Wednesday, February 5, 2014

How to choose a digital camera that will have better lens quality?




maymylileu


Help...any one can give me the idea whether to buy digital camera of Nikon CoolPix Series or Canon PowerShot Series. Which brand bears a clearer and better lens. Besides, i don't understand the meaning of the CCD, (like: 1/2.3"CCD) .Anyone.....Pleeez?


Answer
Canon and Nikon both made their names as optics companies. Quality will be the same between the two and while some may match their lenses for quality, no one beats them. You can't go wrong with either one.

As for CCD, it's an acronym that stands for charge-coupled device. This is an analog imaging sensor that is also commonly used in video cameras. Look at an older video camera and you'll often see "CCD" printed on the side of the camera somewhere near or on the lens. When you see 1/2.3" CCD, this denotes the size of the CCD sensor in the camera. A 1/2.3" sensor measures roughly 6mm by 4.5mm...Not very large but adequate for most point-n-shoot cameras.

I want a compact digital camera. How do I choose in regards to lens quality, CCD quality, etc?




RWC


Main factors:
Lens Quality
Brand
Good CCD/CMOS
Low Purple Fringing
Low noise at high ISO



Answer
This is a very difficult question to answer, although after reading digital camera tech's answers, I would think twice about Sony and I would add reputation for good customer service to the list of how to choose a camera.

The only way for an individual to know the answer to most of these questions is to read reviews at several sites and ask friends. Many review sites have sample images that you can look at, including ISO tests. It's a good thing that you know about purple fringing as this is the evil among lower price digital cameras.

Some random thoughts...

Lens quality - You'll have to trust the reviews and start with the known brands. Nikon and Canon make good lenses. Schneider and Leitz are good lenses that are used on Kodak, Panasonic and Leica cameras.

Brand - The same names come up. Nikon, Canon, (even) Kodak, Olympus... I'd like to include Pentax, but it doesn't seem their film expertise has transferred over to digital yet, as they are quite conservative.

CCD/CMOS - Most are made by Sony. CMOS is Canon's. One thing that you CAN do is look for the sensor size. They are measured in a very arcane manner and their size is expressed in terms of inverse numbers. The larger the number on the bottom, the smaller the sensor. In point and shoot cameras, look for a 1/1.8 size as opposed to the more common 1/2.5. In general, a larger sensor will give better images.

Fringing and ISO noise - See reviews of the cameras that you are interested in after looking them over based on the first three items.

Here are some review sites:
http://www.dpreview.com
http://www.imaging-resource.com/
http://www.dcresource.com/
http://www.dcviews.com/
http://www.steves-digicams.com/
http://www.megapixel.net/html/reviews.php
http://www.letsgodigital.org/html/
http://bobatkins.com/photography/digital/ (esp. Canon)
http://www.kenrockwell.com/ (esp. Nikon)




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