Sony SAL 70-400mm f/4-5.6 G SSM ZA Lens

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It's Heavy At Nearly 4 lbs

Sony Full Frame Lens Sony 70-400mm Lens - Left AngleA 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 bad boy.

Sep 4, 2011

Superzoom
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 18270 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 28200 mm has a 75 to 12.3 angle of view, a 28300 mm (or an 18200 mm for an APS DSLR) has an 11.1x 75 to 8.2

Features

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.

Focus Hold
Three Focus Hold buttons are provided, which lock the focus at the press of a button.

Focus-Range Limit
Two focus-range limit settings reduce auto-focusing time.

Circular Aperture
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.

Tripod Collar
The removable tripod collar rotates 360 so that the camera and lens can be orientated in any position when mounted from above or below.

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Specifications
 
Overview
Lens styleZoom lens  
Max Format Size 35mm FF  
Lens focal length70 400 mm  
Stabilization type No  
Camera mount Sony Alpha  
Angle of view Not Specified by Manufacturer  
Aperture
Largest aperture opening F4.0 - F5.6  
Smallest aperture opening F22.0 - F32.0  
Includes aperture ring No  
Total diaphragm blades 9  
Aperture annotations circular aperture  
Optics
Total Elements 18  
Number of Groups 12  
Focusing
Minimum focus distance 1.50 m (59.06")  
Maximum magnification ratio 0.27 x  
Autofocus type Yes  
Full time manual focus Yes  
Focusing method Internal  
Lens distance scale Yes  
Depth of field scale Yes  
Physical
Overall weight1490 g (3.28 lb)  
Lens diameter 95 mm (3.72")  
Overall length 196 mm (7.72")  
Sealing No  
class="label">Lens ColorBlack and silver  
Zooming method Rotary (extending)  
Filter thread size 77 mm  
Lens hood included Yes  
Lens hood code petal shape hood  
Tripod collar included Yes

Lens Includes

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

Accessories

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See also

Sony Camera Reviewed by Gene Wright on . Rating: 5