Sony FE 24mm F1.4 GM Alpha Full-frame E-mount Wide Prime G Master Lens (SEL24F14GM)

The 24mm F1.4 GM features an advanced optical design, including two XA (Extreme Aspherical) elementsand three ED (Extra-low Dispersion) glass elementsthat delivering outstanding corner-to-corner resolution,even at a wide F1.4 aperture. An11-blade circular aperture mechanism creates beautiful bokeh that is a hallmark of the G Master series. Fast focusing is attained through the DDSSM (Direct Drive SSM) focus drive system.This lens sports class-leading size and weight, providing great handling and mobility.

Product Details:

• CompactG Master wide primelens w/stunning wide-open resolution

• F1.4 max aperture provides extraordinaryexposure and depth of field

• G Master design combines extraordinary sharpness and smooth bokeh

• Two XA elements for natural, lifelike high resolution results

• 11-blade circular aperture contributes to gorgeous bokeh

• Three ED (Extra-low dispersion) glass reduces flare and ghosting

• Manual aperture ring w/ selectable on/off click for stills or movie

• Direct Drive SSM (DDSSM) for fast, quiet, precise focusing

• Programmable focus hold button, for multiple functions

• Dust and moisture resistant for robust reliability

• Instant auto/manual focus selection via a AM/MF switch

• Nano AR coating suppresses reflections, flare and ghosting

• Designed to achieve 50 line pairs/mm resolving power

• Linear Response MF for precise manual focus control

Product Features:

CompactG Master wide prime lens w/ stunning wide-open resolution
The FE 24mmF1.4 GM realizes consistently high resolution across the entire frame and delivers soft and natural bokeh -a signature feature of Sony's G Master lens series. It also boasts a new optical design comprised of 10 groups with 13 elements, including two XA (extreme aspherical) and three ED (Extra-low Dispersion) elements. The incorporation of two XA elements ensures that point light sources can be accurately reproduced, making the FE 24mm F1.4 GM a compelling proposition for astrophotography.  For impressive clarity, Sony's unique Nano AR Coating is applied to reduce lens flare and ghosting, even in landscape shots where the position of the sun can be problematic with a normal lens.

F1.4 max aperture
The F1.4 max aperture maintains exposure and depth of field, allowing youto isolate your subject from the foreground and background with amazing light gathering capabilities when shooting wide open. When changing your aperture to defocus the background, the areas out of the focal plane appear blurred. This 'bokeh' effect of the blurred background isenhanced with circular aperture blades used in this lens.

11-blade circular aperture contributes to gorgeous bokeh
The 11-blade circular aperture maximizes the beauty of this large-aperture prime-lens, contributing to impressive images in which the subject stands out against a smoothly defocused foreground and background, as well as perfectly round points of defocused light. Conventional aperture blades have flat sides that create unappealing, polygonal-shaped defocused points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.

Direct Drive SSM (DDSSM) for fast, quiet, precise focusing
The 24mm F1.4 GM lens supports hybrid autofocus for both contrast and focal-plane phase detection AF. It has a high-precision Direct Drive Super Sonic Motor (DDSSM) system that ensures exceptionally fast, quiet and accurate AF performance. Theprecision internal focus mechanismaids in AF speed by moving only the middle groups of the optical systemand effectively minimizing focus breathing, while keeping the lens size compact and lightweight. In addition to being the ideal wide prime lens for stills, it isalso exceptionally suited for video with a linear motor that takes on the vital role of 'wobbling' to providing high-speed actuation for the contrast AF detection system, for smooth, continuous AF.

Two XA (Extreme Aspherical) lens element
The 24mm F1.4 GM employs two XA (Extreme Aspherical) lens element, one of which is the front lens. This large-diameter front XA lens element features a new optical design, maximizing the advantages of the short mirrorless camera flange distance, and effectively suppresses variousaberrations, especially the peripheral area in the frameand sagittal flare.Two XA elements compensate for coma, field curvature, and astigmatism that can be problems with wide-angle large-aperture optics.This also contributes to the compact and lightweight design.

Three ED (Extra-low dispersion) glass  elements
Sony's original Nano AR Coating technology minimizes flare and ghosting, for dynamic range that achieves lifelike detail and gradation with advanced camera sensors.  This precisely defined regular nano-structure allows accurate light transmission, contributing to high-quality images, even more so than with lenses that use coatings with an irregular nano-structure. The reflection suppression characteristic of the Nano AR Coating is superior to conventional anti-reflective coatings, providing a notable improvement in clarity, contrast, and overall image quality.

Compact, lightweight design
This remarkably compact and lightweightlens weighs in at only 15.7oz (445g) with smallest in class dimensions of 3" (75.4mm)diameterand 3-3/4" (92.4mm) in length. It'scompact, lightweight design enhances portability and mobility thanks to the combination of optical design utilizing two XA elements and the newly developed DDSSM (Direct Drive SSM) AF system.

Manual aperture ring w/ selectable on/off click for stills or movie
A responsive manual aperture ring offers positive action that will satisfy professional photographers and moviemakers alike. The aperture ring click stops can be switched on or off as required. "Off" is the preferred setting for moviemakingsince it results in the least aperture operation noise. When "On" the ring provides tactile feedback that is useful when shooting stills.

Focus hold button, programmable for multiple functions
The focus hold button not only performs its primary function to lock focus when recomposing, but can be customized to a number of other functions depending on your needs. In addition to Focus Hold, these custom functions include: Eye AF, AF On, Aperture Preview, Shot Result Preview or Bright Monitoring.

Dust and moisture resistant for robust reliability1
The dust and moisture resistance design makes this lens appropriate for heavy-duty outdoor use, especially when combined with a camera that employs weather resistant measures1.

Astrophotography Sagittal flare suppression
Sagittal flare is a phenomenon that results in an unnatural spreading of point light sources that appears somewhat like a bird spreading its wings and becomes more pronounced towards the image periphery.  It is most common in large-aperture lenses. The 24mm F1.4 GM incorporates a new optical design, including two XA lens elements,to effectively suppress and correct for sagittal flare,making this lens ideal for night sky and astrophotography.

Instant auto/manual focus selection
Instantly and quickly switch between auto and manual focus via an AM/MF switch on the side of the lens. This makes operation faster and easier as you let the camera and lens focus for you, or decide to take control and manually focus on the precise point you chose.

Linear Response MF
Linear Response MF realizes precise manual focus control, closely equivalent to mechanical manual focus, which enables linear focus transition to ring rotation angle for repeatable and accurate manual focus that is especially desirable for MF control during video capture.

Close-up, wide angle shooting
Get a unique perspectivethrough close-up, wide angle shooting. The combination of high close-up capability with a minimum focusing distance of 0.79ft.(0.24m), a max.magnification of 0.17xand wide angle characteristic produces unique expression with dramatic perspectives and beautiful background bokeh.

Product Specifications:

Lens Specifications:
Type: Converter
Product name: FE24 mm F1.4 
Model name: SEL24F14GM
Lens mount: Sony E-mount
Format: 35mm full frame
Focal-length (mm): 24mm
35mm equivalent focal-length (APS-C) (mm): 36mm
Lens construction (groups-elements): 10 groups - 13 elements
Angle of view (APS-C)[[F_DM0001]]: 61deg
Angle of view (35mm): 84deg
Maximum aperture (F): F1.4
Minimum aperture (F): F16
Number of aperture blade: 11-blades
Circular aperture: Yes
Minimum focus distance (m): 0.24m
Minimum focus distance (ft): 0.79'
Maximum magnification ratio (x): 0.17x
Filter diameter (mm): 67mm
ADI metering / Distance encoder
Image stabilization (SteadyShot): - (body-integrated)
Compensation effect
Zoom system
Zoom speed switch (Step)
Teleconverter compatibility (x1.4): Incompatible
Teleconverter compatibility (x2.0): Incompatible
Hood type: Petal shape, bayonet type 
Dimensions dia. x length  (mm): 75.4mm x 92.4mm
Dimensions  dia. x length (in.): 3" x 3-3/4"
Weight (approx.) (g): 445g
Weight (approx.)  (oz.): 15.7 oz

Supplied Accessories:
Hood (model): ALC-SH154
Lens front cap: ALC-F67S 
Lens rear cap: ALC-R1EM
Case: Yes

Internal Information:
Fluorine coating: Yes
Mount rubber ring: Yes
Series: G Master
Type: Fixed-focal length lens
Easy Choice lens
ED/Super ED glass (elements): ED (3), Super ED (0)
Aspherical lens (elements): Yes (2) (including 0 AA lens and 2 XA lens)
Lens coating: Yes
Nano AR Coating: Yes
T* Coating
Auto Clutch
Focusing type: Internal
Pre-focus
AF actuator: DDSSM
Zoom Actuator
Focus hold button: Yes - 1
Focus range limiter
Aperture Ring: Yes
Click for aperture ring: Yes
Zoom rotation reversing
Optical SteadyShot Switch
Optical SteadyShot mode
AF/MF switch: Yes (switch)
Moisture-proof, dust-proof[[F_DM0007]]: Yes
Hood lock: Yes
Zoom lock
SMO (Smooth Motion Optics)
Distance index
Infrared index
Depth-of-field index
Slip on hood for PL filter
Non-rotating filter thread: Yes
Magnification index