Fujifilm
XF 100-400mm F4.5-5.6 R LM OIS WR
Fujifilm X Mount
XF 100-400mm F4.5-5.6 R LM OIS WR — 100–400mm f/4.5-5.6 for Fujifilm X, a popular choice in the fujifilm lineup.
$1,899
Launch priceReleased Jan 2016
Fujifilm
XF 50-140mm F2.8 R LM OIS WR
Fujifilm X Mount
XF 50-140mm F2.8 R LM OIS WR — 50–140mm f/2.8 for Fujifilm X, a popular choice in the fujifilm lineup.
$1,599
Launch priceReleased Jun 2014
XF 100-400mm F4.5-5.6 R LM OIS WR is 1.6 years newer.
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Wins
XF 100-400mm F4.5-5.6 R LM OIS WR
Wins
XF 50-140mm F2.8 R LM OIS WR
4 categories tied
TL;DR — Key differences
- BXF 50-140mm F2.8 R LM OIS WR has lower Max aperture (Tele) (f/2.8 vs f/5.6)
- BXF 50-140mm F2.8 R LM OIS WR has lower Max aperture (Wide) (f/2.8 vs f/4.5)
- BXF 50-140mm F2.8 R LM OIS WR has lower Weight (995 g vs 1375 g)
- BXF 50-140mm F2.8 R LM OIS WR has lower Length (189 mm vs 243 mm)
Key specs at a glance
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 XF 100-400mm F4.5-5.6 R LM OIS WR
No major spec wins compared to XF 50-140mm F2.8 R LM OIS WR.
Reasons to choose the XF 50-140mm F2.8 R LM OIS WR
- ✓
Max aperture (Tele)
f/2.8 vs f/5.6 — lower is better
- ✓
Max aperture (Wide)
f/2.8 vs f/4.5 — lower is better
- ✓
Weight
995 g vs 1375 g — lower is better
- ✓
Length
189 mm vs 243 mm — lower is better
Shared specifications
Min focus distance
Both 38 cm
Max magnification
Both 0.25 ×
Internal focus
Both support internal focus
Optical stabilization
Both support optical stabilization
OIS effectiveness
Both 5 stops
Diameter
Both 70 mm
Pros & cons at a glance
Editorially curated highlights and trade-offs.
XF 100-400mm F4.5-5.6 R LM OIS WR
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓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
XF 50-140mm F2.8 R LM OIS WR
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Relatively heavy for extended handheld use
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the XF 100-400mm F4.5-5.6 R LM OIS WR and XF 50-140mm F2.8 R LM OIS WR at major authorized retailers.
Fujifilm XF 100-400mm F4.5-5.6 R LM OIS WR
Fujifilm XF 50-140mm F2.8 R LM OIS WR
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.