Compare Sony 24-70mm F2.8 GM vs Sony 100mm F2.8 STF GM vs Sony 85mm F1.4 GM
Construction
Aperture Blades
9 blades
11 blades
11 blades
Colors
Black
Black
Black
Form Factor
Standard Zoom Lens
Short Telephoto Prime Lens
Short Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Focus limiter
Physical aperture ring
Lens Mount
Sony E-mount
Sony E-mount
Sony E-mount
Motor
Piezoelectric
Piezoelectric
Ring-type ultrasonic
Optical Formula | Elements
18 elements
14 elements
11 elements
Optical Formula | Groups
13 groups
10 groups
8 groups
Optical Formula | Special Glass
One extreme aspherical, one super ED, one ED element + Nano AR coating groups
ED and aspherical elements, Nano AR coating groups
Extreme Aspherical, Super ED, ED elements + Nano AR coating groups
Dimensions
Filter Diameter
82 mm / 3.23 in
72 mm / 2.83 in
77 mm / 3.03 in
Size | Diameter
88 mm / 3.46 in
85 mm / 3.35 in
90 mm / 3.54 in
Size | Length
136 mm / 5.35 in
118 mm / 4.65 in
108 mm / 4.25 in
Weight
886 g / 31.31 oz
700 g / 24.73 oz
820 g / 28.98 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/2.8 ~ f/22
f/2.8 ~ f/20
f/1.4 ~ f/16
Autofocus
Yes
Yes
Yes
Focal Length
24 mm ~ 70 mm
100 mm
85 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
Yes
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
External zoom (zoom lock available)
Performance
Max Magnification
0.24x
0.25x
0.12x
Min Focus Distance
380 mm / 14.96 in
570 mm / 22.44 in
800 mm / 31.50 in
Production
Accessory
Lens Hood: ALC-SH141 (supplied)
Lens Hood: ALC-SH174 (supplied)
Lens Hood: ALC-SH142 (supplied)
Debut
2016-02-03
2017-02-07
2016-02-03
Model Name
SEL2470GM
SEL100F28GM
SEL85F14GM
Reviews
Neofiliac score
52%
88%
88%
Pros
- Zoom lock prevents zoom creep
- Weather-sealed
- Quite useful f/2.8 constant aperture
- The smoothest bokeh
- Optically stabilized
- Weather-sealed
- Declickable aperture ring
- Superb autofocus
- Bright maximum aperture
- Weather-sealed
- Declickable aperture ring
- Smooth bokeh
- Rather sharp
Cons
- Large and heavy
- Not very sharp
- Not stabilized
- Low light transmission
- STF appeals only to bokeh addicts
- On the heavy side
- Slow autofocus
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