Optics
Focal Length
20-70mm
17-50mm
Max Aperture
f/2.8
f/2.8
Elements / Groups
21 / 15
17 / 13
Diaphragm Blades
11
7
Zoom Ratio
-
2.9x
Min Aperture
-
f/22
Special Elements
-
2 FLD glass elements 2 glass mold elements 1 hybrid aspherical lens
Max Magnification
-
0.2x
Focus
Min Focus Dist.
21cm
28cm
Autofocus
AF Motor Type
VCM
Ultrasonic
Full-time Manual
Distance Scale
Focus Limiter
Focus Method
-
internal
Physical
Lens Mount
Canon RF
Nikon F
Weight
865 g
565 g
Dimensions (D x L)
88 x 122 mm
84 x 92 mm
Filter Thread
82 mm
77 mm
Weather Sealing
Hood Supplied
Tripod Collar
Features
Image Stabilization
Power Zoom
Zoom Lock
Aperture Ring
Breathing Correction
Parfocal
Custom Buttons
0
0
Color
Black
Unknown
Zoom Method
-
Rotary (Extending)
General
Sensor Format
Full Frame
APS-C