Canon
RF 85mm F1.4 L VCM
Canon RF Mount
Hybrid L-series 85mm with VCM autofocus, manual iris ring, and weather sealing.
$1,649
Launch priceReleased Feb 2025
Sony
FE 300mm F2.8 GM OSS
Sony E Mount
World's lightest 300mm F2.8 — 1470g with XD Linear AF, OSS, and G Master resolution.
$6,999
Launch priceReleased Jan 2024
RF 85mm F1.4 L VCM is 1 year newer.
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Wins
RF 85mm F1.4 L VCM
Wins
FE 300mm F2.8 GM OSS
Which would you choose?
TL;DR — Key differences
- BFE 300mm F2.8 GM OSS has higher OIS effectiveness (5 stops vs 0 stops)
- ARF 85mm F1.4 L VCM has lower Length (99.3 mm vs 265 mm)
- ARF 85mm F1.4 L VCM has lower Min focus distance (75 cm vs 200 cm)
- ARF 85mm F1.4 L VCM has lower Weight (636 g vs 1470 g)
- ARF 85mm F1.4 L VCM has lower Max aperture (Wide) (f/1.4 vs f/2.8)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share
RF 85mm F1.4 L VCM
⌀77 × 99 mm
636 g (1.40 lb / 22.43 oz)
Credit card
85.6 × 54 mm
for scale
FE 300mm F2.8 GM OSS
⌀124 × 265 mm
1470 g (3.24 lb / 51.85 oz)
RF 85mm F1.4 L VCM is 166mm shorter and 48mm narrower than FE 300mm F2.8 GM OSS.
RF 85mm F1.4 L VCM is 834 g lighter than FE 300mm F2.8 GM OSS.
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 RF 85mm F1.4 L VCM
- ✓
Special elements
Adds 1 UD, 1 Aspherical
- ✓
Length
99.3 mm vs 265 mm — lower is better
- ✓
Min focus distance
75 cm vs 200 cm — lower is better
- ✓
Weight
636 g vs 1470 g — lower is better
- ✓
Max aperture (Wide)
f/1.4 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.4 vs f/2.8 — lower is better
- ✓
Diameter
76.5 mm vs 124 mm — lower is better
Reasons to choose the FE 300mm F2.8 GM OSS
- ✓
Special elements
Adds 3 Super ED, 1 ED
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only FE 300mm F2.8 GM OSS supports it
- ✓
Max magnification
0.16 × vs 0.12 × — higher is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
RF 85mm F1.4 L VCM
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Third-party or older alternatives may offer better value
FE 300mm F2.8 GM OSS
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Premium price point
- –Relatively heavy for extended handheld use
Decided which one is right for you?
Compare live prices for the RF 85mm F1.4 L VCM and FE 300mm F2.8 GM OSS at major authorized retailers.
Canon RF 85mm F1.4 L VCM
Sony FE 300mm F2.8 GM OSS
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.