Sony FE 40mm f/2.5 G Lens
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The high-quality G Lens optical design incorporates three aspherical lens elements for sharp detail and outstanding corner-to-corner resolution. In addition, the state-of-the-art optical design takes maximum advantage of the short flange back, unique to mirrorless cameras, to realize stunning compactness at 68mm diameter x 45mm and a weight of only 173g. Mobility is a key feature, preserving the compactness of the overall E-mount system whether shooting with a full-frame or APS-C body or shooting either still images or movie.
The F2.5 max aperture is ideal for low-light situations for maximum light gathering capability while also providing a shallow depth of field. Beautiful natural bokeh expected from a G Lens is delivered with minimal spherical aberration and provision of a 7-blade circular aperture for round defocused light sources.
High image quality is realized by the inclusion of three aspherical lens elements compensate for various aberrations, delivering high resolution performance from corner to corner of the image, even from the widest aperture with shallow depth of field.
While conventional aperture blades have flat sides that create unappealing, polygonal-shaped defocused points of light, the FE 40mm F2.5 G incorporates a 7-blade circular aperture mechanism to maximizes the beauty of this large-aperture prime-lens. The wide f2.5 aperture and circular aperture blades contribute 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.
Taking full advantage of the continuing rapid advances in the speed and performance of newer camera bodies, two linear motors are used in the FE 40mm F2.5 G lens to deliver fast, precise AF (autofocus) with excellent tracking performance. Tracking is maintained despite instantaneous changes in subject motion, making the lens ideal for situations require tracking a moving subject.
Linear Response MF (manual focus) ensures that the focus ring responds directly and linearly to subtle control when focusing manually. Focus ring rotation translates directly to a corresponding change in focus, so control feels immediate and precise in both still and movie modes.
Get a unique perspective through close-up, wide angle shooting. The standard 40mm angle of view is useful in applications from snap shots to movie shooting. The FE 40mm F2.5 G features an impressive minimum focus distance of 11.02” (0.28m) (AF) / 9.84” (0.25m) (MF) and maximum magnification of 0.2x (AF) / 0.24x (MF). With the wide F2.5 max. aperture, you can also shoot close-ups with beautiful blurred background bokeh.
The FE 40mm F2.5 G lens has clear advantages for moviemaking. With an wide 40mm angle of view on full frame bodies and 60mm on APS-C bodies or Super 35mm cameras, dual linear motors for fast, precise autofocus and tracking, a bright F2.5 maximum aperture for beautifully defocused background bokeh, excellent close-up performance and a class leading ultra-compact and lightweight design, this lens is ideal for all types of content creators. In addition to the super small size and light weight, its internal focus design makes it convenient for use on compact gimbals or grips for vlogging and other applications.
The ultra-compact FE 40mm F2.5 G lens measures 68mm diameter x 45mm and weighs in at only 173g. This makes it ideal for both APS-C as well as full-frame camera users. Its ultra-compact size and light weight balances well on smaller APS-C format bodies, providing a very useful mid-range focal length of 60mm (full-frame format equivalent). This super small lens is also ideal for full-frame users wanting a standard 40mm field of view who prize compact size and weight to reduce their load, especially for those photographers and videographers who travel a lot.
Instantly and quickly switch between auto and manual focus via an AF/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 choose.
A responsive manual aperture ring offers positive action that will satisfy photographers and moviemakers alike. The aperture ring click stops can be switched on or off as required. “Off” is the preferred setting for moviemaking since it results in the least aperture operation noise. When “On” the ring provides tactile feedback that is useful when shooting stills.
The focus hold button not only performs the traditional 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.
Despite the ultra-compact size of the FE 40mm F2.5 G, its dust and moisture resistance design make this lens appropriate for outdoor use, especially when combined with a camera that employs weather resistant measures1.
The superb high-quality build uses durable metal (aluminum) for the exterior finish and hood, achieving a sophisticated look, providing satisfaction of ownership, and contributing to increased strength and durability. The iris ring indices, focal length markings, and Sony logo on the hood, are engraved rather than printed, giving a finish with a sophisticated feel.
The internal focus design maintains the overall length of the lens constant when focusing, allowing easy movie shooting with a small gimbal or grip attached. Focusing with a PL filter attached is also worry-free.