Most mainstream digital cameras offer five to eight megapixels of resolution, while those with 10 megapixels or greater offer optimal image quality and sharpness.
Camera resolution is expressed in megapixels (MP), a measure of how many pixels a camera image sensor has. One megapixel is equal to one million pixels.
Here, in order of quality, are the ten best digital cameras with 10 or more megapixels of resolution.
Introduced in late 2008, the Nikon D3x offers a full-frame CMOS image sensor, and 24.5 megapixels of resolution, the highest of any single-lens reflex (SLR) currently in production. Aimed mainly at pro photographers, the D3x also features 16-bit image processing architecture.
Tied with the Nikon D3x for resolution, the Sony A-900 features 24.6 megapixels, and accepts Memory Stick or Compact Flash memory cards. Like the Nikon and the Canon EOS 1Ds, it offers an eye-level viewfinder providing 100 percent coverage of the image frame.
Canon EOS 1Ds Mark III
Canon's 21.1 megapixel EOS 1Ds is also oriented toward pro photographers. Unlike the Nikon D3x, it does not have a live-view function that shows a live image in the camera's LCD display before the shutter button is pressed. The 1Ds is unique because it has a PC connection terminal permitting the camera to be controlled by computer.
Canon EOS 7D
Released in late 2009, Canon's 18 megapixel EOS 7D SLR uses a APS-C sized image sensor, making it the highest-resolution consumer-grade SLR available on the market. The 7D also features an advanced 19-point autofocus system that allows users to select a point of focus anywhere within the image frame.
In the middle of the pack is the The Pentax K-5, with16.3 megapixels. It also has a sensitivity range of 100 -- 12800 ISO, putting it on par with Nikon's D3x sibling, the D3s. The K-5 also caters to amateur videographers by incorporating a high-definition movie mode.
The 14.4 megapixel SD15 claims to have the world's first full-color image sensor, the Foveon X3. It's also capable of shooting 21 frames per second in the RAW image format, making it one of the fastest digital SLR cameras.
The Olympus E-30 is the successor to Olympus` E-Volt line of cameras. Besides two memory card slots, it has a swiveling LCD display. It also has a unique Art Filters feature that lets users create artistic effects directly in the camera.
Panasonic Lumix DMC-GH1
Panasonic's current entry in its Lumix series of cameras is the 12.1 megapixel DMC-GH1. It provides several video recording modes, a Dolby Digital stereo microphone, face recognition, face detection autofocus and auto exposure modes.
Nikon's consumer-oriented D3000 has 10.1 megapixels and the ability to change lenses. Unlike a number of digital SLR's currently on the market, the D3000 uses a CCD image sensor. The D3000 offers an in-camera assistance mode to help new users utilize professional techniques.
Sony Alpha DSLR-A330
Hitting the market in mid-2009, the 10.2 megapixel A330 features a tilting LCD display, and internal image stabilization. It also includes Graphic Display, a feature that shows photographers how shutter speed and aperture affect their results.
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