Sony
FE 70-200mm F2.8 GM OSS II
Sony E Mount
The standard telephoto zoom, completely redesigned to be 29% lighter and significantly sharper.
$2,799
Launch priceReleased Oct 2021
Tamron
17-28mm F2.8 Di III RXD
Leica L Mount
17-28mm F2.8 Di III RXD — 17–28mm f/2.8 for Leica L, a popular choice in the tamron lineup.
$799
Launch priceReleased Jun 2020
FE 70-200mm F2.8 GM OSS II is 1.3 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
FE 70-200mm F2.8 GM OSS II
Wins
17-28mm F2.8 Di III RXD
2 categories tied
TL;DR — Key differences
- AFE 70-200mm F2.8 GM OSS II has higher OIS effectiveness (4.5 stops vs 0 stops)
- B17-28mm F2.8 Di III RXD has lower Weight (438 g vs 1045 g)
- B17-28mm F2.8 Di III RXD has lower Length (92 mm vs 200 mm)
- B17-28mm F2.8 Di III RXD has lower Min focus distance (19 cm vs 40 cm)
- AFE 70-200mm F2.8 GM OSS II has higher Max magnification (0.3 × vs 0.19 ×)
Key specs at a glance
Size and weight, to scale
FE 70-200mm F2.8 GM OSS II
⌀88 × 200 mm
1045 g (2.30 lb / 36.86 oz)
Credit card
85.6 × 54 mm
for scale
17-28mm F2.8 Di III RXD
⌀80 × 92 mm
438 g (0.97 lb / 15.45 oz)
FE 70-200mm F2.8 GM OSS II is 108mm longer and 8mm wider than 17-28mm F2.8 Di III RXD.
FE 70-200mm F2.8 GM OSS II is 607 g heavier than 17-28mm F2.8 Di III RXD.
Diameter (⌀) is the maximum barrel width; length is measured from the mount to the front of the lens.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose the FE 70-200mm F2.8 GM OSS II
- ✓
Special elements
Adds 1 XA, 1 Aspherical, 1 Super ED…
- ✓
OIS effectiveness
4.5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only FE 70-200mm F2.8 GM OSS II supports it
- ✓
Custom function button
Only FE 70-200mm F2.8 GM OSS II supports it
- ✓
Max magnification
0.3 × vs 0.19 × — higher is better
Reasons to choose the 17-28mm F2.8 Di III RXD
- ✓
Special elements
Adds 1 LD, 2 GM Aspherical
- ✓
Weight
438 g vs 1045 g — lower is better
- ✓
Length
92 mm vs 200 mm — lower is better
- ✓
Min focus distance
19 cm vs 40 cm — lower is better
- ✓
Diameter
79.6 mm vs 88 mm — lower is better
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
FE 70-200mm F2.8 GM OSS II
Pros
- ✓Extremely lightweight for an f/2.8 telephoto zoom (only 1045g)
- ✓Virtually instantaneous and silent autofocus with 4 XD Linear motors
- ✓Stunning optical performance and contrast across entire range
- ✓Outstanding built-in Optical SteadyShot stabilization
- ✓Dedicated physical aperture ring with click and lock switches
Cons
- –Very high price tag
- –Lens hood is bulky and can block storage space easily
17-28mm F2.8 Di III RXD
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Solid optical performance for the price tier
- ✓Native Leica L mount compatibility
Cons
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the FE 70-200mm F2.8 GM OSS II and 17-28mm F2.8 Di III RXD at major authorized retailers.
Sony FE 70-200mm F2.8 GM OSS II
Tamron 17-28mm F2.8 Di III RXD
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.