
Exclusively for digital
NOTE : Vignetting occurs when pictures are taken with a Di-II lens mounted on a 35mm fi lm camera or a digital SLR camera with
an image sensor larger than 24 x 16mm.
Designed for use with both 35mm fi lm and digital SLR cameras.
Di lenses are designed to fit the characteristics of digital cameras as well as film cameras by incorporating
countermeasures against ghosting and fl are through such advances as special coatings.
*The angles of view obtained by a "Di " lens mounted on a digital camera with a smaller-size imager differ from
those obtained by the same lens mounted on a 35mm fi lm camera.
Since the size of 35mm film format
is larger than the image sensor
generally used in D-SLRs, a digital
camera captures a narrower angle of
view than a 35mm film camera even
at the same focal length settings.
Tamron's Di-II lenses, made exclusively
for digital SLR cameras, provide
ideal focal lengths to cover the range
desired by D-SLR shooters.
The combination of SP AF11-18mm and AF18-200mm covers an amazing range of 17-300mm*!
* When converted to 35mm fi lm format.
11mm
Equivalent to
17mm*
What does the designation “Di
designed for exclusive use on digital SLR cameras with smaller-size imagers)
Please read the instruction manual carefully before using the lens.
Quality Assurance Activities:
At Tamron, quality management activities are performed in
compliance with ISO9001:2000 not only to assure product quality but to enhance customer
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promotes corporate activities that protect the earth's environment through the establishment of a
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Designed to capture an ideal range when used with a digital SLR camera
Designed to fi t smaller-size imagers
in order to reduce its diameter
35mm Film
Digital SLR with smaller-size imager
Images taken with
a digital SLR with a
smaller-size imager are
actually cropped to
about 70% scope.
43.27mm
Same
Focal Length
28mm
image
sensor
27.9mm
The general image sensors (
. However, the dimensions
and effective size differ depending upon manufacturers.
Focal Length
Mirror
Attempts to design shorter focal lengths inevitably result in
a larger lens diameter. Tamron has solved this problem by
designing the size of the lens’ image circle to match that
of smaller-size image sensors. In the compact design, it is
almost comparable to a lens offering the same angles of
view in 35mm fi lm format.
*When pictures are taken with a Di-II lens mounted on
a 35mm film camera, image corners become dark (ie.,
vignetting becomes noticeable).
Image sensor
(CCD or CMOS)
18mm
Equivalent to
28mm*
18mm
Equivalent to
28mm*
50mm
Equivalent to
78mm*
200mm
Equivalent to
300mm*
Designed for exclusive use on digital SLR cameras with smaller-size imagers.
Di-II lenses are designed exclusively for digital SLRs with smaller-size imagers. This series of lenses is not
designed for 35mm fi lm cameras and digital SLR cameras with image sensors larger than 24 x 16mm.
Categories of Tamron's Di
Digitally Integrated design
Wide-angle
Zoom
High Power
Zoom
SP AF11-18mm Di