APO-VARIO-ELMARIT-SL 90–280 f/2.8–4

Fast autofocus

The zoom range of the fast APO-Vario-Elmarit-SL 90–280 f/2.8–4 follows on directly from that of the Vario-Elmarit-SL 24–90 f/2.8–4 ASPH. Together, these two lenses cover a full range of focal lengths extending from 24 to 280 mm.

The newly developed dual internal focusing (DSD®) concept enables a fast autofocus. Its optical image stabilisation (OIS) compensates for up to 3.5 stops of camera shake.

AF System with Dual Syncro Drive™
From zero to sharp in no time

The AF system of these lenses is fast, precise, and almost silent. They thank their outstanding AF performance figures to the autofocus drive unit they share. These are limited only by the mass of the lens elements moved when focusing, the travel from infinity to the closest focusing distance and, of course, the amount of space available. In order to preserve the compact dimensions of the lenses, the integration of these components must follow an integral approach.

More Details

Specialists from the areas of optical and mechanical engineering and electronics worked together in an interdisciplinary team on the development of a unique lens concept based on double internal focusing. This system, comprising two particularly light focusing lenses, allows the construction of particularly small and compact drive systems. In addition to space limitations, the choice of the drive motors is also determined by the AF principle used for focusing.

Several contrast measurements at various focusing positions must be made before the correct direction of motion for focusing can be determined and followed by precise focusing. In this procedure, the focusing lenses must be moved rapidly backwards and forwards in accordance with the speed specifications of the contrast AF system. This requires a dynamic drive system without any play.

In these lenses, the drive units installed are extremely powerful and robust stepping motors with Dual Syncro Drive™. Thanks to these, the entire focusing throw can be traveled completely in fractions of a second. This means that the lenses achieve values that are among the best in the full-frame system segment in terms of speed, precision, and noise emissions. 

Construction Details

Of the 23 elements in seven moving groups, seven are made from glasses with anomalous partial dispersion for the minimisation of chromatic aberrations. The movement of the two focusing elements is provided by a newly developed drive concept with linear positioning of the lenses by stepping motors. A special feature of this is that the overall length of the lens does not change when either focusing or zooming. 

More Details

The lens hood supplied with the lens suppresses undesirable reflections and stray light. The lens also has a removable tripod plate for attaching it to a tripod. Its ergonomic design makes the lens easier to carry by hand and allows the attachment of a lens belt. A lockable rotating tripod collar allows the lens to be fixed at any angle. The collar has detents every 90 degrees for rapid switching from landscape to portrait format.

Proofs of performance
APO VARIO-ELMARIT-SL 90–280 f/2.8–4 in Action

9
f
1/250
s
100
ISO
280
mm
6.3
f
1/250
s
200
ISO
101
mm
5.6
f
1/400
s
400
ISO
280
mm
5.6
f
1/3.200
s
400
ISO
130
mm
6.3
f
1/400
s
400
ISO
280
mm
3.9
f
1/800
s
800
ISO
264
mm
2.9
f
1/800
s
800
ISO
96
mm
9
f
1/1.600
s
400
ISO
110
mm
5.6
f
1/800
s
400
ISO
107
mm
5
f
1/640
s
400
ISO
90
mm
7.1
f
1/500
s
400
ISO
277
mm
9
f
1/400
s
200
ISO
94
mm
4
f
1/250
s
1600
ISO
222
mm
8
f
1/800
s
6400
ISO
232
mm

Technical Data

APO-Vario-Elmarit-SL 90–280 f/2.8–4

Download (pdf/876.50 kB)

Order number 11 175
Angle of view (diagonal, horizontal, vertical) Focal length 90mm: 26.4°/22.1°/14.8°;
Focal length 280mm: 9.1°/7.5°/5.0°
Optical design
Number of elements/groups 23/17
Position of entrance pupil Focal length 90 mm: 130.2 mm
Focal length 280 mm: -21.1 mm
Working range Focal length 90 mm: 0.6 m to infinity
Focal length 280 mm: 1.4 m to infinity
Distance setting
Smallest object field Focal length 90 mm: 114x 171 mm
Focal length 280 mm: 120 x 180 mm
Largest reproduction ratio Focal length 90 mm: 1:4.8
Focal length 280 mm: 1:5.0
Aperture
Setting/function Electronically controlled iris, setting with the camera clickwheel control, third-stop and half-stop settings
Aperture setting range Focal length 90mm: 2.8-22; Focal length 280mm: 4-22
Smallest value 22
O.I.S. Performance as per CIPA 3.5 stops (at focal length f=280mm with Leica SL (Typ 601) camera)
Bayonet/sensor format Leica L bayonet, full-frame 35mm format
Filter mount E82
Dimensions and weight
Length to bayonet flange 238 mm (without lens hood)
Largest diameter 88 mm
Weight 1.710 g

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APO-VARIO-ELMARIT-SL
90–280 f/2.8–4

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Name Order number
APO-Vario-Elmarit-SL 90–280 f/2.8–4 11175
Lens Hood for SL 90–280 f/2.8–4 12300
Lens rear cap SL 16064
Lens cap E82 16019
Filter ND 16x, E82, black 13059
Filter P-cir, E82, black 13052
Filter UVa II, E82, black 13042

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