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Sigma 28-105mm T3 FF AF Cine Zoom vs TAMRON 12-20mm f/2.8 Di III

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Lens

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Optics
Focal Length
28-105mm
12-20mm
Zoom Ratio
2.9x
-
Max Aperture
f/2.8
f/2.8
Min Aperture
f/21
f/16
Elements / Groups
18 / 13
17 / 12
Special Elements
XA, ED, Aspherical
1 XGM element, 3 LD elements and 2 GM elements
Diaphragm Blades
13
12
Max Magnification
0.32x
0.17x
Coatings
-
AX Coating, BBAR-G2 Coating and Fluorine Coating
Focus
Min Focus Dist.
40cm
18cm
Autofocus
AF Motor Type
HLA
VXD linear motor
Focus Method
internal
-
Full-time Manual
Distance Scale
Focus Limiter
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Physical
Lens Mount
Sony E
Sony E
Weight
1500 g
570 g
Dimensions (D x L)
95 x 157.9 mm
90 x 119 mm
Filter Thread
82 mm
-
Weather Sealing
Hood Supplied
Tripod Collar
Features
Image Stabilization
Zoom Method
Internal
-
Power Zoom
Zoom Lock
Aperture Ring
Breathing Correction
Parfocal
Custom Buttons
1
0
Color
Black
Black
General
Launch Price
USD 3339
-
Announce Date
Feb 25, 2026
Jul 15, 2026
Sensor Format
Full Frame
Full Frame