Sony FE 100-400mm F4.5-5.6 GM OSS vs Sony FE 400mm F2.8 GM OSS

This is a full comparison between the lenses Sony FE 100-400mm F4.5-5.6 GM OSS and Sony FE 400mm F2.8 GM OSS.

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Product
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Name Sony FE 100-400mm F4.5-5.6 GM OSS Sony FE 400mm F2.8 GM OSS
Manufacturer Sony Sony
SKU SEL100400GM SEL400F28GM
Release Date and Price
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Release Year 2017 2018
Release Date 2017-04-19 2018-06-27
MSRP N/A N/A
Last known price 2498 USD 11998 USD
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Lens Type
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Lens Type Telephoto
Supertelephoto
Telephoto
Supertelephoto
Zoom or Prime Zoom lens Prime lens (no zoom)
Mount and Compatibility
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Mount Sony E Sony E
Designed for APS-C sensor No (Suitable for all sensors) No (Suitable for all sensors)
Focus
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Autofocus (AF) Yes Yes
Built-in Autofocus (AF) Motor Yes Yes
Motor Type Linear Motor Linear Motor
Focus Method Internal Internal
Closest Focusing Distance 98 cm 270 cm
Maximum Magnification 0,35 0,16
Aperture
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Maximum Aperture F4,5-5,6
This lens has a variable aperture at different focal lengths.
F4,5 at 100 mm
F5,6 at 400 mm
Variable Aperture
F2,8
Diaphragm Blades 9 11
Optics
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Construction 22 elements  /  16 groups 23 elements  /  17 groups
Special Elements/Coatings Two ED, one super ED element. Fluorine-coated front element. 1 fluorite and 3 ED elements, Nano AR and fluorine coatings
Focal Length
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Focal Length 100-400 mm 400 mm
Zoom Range 300 mm None (Prime lens)
No Zoom available.
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization Yes
Optical SteadyShot
Yes
Image Stabilization CIPA Rating N/A N/A
Physical
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Weather Sealing Yes Yes
Diameter 94 mm 158 mm
Length 205 mm 359 mm
Weight 1395 gr 2895 gr
Other
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 400mm F2.8 GM OSS
Filter Type Filter Thread Drop-in Filter
Filter Diameter 77 mm 40 mm
Lens Hood Included Included
Lens Hood SKU ALC-SH151 ALC-SH155
Tripod Collar Included Included
Tripod Collar SKU N/A N/A