Sony NEX-3 Review
The CMOS is much larger than the Micro Four Thirds sensor, leading to some major benefits: maximum image size is 4592×3056 pixels, or 39×26cm in print-speak. Note that a larger sensor leads to a more narrow depth of field, closer to that of a 35mm SLR.
It has two major and highly appealing features from the earlier, compact DSC-HX5V: an amazing panorama feature that can be used with the camera horizontally or vertically (you’ll love the rapid fire of the shutter as it shoots the sections!); high burst rate.
The Sony NEX-5 has one even better spec: AVCVHD movie shooting in Full HD: 1920×1080 pixels
Several hot features were brought over from recent Alphas and Cyber-shot digital cameras, including Sweep Panorama, Auto High-Dynamic Range shooting, Handheld Twilight, and Anti-motion-blur modes, each of which strategically combine and align several images into one seamless one. It’s pretty impressive stuff. As if that weren’t enough, Sony’s also announcing an upcoming upgrade (even before the cameras ship!) that will enable a special 3D Sweep Panorama mode that will work with several as-yet unannounced Bravia TV sets coming in July 2010.
Both the Sony NEX-5 and NEX-3 sport a wide, 3-inch LCD with 921,000-dot resolution. The surprise is that the super-slim LCD tilts up 80 degrees and down 45 degrees for easy viewing. With TruBlack technology borrowed from Sony’s picture frames, shooting in or out of doors is a pretty good experience.
Though by name the new cameras are Alphas, they no longer use the Alpha mount; instead Sony has christened a new E-mount, for which two lenses will ship right away, both as kit lenses. The first is a fairly standard 18-55mm f/3.5-6.3 lens with Optical SteadyShot, and the second is a 16mm f/2.8 pancake prime lens. Both have a beautiful aluminum barrel in brushed gunmetal gray.
An adapter is available for mounting Alpha lenses, but autofocus will be disabled with the NEX cameras. Two converters will also ship for use with the 16mm lens: an Ultra Wide Converter with a 12mm equivalent view, and a Fisheye Converter.
Finally, an 18-200mm f/3.5-6.3 OSS lens is planned for shipment some time this year.
Both the Sony NEX-5 and NEX-3 accept both Memory Stick Pro-HD Duo and SD, SDHC, and SDXC media.
Sensor. The Sony NEX-3 and NEX-5 have the company’s third generation Exmor sensor. It is an APS-C sized HD-CMOS sensor that Sony says is 60% larger than a Four Thirds sensor, and 13 times larger than a typical video camera sensor, so they expect performance gains in both areas.
Dust. The Sony NEX cameras have a dust abatement and removal system, where they’ve included a charge-protection coating on the low-pass filter, and they also vibrate the low pass filter to shake dust free.
Processor. Sony doesn’t say much about the new Bionz processor beyond that it’s the third generation of the chip. Looking at the images, it could be a big part of what’s improved their image quality so much.
Autofocus and metering. The Sony NEX-3 uses contrast-detect autofocus only. It has two autofocus modes AF-S for single and AF-C for continuous focusing. There are three autofocus area modes, including Center, Multi, and Flexible Area modes. You can also choose full Autofocus, DMF, which allows you to adjust focus after the autofocus operation, and Manual Focus. Focus is fast and fairly accurate. See the Shooter’s Report or Performance tab for more.
The Sony NEX-3 has the option of Spot, Center-weighted, and Multi-area metering.
Optics. Sony’s new lenses are designed to respond more quickly than conventional SLR lenses can, with the express purpose of enabling autofocus while shooting video. Most SLRs either disable autofocus while capturing video, or else they essentially ruin the bit of the video where you’re focusing because of the lens motor noise and the excessive focus and exposure changes required.
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