It's Heavy At Nearly 4 lbs
huge 5.7x ultra super telephoto lens, especially created for Sony Alpha SLR cameras. When mounted on a Sony APS-C image sensor Alpha DSLRs, this big zoom lens reaches an extraordinary 105-600mm equivalent focal length. As a member of the Sony G series of highest lens quality, the SAL 70-400mmG is engineered to deliver exceptionally crisp performance across its big focal length extent, while it is well-matched for action, sports, or wildlife imaging.
This lens contains high-speed SuperSonic-Wave Motor (SSM) for AF speed and
accuracy, plus there are focus-mode/range switches plus three buttons to hold focus and deliver enhanced
usability. And when mounted on the Alpha 900 Sony SLR camera, the autofocus hold buttons may be customized to set the smart preview function in motion.
There are times when the Bokeh is not real smooth at the far end. The SSM quickly uses up the battery. Did I mention it's heavy at nearly 4 lbs. Add the weight of your camera to this and you won't be able steady your camera for very long! I'd advise bringing a monopod along when shooting with this
Sep 4, 2011
The term hyperzoom or superzoom is used to promote photographic zoom lenses with unconventionally large focal length factors, typically more than 4× and ranging up to 15×, e.g., 35 mm to 350 mm. The largest ratio for digital SLR cameras is held by the Tamron 18–270 mm, giving 15×. Some Digital Camera have even larger zoom ratios up to 35×. For movie and television use, Panavision holds the record with their 300X HD Lens.
While superzoom lenses have improved greatly in recent years, they still have a number of drawbacks in comparison with shorter-range zooms and prime lenses. Most notable is the much increased likelihood of significant distortions of the image at both extreme ends of the range. Other potential problems include smaller maximum aperture and poorer autofocus performance
Following is a list of superzoom lenses, used for 135 format in SLRs or for APS format in DSLRs. The minimal factor used here is 5×
or more. A 28–200 mm has a 75° to 12.3° angle of view, a 28–300 mm (or an 18–200 mm for an APS DSLR) has
an 11.1x 75° to 8.2°
Alternative Superzoom Lenses
SSM (Super Sonic wave Motor)
A built-in lens motor for faster automatic focusing with high torque at low speed, quick start/stop response, and quiet, smooth operation.
ED (Extra-low Dispersion) Glass
Two precision ED Glass lenses correct chromatic aberrations and deliver visually accurate results even at full telephoto zoom extension.
Three Focus Hold buttons are provided, which lock the focus at the press of a button.
Two focus-range limit settings reduce auto-focusing time.
Because the aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.
The removable tripod collar rotates 360° so that the camera and lens can be orientated in any position when mounted from above or below.
• Sony SAL-70400G 70-400mm f/4-5.6 G SSM Autofocus Lens for Alpha & Minolta Maxxum Series
• Front & Rear Lens Caps
• Lens Hood
• Lens Case
• 1-Year Warranty