megapixels anda zoom of 4.0.

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Digital camera connectivity explained

USB Cables - USB 2.0 Cables, mini USB Connector Cables, Extension Cables and adapters
USB (Universal Serial Bus) is the "plug & Play" interconnection standard used for both PC's and Macs. All of our USB cables are fully USB 2.0 compliant for 480Mbps throughput and are backwards compatible with all USB 1.x speeds for 12Mb/s and 1.5Mb/s applications.

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Digital camera flash modes

Many digital cameras have several flash modes from which to choose. A built-in flash is small and not very powerful so make sure to stay within the specified flash range for the focal length used.

Digital camera flash modes

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Exposure modes

Exposure is the amount of light which falls upon the sensor of a digital camera. Shutter speed and aperture are adjusted to achieve optimal exposure of a scene. Most digital cameras offer a variety of exposure modes — from fully-automatic to semi-automatic to full manual control. Scene modes have factory optimized settings for different subjects and scenes.

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Digital Camera ISO

ISO is similar to film speed on film cameras. Unlike aperture and shutter speed, ISO doesn't control how much light enters the camera, but instead controls how sensitive the camera is to that light. The lower the ISO, the less sensitive the camera is. In other words, a lower ISO will require more light to properly expose a picture than a higher ISO.

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Digital Camera Storage/Memory Cards

Digital camera storage/memory cards are digital camera film, that's where the digital camera stores photos you take. The advantage is of course you can use them over and over again and a lot more photos can be stored (depending of course on the capacity of the card). A lot of different kinds of digital camera memory cards are available. Unfortunately some memory cards only work with certain brands so you should really read this article so you don't make a mistake when buying memory cards as it all can be really confusing.

Compact Flash Cards

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Digital Camera Zoom

Optical vs. Digital Zoom

With zoom you can switch between close up and a faraway point. There is a very important thing to think about when buying a camera and that is the difference between optical and digital zoom.

Optical zoom measures the ability of the camera's lens and other parts to capture more light, and more detail, from a particular faraway point. That means that you get better-quality pictures taken from a distance while digital zoom works by capturing only the central portion of the entire image received by the sensor. It basically means that the digital zoom is really only a cropping tool, since it cuts off the parts of the image that would be out of the field of view if a longer focal length lens had been used.

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Optical vs. Digital Zoom

Zoom on a camera can add to the pleasure of digital photography. However, many consumers are confused between optical and digital zoom. An understanding of the difference between the two zooms will help you choose the digital camera that is right for you.
Most people who have used a 35mm camera or an APS camera are aware of only optical zoom. Optical zoom uses the optics (lens) of the camera to bring the subject closer. Digital zoom is an invention of digital video cameras. It is not uncommon to see digital videocams with 300x digital zoom.

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Digital Camera Resolution

A photograph, whether viewed on the screen or printed, is composed of tiny dots (also called pixels). The more of these dots that can fit in a one inch space, the tinier the dots and the sharper the image. Assume you take an image at 100 dpi that is one square inch in size. It is composed of 100 X 100 pixels. It may look good at one square inch.Now blow it up four times to four square inches. Since it still contains the same 100 X 100 dots, it is now only 25 dots per inch. It will now look grainy. Digital camera resolution is a very important factor to take into accountwhen deciding what camera to buy.

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Digital Camera Specifications Explained

 

If you are considering buying a digital camera it is ultimately important to know what you are buying.  This guide will explain all you need to know when it comes to understanding digital camera jargon.

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