Sony SLT-A57M Specyfikacje - Strona 21

Przeglądaj online lub pobierz pdf Specyfikacje dla Aparat cyfrowy Sony SLT-A57M. Sony SLT-A57M 35 stron. Dslr cameras and lenses for dslr camera
Również dla Sony SLT-A57M: Ograniczona gwarancja (1 strony)

Drukuj stronę

G Lenses

Sony G Lenses are an exceptional breed. They inherit a

distinguished pedigree from the original Minolta

lens line,

with industry-leading Sony design and quality assurance

technology added to push their performance to the forefront

of twenty-first century photography. G Lenses impart a visual

elegance to every aspect of the images they produce:

extraordinary presence at in-focus areas, smoothly dissolving

to luscious out-of-focus rendering that can provide a beautiful

foundation for captivating photographic art. Their handling is

extraordinary too, with intimate operation and response that

seamlessly connect the process of taking photographs to the

photographer's imagination.

Telephoto zoom

70–200mm F2.8 G SAL70200G

Four ED glass elements effectively suppress aberration

Constant F2.8 maximum aperture

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 200 mm

100

The range from 70 to 200 millimeters is where much of the telephoto action

occurs. The ability to cover that range with a constant F2.8 aperture affords

some significant photographic advantages, and the outstanding clarity and

contrast offered by the SAL70200G multiplies those advantages many times

over. Although the large F2.8 maximum aperture does make it easier to

create beautifully defocused backgrounds, there are important advantages

for shooting moving subjects as well. Larger apertures—often referred to as

Distance from center of image (mm)

"fast" as well as "bright"—allow you to use faster shutter speeds to achieve

equivalent exposure, making it possible to capture motion that might end

Max. aperture

F8 aperture

Spatial frequency

up as a blur with a slower lens. The SAL70200G does it all with characteristic

10 line pairs/mm

G Lens refinement and class.

30 line pairs/mm

R: Radial values T: Tangential values

• Weight (approx): 1340 g

• Dimensions (Dia. x L): 87 x 196.5 mm

• Max. magnification ratio: 0.21x

• Tripod mount supplied

A mode, 1/60 sec., F11, ISO 100, Daylight white balance