Sony's line of digital Single-Lens Reflex (SLR) cameras included a few dozen different models, from the entry-level a290 to the professional a900. Sony's lenses are designed with all models in mind, and the Alpha 75-300 mm telephoto zoom lens is no exception. The 75-300 mm lens features a maximum aperture of f/4.5 to 5.6. It's designed for sports photography at a distance but is also a good portrait lens. It retails for $275, as of January 2011.
Specifications
The Sony Alpha 75-300 mm lens weighs in around 1 lb., 2 oz. It features an aperture range from f/4.5 to f/32. The filter diameter (the end of the lens) is 55 millimeters, allowing you to transfer filters from your standard 18-55 mm lens. The minimum focus for this lens is just short of 5 feet.
New Products
Sony's newest digital SLR cameras -- the a33 and a55, prosumer (professional-consumer) range cameras in the neighborhood of the Canon Digital Rebel and Nikon D80 -- are fully compatible with the Alpha telephoto zoom lens.
DSLRs
Other Sony DLSR cameras that are currently on the market are compatible with the Alpha 75-300 mm lens too. The entry-level a290 and a390 and the a580L (which is usually sold with an 18-55 mm wide-angle lens included) work with the 75-300 mm lens. In a slightly higher price range, the a580 is another Sony DSLR that handles the Alpha lens.
Professional DSLRs
Sony has two high-end, professional models that are currently on the market and compatible with the Alpha 75-300 mm lens: the a850 and the a900. Selling for $2000 and $2699 respectively (as of January 2011), these cameras accept all Sony digital camera lenses.
Translucent Cameras
Sony is the first camera company to release cameras with translucent mirrors, which allow for fast (and simultaneous) focusing and shooting using a phase-detection auto focus system. The a55 and a33 DSLR cameras both use translucent mirror technology to shoot up to 10 frames per second; both are compatible with the Alpha 75-300 mm telephoto lens.
Discontinued Cameras
Though Sony doesn't still sell or support the following models, all are compatible with the Alpha 75-300 mm lens. These models can be found used from camera stores or online: the a300x, a700, a230, a550, a500, a350, a380, a200 and the various special releases of these cameras (which were technically identical, but featured color plating).
Video
Sony's NEX Handycam uses interchangeable lenses much like a DSLR camera. The Alpha zoom lens is compatible with the NEX Handycam, which retails for $2000, as of January 2011.
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