Carl Zeiss Touit 12 mm f/ 2.8 Lens 产品宣传册
Makro-Planar
®
T
* f/2.8 - 100 mm
The 100 mm Makro-Planar
®
T
* f/2.8 lens is a
universal lens which, without further attachments,
permits high-quality long-range and
macrophotography down to a scale of 1:1. A
floating element ensures uniform and high image
quality over the whole focusing range. The helical
focusing mount permits the image scale to be
continuously varied from
permits high-quality long-range and
macrophotography down to a scale of 1:1. A
floating element ensures uniform and high image
quality over the whole focusing range. The helical
focusing mount permits the image scale to be
continuously varied from
∞
to 1:1. The focusing
scale goes down to engraving 0.45 m. There is a
second scale on the main mount for reading the
image scale set.
second scale on the main mount for reading the
image scale set.
The free working distance of 160 mm leaves
sufficient room for the illumination of macro
subjects in 1:1 photography. In insect photography,
for example, this enables you to get up close
enough to your subject without disturbing it.
sufficient room for the illumination of macro
subjects in 1:1 photography. In insect photography,
for example, this enables you to get up close
enough to your subject without disturbing it.
The features of the Makro-Planar
®
lens make it
suitable for long-range and macrophotography.
Among the most popular fields of application are
landscape and travel photography, portrait and
family photography, photographs of insects and
flowers, coins and stamps, and all types of
reproduction.
Among the most popular fields of application are
landscape and travel photography, portrait and
family photography, photographs of insects and
flowers, coins and stamps, and all types of
reproduction.
Cat. No. of lens:
10 78 33
Weight:
approx. 740 g
Number of elements:
7
Focusing range:
∞
- 1:1
Number of groups:
7
Aberration correction for close range
Max. aperture*:
f/2.8*
by floating element
Focal length:
100.0* mm
Entrance pupil*:
Negative format:
24 x 36 mm
Position:
39.9 mm behind the first lens vertex
Angular field 2w*:
24º
Diameter:
35.4 mm
Spectral region:
visible spectrum
Exit pupil*:
Aperture scale:
2.8 - 4 - 5.6 - 8 - 11 - 16 - 22
Position:
26.5 mm in front of the last lens vertex
Mount:
focusing helicoid with bayonet;
Diameter:
27.3 mm
coupling system for automatic
Position of principal planes*:
diaphragm function. TTL metering
H:
8.6 mm behind the first lens vertex
either at full aperture or in
H':
50.0 mm in front of the last lens vertex
stopped-down position.
Back focal distance:
48.5 mm
Filter connection:
clip-on filter, dia 70 mm
Distance between first
thread M 67 x 0.75
and last lens vertex:
71.0 mm
* for
∞