Brochure

AF18-270mm Di Ⅱ
（Model B003）
＜
new
SP AF10-24mm Di Ⅱ
（Model B001）
＜
http://www.tamron.co.jp/en
AF18-200mm F/3.5-6.3 XR Di
(Model A14)
AF18-250mm F/3.5-6.3 Di
(Model A18)
AF18-270mm F/3.5-6.3 Di VC
(Model B003)
AF55-200mm F/4-5.6 Di
(Model A15)
SP AF10-24mm F/3.5-4.5 Di
(Model B001)
SP AF11-18mm F/4.5-5.6 Di
(Model A13)
SP AF17-50mm F/2.8 XR Di
(Model A16)
SP AF17-35mm F/2.8-4 Di
(Model A05)
SP AF28-75mm F/2.8 XR Di
(Model A09)
AF28-200mm F/3.8-5.6 XR Di
(Model A031)
AF28-300mm F/3.5-6.3 XR Di VC
( Model A20 )
AF28-300mm F/3.5-6.3 XR Di
(Model A061)
SP AF70-200mm F/2.8 Di
(Model A001)
AF70-300mm F/4-5.6 Di Macro 1:2
( Model A17 )
SP AF200-500mm F/5-6.3 Di
(Model A08)
SP AF90mm F/2.8 Di Macro 1:1
(Model 272E)
SP AF180mm F/3.5 Di Macro 1:1
(Model B01)
Di
Di
Categories of Tamron's Di lens series
NOTE:Vignetting occurs when pictures are taken with a Di-II lens mounted on a full-size format SLRs camera
or a digital SLRs with a image sensor larger than 24 x 16mm.
Designed exclusively for digital cameras with APS-C size imagers.
Di-II lenses are designed exclusively for digital SLRs with APS-C size imagers. This series of lenses are not
designed for 35mm fi lm cameras and digital SLR cameras with image sensors larger than 24 x 16mm.
Lens Series
Lens Series
NOTE:The angles of view obtained by a “Di” lens mounted on a digital camera with smaller-size imagers differ
from those obtained by the same lens mounted on a full-size format SLRs.
Digitally integrated design.
Di lenses are designed to fi t the characteristics of digital cameras as well as fi lm cameras by paying attention to
countermeasures against ghosting and fl are through such advances as special coatings.
■
■
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.
What does the designation “Di
II
” mean?
(Di
II :
designed for exclusive use on digital SLR cameras with smaller-size imagers)
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 t aken with
a digital S LR with a
smaller-size imager are
actu all y cr opped to
about 70% scope.
Angle of view
75˚23'
Angle of view
52˚58'
Principal
ray
Film
35mm Film
43.27mm
24mm
36mm
Same
Focal Length
28mm
Focal
Point
image
sensor
General
image sensor
27.9mm
about
15.5mm
about
23.2mm
*
The general image sensors ( smaller-size imagers )
are about 24mm x 16mm . However, the dimensions
and effective size differ depending upon manufacturers.
Principal ray
Lights
Focal
Point
Focal Length
Mirror
Film/
Image Sensor
Camera
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 circle
for Di-II lenses
Image sensor
(CCD or CMOS)
35mm Film
Vignetting when used
with a fi lm camera
Di
The combination of SP AF10-24mm and AF18-270mm covers an amazing range of 16-419mm
*
!
* When converted to 35mm fi lm format.
10mm
Equivalent to
16mm
*
108˚44'
(Diagonal)
98˚28'
( Horizontal )
24mm
Equivalent to
37mm
*
60˚20'
(Diagonal)
51˚36'
(Horizontal)
50mm
Equivalent to
78mm*
31˚11'
(Diagonal)
26˚7'
(Horizontal)
270mm
Equivalent to
419mm*
5˚55'
(Diagonal)
4˚55'
(Horizontal)
B001-EG-111- I-0809-0000