Sony SLT-A57M Specifications - Page 22
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Telephoto zoom
70–300mm F4.5–5.6 G SSM SAL70300G
ED glass
At 70 mm
At 300 mm
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100
80
80
60
60
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12
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Distance from center of image (mm)
Distance from center of image (mm)
Max. aperture
F8 aperture
Spatial frequency
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T
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10 line pairs/mm
30 line pairs/mm
R: Radial values T: Tangential values
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A mode, 1/400 sec., F13, ISO 400, Auto white balance; Photo: Mark Tiller
One ED glass element contributes to minimal aberration
Outstanding sharpness and contrast throughout the zoom range
SSM (Super Sonic wave Motor) for fast, quiet autofocus operation
Circular aperture for attractive defocusing
Focus hold and focus range switches offer precision focusing control
The SAL70300G is the smallest and lightest zoom in the current G Lens series,
offering an appealing combination of extended zoom range and handling,
plus image quality that will satisfy the most demanding photo enthusiast or
pro. An ED lens element collaborates with an advanced optical path design
to achieve exceptionally low aberration right out to the maximum 300mm
focal length, so that your telephoto images benefit from impressive clarity
and depth. 300mm is generally considered to be the point at which the
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"medium" telephoto range ends and the "super" telephoto range begins.
Long focal lengths like this require careful handling to prevent camera shake,
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but SteadyShot INSIDE™ image stabilization featured in a series bodies
will help you capture clear, blur-free images in a wider range of handheld
shooting situations than would normally be possible.
• Weight (approx): 760 g
• Dimensions (Dia. x L): 82.5 x 135.5 mm
• Max. magnification ratio: 0.25x
• Tripod mount supplied
Continuous Priority AE, 1/1250 sec., F5.6, -0.7 EV, ISO 100, Daylight white balance (+1); Photo: Goh Fujimaki
Super telephoto zoom
70–400mm F4–5.6 G SSM SAL70400G
Two ED glass elements effectively suppress aberration
Outstanding sharpness and contrast throughout the zoom range
SSM (Super Sonic wave Motor) for fast, quiet autofocus operation
Circular aperture for attractive defocusing
Focus hold and focus range switches offer precision focusing control
ED glass
At 70 mm
At 400 mm
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Covering an extremely wide telephoto range with ample brightness, this
award-winning* lens can, for example, take you from an elegant 70mm
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portrait to a stunning 400mm wildlife shot in an instant without having to
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change lenses and potentially miss a great shot. This is an extraordinarily
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wide zoom range for a lens in this class, but range isn't its only feature.
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Being a high-end G Lens with a precision optical path that includes two
ED glass elements, you can be sure that it will deliver excellent sharpness
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4
8
12
16
20
0
4
8
12
16
20
Distance from center of image (mm)
Distance from center of image (mm)
and contrast right out to the edges of the image at all focal lengths.
And although long telephoto shots usually require a very steady hand
Max. aperture
F8 aperture
Spatial frequency
R
T
R
T
or even a tripod to achieve optimum quality, SteadyShot INSIDE image
10 line pairs/mm
stabilization featured in a series bodies will vastly improve your chances
30 line pairs/mm
of capturing stunning handheld telephoto images.
R: Radial values T: Tangential values
• Weight (approx): 1500 g
• Dimensions (Dia. x L): 94.5 x 196 mm
• Max. magnification ratio: 0.27x
• Tripod mount supplied
* The SAL70400G received the 2009 TIPA Best Expert Lens award and the
2009-2010 EISA Zoom Lens award.
Manual focus only
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