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Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD vs Tamron 20-40mm f/2.8 Di III VXD

Lens

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Optics
Focal Length
18-300mm
20-40mm
Zoom Ratio
16.67x
2x
Max Aperture
f/3.5
f/2.8
Min Aperture
f/40
f/22
Elements / Groups
19 / 15
12 / 11
Special Elements
4 LD, 3 hybrid aspherical
4 LD, 2 GM aspherical
Coatings
BBAR-G2, fluorine coating
BBAR-G2 Coating, Fluorine coating
Diaphragm Blades
7
9
Max Magnification
0.5x
0.26x
Optical correction & RAW development
Focus
Min Focus Dist.
15cm
17cm
Autofocus
AF Motor Type
VXD
VXD
Full-time Manual
Distance Scale
Focus Limiter
Focus Method
-
Internal Autofocus With Vxd Linear Motor
Physical
Lens Mount
Sony E
Sony E
Weight
620 g
365 g
Dimensions (D x L)
76 x 126 mm
74 x 87 mm
Filter Thread
67 mm
67 mm
Weather Sealing
Hood Supplied
Tripod Collar
Features
Image Stabilization
Zoom Method
External
External
Power Zoom
Zoom Lock
Aperture Ring
Breathing Correction
Parfocal
Custom Buttons
0
0
Color
Black
Black
General
Sensor Format
APS-C
Full Frame
Launch Price
-
USD 699
Announce Date
-
Aug 18, 2022