Sony
FE 300mm F4.5-5.6 G OSS
Sony E Mount
Compact 300mm full-frame telephoto at 1640g with 5.5-stop OSS and linear AF.
$1,399
Launch priceReleased Sep 2024
Tamron
28-75mm F2.8 Di III VXD G2
Sony E Mount
An incredibly popular third-party zoom updated with vastly improved sharpness and autofocus.
$899
Launch priceReleased Aug 2021
FE 300mm F4.5-5.6 G OSS is 3.1 years newer.
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Wins
FE 300mm F4.5-5.6 G OSS
Wins
28-75mm F2.8 Di III VXD G2
TL;DR — Key differences
- AFE 300mm F4.5-5.6 G OSS has higher OIS effectiveness (5.5 stops vs 0 stops)
- B28-75mm F2.8 Di III VXD G2 has lower Min focus distance (18 cm vs 150 cm)
- B28-75mm F2.8 Di III VXD G2 has lower Weight (540 g vs 1640 g)
- B28-75mm F2.8 Di III VXD G2 has lower Length (118 mm vs 209.5 mm)
- B28-75mm F2.8 Di III VXD G2 has lower Max aperture (Wide) (f/2.8 vs f/4.5)
Key specs at a glance
Size and weight, to scale
FE 300mm F4.5-5.6 G OSS
⌀89 × 210 mm
1640 g (3.62 lb / 57.85 oz)
Credit card
85.6 × 54 mm
for scale
28-75mm F2.8 Di III VXD G2
⌀76 × 118 mm
540 g (1.19 lb / 19.05 oz)
FE 300mm F4.5-5.6 G OSS is 92mm longer and 13mm wider than 28-75mm F2.8 Di III VXD G2.
FE 300mm F4.5-5.6 G OSS is 1100 g heavier than 28-75mm F2.8 Di III VXD G2.
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 300mm F4.5-5.6 G OSS
- ✓
Special elements
Adds 2 ED, 1 Super ED
- ✓
OIS effectiveness
5.5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only FE 300mm F4.5-5.6 G OSS supports it
- ✓
Control ring
Only FE 300mm F4.5-5.6 G OSS supports it
Reasons to choose the 28-75mm F2.8 Di III VXD G2
- ✓
Special elements
Adds 2 LD, 2 GM
- ✓
Min focus distance
18 cm vs 150 cm — lower is better
- ✓
Weight
540 g vs 1640 g — lower is better
- ✓
Length
118 mm vs 209.5 mm — lower is better
- ✓
Max aperture (Wide)
f/2.8 vs f/4.5 — lower is better
- ✓
Max aperture (Tele)
f/2.8 vs f/4.5 — lower is better
- ✓
Diameter
76 mm vs 89 mm — lower is better
- ✓
Max magnification
0.37 × vs 0.31 × — higher is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
FE 300mm F4.5-5.6 G OSS
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Relatively heavy for extended handheld use
- –Slower maximum aperture limits low-light performance
28-75mm F2.8 Di III VXD G2
Pros
- ✓Superb value for money compared to first-party options
- ✓Excellent sharpness throughout the range, even at f/2.8
- ✓Very lightweight and compact (only 540g)
- ✓Fast VXD linear motor focus drive
- ✓Customizable lens functions via Tamron Lens Utility software
Cons
- –Starts at 28mm instead of the wider 24mm standard
- –Slightly weaker corner sharpness at 75mm wide open
- –Weather sealing is basic compared to Sony GM lenses
Decided which one is right for you?
Compare live prices for the FE 300mm F4.5-5.6 G OSS and 28-75mm F2.8 Di III VXD G2 at major authorized retailers.
Sony FE 300mm F4.5-5.6 G OSS
Tamron 28-75mm F2.8 Di III VXD G2
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.