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ZEISS Loxia 2.4/85
The inconspicuous observer
Despite its compactness the handy ZEISS Loxia® 2.4/85, a moderate telephoto
lens offers outstanding image performance – across the entire image field of
a full-frame sensor. Be it for a portrait or a street or landscape shot, this
inconspicuous lens is great for helping you master these photographic
disciplines.
ZEISS Loxia lenses were specifically designed for Sony α7 cameras. This
means that they can make the most of the mirrorless, full frame system, while
giving you all the creative possibilities of ‘classic’ photography with
manual focus at the same time.
And that’s not all: ZEISS Loxia lenses also provide everything you need to
shoot high quality video, such as the unique DeClick feature for smooth
adjustment of the aperture, for example.
Technical specifications:
Focal length 85 mm
Aperture range f/2.4 – f/22
Focusing range 0,8 m (31.49‘‘) - ∞
Number of elements/groups 7 / 7
Angular field, diag./horiz./vert. 28,63° / 24,05° / 16,23°
Coverage at close range 257,9 mm x 172,6 mm
(10.15‘‘ x 6.80‘‘)
Filter thread M52 x 0.75
Dimensions (with caps) 108 mm (4,25‘‘)
Weight 594 g (1.31 lbz)
Camera mounts E-Mount
Design
Loxia 2.4/85
A lens design with relatively few glass-to-air surfaces, invented by Dr.
Ludwig Bertele at ZEISS in 1930 to provide the fastest lenses of that day for
35 mm photography offering speeds up to f/1.5 and well controlled veiling
glare. This is where the name comes from, containig the German word for sun,
’Sonne’, the symbol of utmost brightness.
Sonnar with 7 elements in7 groups
Lens made of special glass with anomalous partial dispersion
Features
Loxia 2.4/85
DeClick feature
One completely new feature of the Loxia lens is that you can ‘declick’ the
aperture’s locking mechanism using a tool (supplied) and an adjustment screw
on the bayonet surface. This means that for video applications, you can
smoothly eliminate any unwanted differences in brightness as you pan the
camera. This feature can also be used with other video systems whose size
makes them suitable for adaption.
Precise manual focus
Manually focusing a lens means controlling the image result from your
fingertips. A good ergonomic design makes all the difference. ZEISS lenses
stand out with their large rotation angle which enables precise focusing.
Changes are immediately visible in the viewfinder. The high-quality focusing
mechanism moves smoothly without play, thus also supporting the intuitive
interaction with the focal plane. The precise engraving in meter and feet,
and the depth of focus scale provide additional support for manually focusing.
Virtually distortion-free optics
Dramatic perspectives and a view from extraordinary image angles – ZEISS
lenses open up new composition possibilities. Distortion would disrupt the
composition because straight lines, whose image does not go through the image
center, would be reproduced with a curved shape. This annoying effect is
accordingly and largely compensated through elaborate optical designs at all
focal lengths.
High-grade full-metal casing
Tangible quality that holds its value is what qualifies ZEISS lenses for
decades of hard use. A precision-engineered full-metal casing, grippy focus
and aperture rings made of metal, and a tough front bayonet and filter screw
guarantee stunning photographic results. A special sealing ring on the
bayonet also protects the interface between the camera and the lens.
Immensely compatible
The ZEISS Loxia lenses are suitable for use with the mirrorless Sony Alpha
cameras with E-mount and were optimized for sensors up to full 35 mm format
(24 x 36 mm). With the ZEISS Loxia lenses, the aperture is controlled
manually. This allowed the integration of the so-called DeClick feature of
the mechanical aperture ring. The cameras feature the corresponding automatic
exposure control (A) and manual exposure control (M).
1399镁
全手动、有电子接点、CPU
7组7片 特殊设计达到零变型
最短对焦0.8M
DeClick 可调整有段无段光圈