Digital Camera Zoom

Understanding Digital Camera Zoom Lenses

Executive Summary By Michael Huddleston

There are two types of zooms used with digital camera zoom :
optical and digital zoom

Optical Zoom

An optical zoom changes magnification by moving glass in the lens, changing the image falling on the sensor. Using an optical zoom maintains picture quality.

Zoom Ranges and 35mm Equivalents

Optical zoom lenses usually have a specification called “equivalent in 35mm.” This tells you the zoom range of the digital camera zoom compared to a 35mm film camera. Typical 35mm equivalent zoom ranges you will see listed are 35mm-70mm or 35mm-105mm.

28mm…..wide angle
35mm……slight wide angle
50mm…..normal perspective
70mm…..slight telephoto
105mm…..moderate telephoto
135mm…..strong telephoto
200mm+…..extreme telephoto So, a 35mm-105mm equivalent zoom lens changes from a slight wide angle to a moderate telephoto. A 28mm-200mm equivalent lens changes from a wide angle to an extreme telephoto.

A 35mm-105mm equivalent zoom is adequate for most users.

Optical Zoom as 2x, 3x, 5x…

A 28mm-105mm would be approximately a 4x zoom, and a 35mm-350mm would be a 10x zoom.

Digital Zoom

A digital zoom of digital camera zoom does not change, magnification.

Choosing Digital Zoom Or Optical Zoom

With many digital cameras you are sure to get both optical and digital zoom. Optical zoom works in something like the zoom on a 35-mm film camera. The optical zoom is updated, the quality of the images. Digital zoom operates differently. The reason the quality of the photograph was reduced, sometimes a lot.

A full-size image of an object with the digital zoom, but it is likely that this picture becomes a little bit too blurred i.e. the details are lost. Indeed, the function of the digital zoom camera might be better in this case with the digital zoom off if possible. So you can automatically or zoom out to suggest that the digital zoom is often an extension of the optics.

Digital zoom has its place. It can be used if the fate of your photo is the Internet. If your goal is to print the picture, then you are more to be at an advantage if you power off the zoom.

Camera Tripods

Camera Tripods

Executive Summary by David L Whittle

One of the causes of disappointing photos is camera shake.The result of camera shake is an image which is blurred or not sharp enough.The solution to this problem is to use a camera tripods.

Using a camera tripod is essential to create a steady platform for your camera. If you do not have a tripod you are effectively halving the number of picture-taking opportunities that you come across where an absolutely steady camera is necessary. A tripod is used when taking close-up,landscapes,low-light situations,slow shutter speeds,long exposures and panoramic pictures

If you are serious about photography a camera tripod is a must. Shopping for a tripod can be very confusing with all the number of tripods to choose from. Prices can vary quite a lot between the cheapest and the dearest tripods.

Good quality camera tripods will last a lifetime if well looked after, and are therefore cheaper in the long run.

If you are using the tripod out in the field then a tripod needs to be heavy and solid enough to stand weight, rougher treatment and external factors like wind and vibration. Also consider that there are ways to minimize shaking and vibration by leaning your weight on the tripod (if exposure less than 1 sec.), or hanging a heavy camera bag between the legs.

In each case you are away from the camera and will not contribute to camera shake.

Tripods - Why you really need them

Most people know that you need a tripod if you intend to make long exposure shots but this is by no means the only reason for using one.

All a tripod actually does is to provide a stable platform for your camera allowing you to make long exposures without the risk of camera shake spoiling your picture. The governing factor here is camera shake. Perhaps a word for the tripod's smaller cousin is required here. You have probably noticed that sports photographers doing long lens work usually have a monopod, rather than a tripod, attached to their cameras. If you don't have either of these, then you can use your camera's self timer. Even if your camera moves when the shutter is pressed, it will have settled down long before the photograph is taken. Some cameras have a short self timer option for precisely this purpose.

Some techniques can only be done using a camera tripods, for instance 360 degree panoramas. The weight of tripod you need is largely determined by the weight of your camera. If you use a Dslr and big lenses, you need a fairly sturdy one. If you do use a heavy camera then even more important than the weight of the camera tripod is the strength of the pan and tilt head locks. Fit the camera and tighten all the locks. In practice, the only rule you need to follow is never to move your camera tripods any great distance with a camera attached. The locks are designed for the tripod at rest.

The best way to use a camera tripod is to start by finding the camera position you want, either by eye or with the camera hand held. You then set up the camera tripods and tighten up all the locks, fit the camera and check the composition. If you have to slightly move the position, it's OK, as long as you hold on to both the camera and tripod when doing so. With cheaper camera tripods you sometimes find that tightening the lock actually moves the camera.
(by Colin Aiken)

Discount Digital Camera

Discount Digital Camera

Executive Summary By Matt Peters

Digital cameras don’t come cheap because of the numerous features involved that are lacking in the traditional manual camera. Discount digital cameras come in two kinds – brand-new and used. Though new cameras offer a wider range of features, a discount digital camera offers close to the same features though they can be a bit out of date. You can find discount digital camera from Discount Camera in the San Francisco Bay area.

Discount digital camera surfaced when digital cameras broke into the single-use trade. Consumers are predisposed to buy cheaper cameras due to tight budgets. Only avid photographers splurge on highly expensive cameras for better image quality.
Even choosing a discount digital camera is difficult. When choosing a discount digital camera, you have to check for cuts and scratches if it is used. Color sharpness is important in any digital camera.

Discount Digital Camera Bargains - Don't Get Burned

If you are looking for discount digital camera bargains, you can look online at wholesalers and online retail stores. Whether you want a point-and-shoot camera or a fancier, digital SLR camera, you will find one on the Internet. In many cases, you can find a bargain digital camera for $100-$200 below the manufactures suggested retail price. Just because you find discount digital camera bargains, it does not mean it is a bargain.

You can find bargains on cameras that are being sold on clearance, which is a great way to get a very nice camera. When you are looking for discount digital camera bargains, do not forget to compare the older models with the newer model cameras. In many cases, you can find an older camera that offers all the features and functions of some of the newer cameras. It is all a matter of preference when you are looking for bargains on digital cameras.
(By Chris Campbell)

Cheapest Digital Camera

Cheapest Digital Camera

Executive Summary By Chris Campbell

Not if you educate yourself, and know what your shopping for. It doesn't matter if it's digital cameras or birch bark pencil holders. If you follow a few simple steps.

Granted, digital cameras are a smidge more complicated then anything made of birch bark, there's still no reason to let them intimidate you. It helps if you have a friend that's good at this stuff to talk with, or if your really lucky a helpful salesperson.

Being able to compare prices from anywhere in the world will really stack the odds in your favor for finding the best prices. That doesn't necessarily mean you should purchase your next Canon SLR digital camera from Jim Bobs Digital Camera & Goats Emporium.

Cheapest Digital Camera - Best Possible Quality

Doesn't matter, if it's digital cameras, electric shavers, or goldfish. Not too much of a revelation, but that big bad tool is of course the internet. I've got this really fancy wood working router on my workbench, but hell if I know what to do with it. My point being, you've got Gods gift to consumers with the internet, so you really need to use it.

What with shipping charges, possible return shipping charges, and the ability for lazy sales folks to hide behind email address, buying online has the potential for disaster. What you can do online that you can't do in even the biggest of big box stores though, is compare products, features and prices until you-know-where freezes over.

Yes, it's true the internet will make you smarter . . . if your willing to use it.

EOS Digital Camera

EOS Digital Camera - Why Buy Canon EOS Digital Camera?

Executive Summary by Justin Zeilenga

The Canon EOS digital camera line comprises cameras that will meet your digital photography needs no matter your level of expertise. Professionals and novice photographers alike rave about the Canon digital cameras and the excitement about this line of products shows no signs of dimming.

Spanning the Canon EOS 1Ds Mark III Digital SLR Camera, Canon EOS 1D Mark III Digital SLR Camera, Canon EOS 5D Digital SLR Camera, Canon EOS 40D Digital SLR Camera, Canon EOS 30D Digital SLR Camera, Canon Digital Rebel XTi/XI/XSi, Canon EOS digital camera offer amazing quality, functionality and the latest technology all at great prices.

The Canon EOS digital camera range in features and prices greatly, leaving a choice for everyone.
For example, the Canon EOS Rebel XT features high quality imagery with 8 mega pixels for tremendous details in every single image captured. Canon EOS digital cameras are user friendly. From improved control over shutter speed and mechanisms to automated focus features, Canon never disappoints with its cameras.

Canon EOS digital cameras are extremely popular among professional and novice photographers not just for their quality and price, but also for their compatibility. Having a hard time choosing which Canon EOS digital camera to buy? Canon also offers a wide range of accessories and lenses which expand the functionality of each camera. When you own a Canon EOS digital camera, you can instantly become one of those people whose pictures everyone admires.

Rebel SLR EOS Digital Camera Series

Before owning a good digital camera I, of course, did a lot of research on the Internet and was impressed by the consistently high ratings from consumers that the Canon Rebel SLR Digital Camera series received. Amateur Photographers can quickly become expert with easy, enticing SLR functions.

Camera lenses must also be interchangeable, because this is the main feature of SLR Digital Camera, and high-speed AF (auto focus) must be achieved with every lens. Cameras also must be easy to operate. Canon Rebel SLR EOS digital Cameras are highly automated, so they bring highly satisfying results with everything left to the camera to control such as focus and exposure. A perfect example of this is the Quick Control Dial on most EOS camera bodies, which allows instant access to exposure compensation with the camera still at the user's eye. (By Walter David)