Sony 55-300 mm F4.5-5.6 SAM
| From flattering portraits to wildlife and extreme sports: every subject's covered with the new SAL55300 telephoto zoom lens from Sony. Optimised for all "Alpha" A-mount camera models with APS-C sensors, the compact, stylishly designed interchangeable lens brings the action closer at a compelling price for every photographer. A versatile 5.5x magnification range covers focal lengths from 55mm to 300mm. At maximum zoom, this represents 450mm super-telephoto (as 35mm equivalent): plenty of power to capture the grace of animals in the wild or nail-biting track-side action. The whisper-quiet Smooth Autofocus Motor (SAM) makes an ideal partner for the high-speed AF tracking capabilities of cameras with Translucent Mirror Technology. Even when your subject's moving swiftly, you'll be rewarded by frame after frame of crisply-focused images and Full HD video. The advanced optical design of the SAL55300 gets the best from the high pixel counts of today's high-resolution image sensors. Featured on premium Sony G Lens models, an ED (Extra-Low Dispersion) glass element reduces colour aberrations for improved image quality at medium to long focal lengths. An impressive MTF (Modulation Transfer Function) performance assures flawless resolution of the finest details. The new SAL55300A-mount interchangeable lens for A-mount cameras by Sony is available since mid-September 2012. Read our full Sony 55-300 mm review. |
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Unwanted correction 3rd party lenses?
| Modern SLRs can correct lens aberrations such as chromatic aberration, vignetting and distortion. What can be corrected, and what choices the camera user can make, varies by camera brand. The Nikon D3200 corrects jpg files automatically for chromatic aberration without offering a choice to the camera owner. The Canon 650D corrects also for chromatic aberration in jpg files, but the camera owner must first selsect this option in the camera menu. Typically, only JPEG files are corrected for lens aberrations and RAW files remain unchanged. But the RAW files from Panasonic cameras are first corrected before the user gets to see his picture in Lightroom or Photoshop. In order to perform the lens correction properly, the camera must know which lens is used. And that is not as straight forward as you wish! |
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Canon 5D MK3 sample images
Yesterday Canon showed the Canon 5D MK3 at a press conference. The most important features of the Canon 5D MK3 are: 22 megapixel full frame sensor, 61 points AF, 6 fps, ISO 100-25.600, 8.11cm (3.2-inch) 1,040,000-dot screen, 14-bit DIGIC 5+ processor and full-HD video with manual control. They gave us an USB stick with a few Canon 5D MK3 images on it. We include a few crops of these images in this article, to illustrate the high image quality of the Canon 5D MK3 high ISO sample images. On the Internet there are several Canon 5D MK3 previews. We'll give you a table with Canon 5D MK3 previews. |
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Canon 650D
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For some time there were rumors on the internet about the Canon 650D. But the basic question was: "Does Canon skip the mirror?" and a minor question was: "How many pixels does the sensor have?" But right now we know much about the new Canon 650D. Initially it seems no more than a warmed-up Canon 600D. After all, both cameras use an 18 MP image sensor and on the outside you can't see much difference. The difference between the Canon 650D and the Canon 600D, however, is much larger than the difference between the Canon 600D and the Canon 550D. |
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