Tokina BH-725 T480420 User Manual
Product codes
T480420
24
The range across the film surface onto which the subject is exposed
is expressed as an angle, called the angle of view. Wide-angle
lenses with their short focal lengths have a wide angle of view, which
means the exposure range is wide. Conversely, telephoto lenses,
which have long focal lengths, have a narrow angle of view, making
the exposure range narrow. So a wide-angle lens is used to take a
wide area of a subject nearby whereas a telephoto lens is used to
take only part of a subject located further away. A single zoom lens,
meanwhile, can function as a number of lenses with different focal
lengths, enabling you to smoothly alter the angle of view and quickly
frame the shot. You can select your lens to create the effect of distance
or depth of field, or to suit the location and surrounding conditions.
is expressed as an angle, called the angle of view. Wide-angle
lenses with their short focal lengths have a wide angle of view, which
means the exposure range is wide. Conversely, telephoto lenses,
which have long focal lengths, have a narrow angle of view, making
the exposure range narrow. So a wide-angle lens is used to take a
wide area of a subject nearby whereas a telephoto lens is used to
take only part of a subject located further away. A single zoom lens,
meanwhile, can function as a number of lenses with different focal
lengths, enabling you to smoothly alter the angle of view and quickly
frame the shot. You can select your lens to create the effect of distance
or depth of field, or to suit the location and surrounding conditions.
Angle of View
T O K I N A ' S L E N S T E C H N O L OG Y
Effective Focal Length in Relation to Sensor Size
Full Frame Sensor
Canon EOS 1Ds, 1Ds Mark II
1Ds Mark III, 5D,
Nikon D3 (FX format)
1Ds Mark III, 5D,
Nikon D3 (FX format)
APS-C size sensor
(1.5x= Full Frame Sensor)
Nikon D40,D40X,D50
D60,D70,D70s,D80,
D100,D200,D300,
D2H,D2X,D2HS,D2XS,
Fujifilm FinePix S3 Pro,S5 Pro
Pentax K20D,K200D,K10D
SONY
Nikon D40,D40X,D50
D60,D70,D70s,D80,
D100,D200,D300,
D2H,D2X,D2HS,D2XS,
Fujifilm FinePix S3 Pro,S5 Pro
Pentax K20D,K200D,K10D
SONY
a
700,
a
350,
a
200,
a
100
APS-H size sensor
(1.3x= Full Frame Sensor)
EOS 1D Mark II,
1D Mark IIn,1D Mark III
EOS 1D Mark II,
1D Mark IIn,1D Mark III
APS-C size sensor
(1.6x= Full Frame Sensor)
Canon EOS 20D,30D,40D
Rebel XT,Rebel XTi,Rebel XSi
300D,350D,400D,450D
Canon EOS 20D,30D,40D
Rebel XT,Rebel XTi,Rebel XSi
300D,350D,400D,450D
Four Thirds size sensor
(2x= Full Frame Sensor)
Olympus E1,E300,E330,E500
E400,E410,E420,E510,E-3,
Panasonic DMC-L1, DMC-L10
Olympus E1,E300,E330,E500
E400,E410,E420,E510,E-3,
Panasonic DMC-L1, DMC-L10
TokinaLensCatalog08 09.1.21 11:56 AM Page 24