Sony LCL60AM, ALCSH0006, LCL90AM, ALC-F55A specifications 20mm F2.8 SAL20F28, 28mm F2.8 , SAL28F28

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M mode, 1/125 sec., F11, ISO 200, Landscape Creative Style; Photo: Yuji Nukui

Ultra wide angle

20mm F2.8  SAL20F28

Wide angle

28mm F2.8 

M mode, 1/125 sec., F11, ISO 200, Landscape Creative Style; Photo: Yuji Nukui

SAL28F28

At 20 mm

 

100

 

80

(%)

60

Contrast

40

 

 

20

0 3 6 9 12 20

Distance from optical center of lens (mm)

Spatial frequency

Max. aperture

 

F8 aperture

 

 

R

 

T

 

R

 

T

10 line pairs/mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30 line pairs/mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R: Radial values T: Tangential values

Wide 94° angle of view on full-frame cameras

Precisely corrected for natural perspective

Aberration effectively suppressed throughout the focus range

Rear-focusing mechanism for fast autofocus response

Circular aperture for attractive defocusing

This rigorously corrected lens gives you a wide angle of view for images that benefit from dramatic perspective with minimum distortion. It’s an ideal choice for covering spread-out scenes that you can’t get far enough way from to cover with a “normal” lens. But there’s more: since it has extended depth of field that can keep everything from 25 centimeters to infinity in crisp focus, you can create exaggerated perspective by including very close and very distant objects in the frame. Close objects will loom large, while distant objects appear to recede markedly into the distance. Meticulous attention has been paid to minimizing flare and internal reflections in this advanced design, with the result that excellent sharpness and contrast are maintained through the image.

Weight (approx): 285 g

Dimensions (Dia. x L): 78 x 53.5 mm

Max. magnification ratio: 0.13x

At 28 mm

 

100

(%)

80

 

Contrast

40

 

60

 

20

0 3 6 9 12 20

Distance from optical center of lens (mm)

Spatial frequency

Max. aperture

 

F8 aperture

 

 

R

 

T

 

R

 

T

10 line pairs/mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30 line pairs/mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R: Radial values T: Tangential values

Excellent contrast and resolution Compact, lightweight design Built-in slide-out lens hood

An outstanding choice for 35mm full-frame and APS-C format cameras

28 millimeters is an extremely versatile focal length that can be useful in a wide variety of situations on both full frame and APS-C format cameras. On a 35mm full frame format camera, 28mm is wide enough to allow comfortable shooting indoors or on the street without producing forced perspective. On an APS-C format camera 28mm is equivalent to a focal length of 42mm, which is close to “normal” in terms of angle-of-view and perspective. For photo enthusiasts who use either or both types of bodies, this lens is a must-have! It’s compact and lightweight, and is a versatile, convenient choice for use either as a main or second lens.

Weight (approx): 185 g

Dimensions (Dia. x L): 65.5 x 42.5 mm

Max. magnification ratio: 0.13x

30

31

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Contents Lenses Creation Contents If a little hole can do all of this, why do we need lenses? Elements and groupsZoom and focus mechanisms Refraction bending lightThree keys to effective defocusing Sony A-mount and E-mount systemsAperture and exposure Number mathOther macro lens characteristics you should know about Focal lengthMaximum magnification ratio Technical definition of focal lengthUse your lens hood Scientific approachNeutral density filters Scene to come throughResolution, contrast and sharpness PortraitsMacro and close-ups LandscapesRear focusing mechanism Aspherical lens elements ED and Super ED glassAuto clutch Floating lens mechanism SSM Super Sonic wave MotorZoom Lenses DT 11-18mm F4.5-5.6 SAL1118Weight approx 470 g DT 16-50mm F2.8 SSM SAL1650DT 18-55mm F3.5-5.6 SAM SAL1855 DT 18-200mm F3.5-6.3 SAL1820028-75mm F2.8 SAM SAL2875 DT 18-250mm F3.5-6.3 SAL1825028mm to 300mm DT 55-200mm F4-5.6 SAM SAL55200-2 75-300mm F4.5-5.6 SAL75300Providing outstanding image quality from 18mm to 200mm High-performance full-frame bodiesFixed Focal Length Lenses 16mm F2.8 Fisheye SAL16F2828mm F2.8  20mm F2.8 SAL20F28SAL28F28 DT 35mm F1.8 SAM SAL35F18 50mm F1.4 SAL50F14DT 50mm F1.8 SAM SAL50F18 85mm F2.8 SAM SAL85F28135mm F2.8 T4.5 STF SAL135F28 DT 30mm F2.8 Macro SAM SAL30M2850mm F2.8 Macro SAL50M28 100mm F2.8 Macro SAL100M28Lenses 70-200mm F2.8 G SAL70200G70-300mm F4.5-5.6 G SSM SAL70300G 70-400mm F4-5.6 G SSM SAL70400G35mm F1.4 G SAL35F14G 300mm F2.8 G SAL300F28G4x Teleconverter 0x TeleconverterVario-Sonnar T* 16-35mm F2.8 ZA SSM SAL1635Z Vario-Sonnar T* DT 16-80mm F3.5-4.5 ZA SAL1680ZVario-Sonnar T* 24-70mm F2.8 ZA SSM SAL2470Z Distagon T* 24mm F2 ZA SSM SAL24F20ZPlanar T* 85mm F1.4 ZA SAL85F14Z Sonnar T* 135mm F1.8 ZA SAL135F18ZMount Lenses SEL16F28 16mm F2.8 Fisheye Converter Ultra Wide Converter Sonnar T* E 24mm F1.8 ZA SEL24F18Z 18-55mm F3.5-5.6 OSS SEL185555-210mm F 4.5-6.3 OSS SEL55210 18-200mm F3.5-6.3 OSS SEL18200Unwanted camera noise 50mm F1.8 OSS SEL50F18 30mm F3.5 Macro SEL30M35Main specifications of a lenses Lens accessories DI11012