Panasonic
LUMIX S 100-400mm F5-6.3
Leica L Mount
LUMIX S 100-400mm F5-6.3 — 100–400mm f/5-6.3 for Leica L, a popular choice in the panasonic lineup.
$1,299
Launch priceReleased Jan 2024
Panasonic
LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
Leica L Mount
LUMIX S 70-300mm F4.5-5.6 Macro O.I.S. — 70–300mm f/4.5-5.6 for Leica L, a popular choice in the panasonic lineup.
$1,249
Launch priceReleased Apr 2021
LUMIX S 100-400mm F5-6.3 is 2.7 years newer.
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Wins
LUMIX S 100-400mm F5-6.3
Wins
LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
Which would you choose?
TL;DR — Key differences
- BLUMIX S 70-300mm F4.5-5.6 Macro O.I.S. has lower Min focus distance (28 cm vs 130 cm)
- BLUMIX S 70-300mm F4.5-5.6 Macro O.I.S. has higher Max magnification (1 × vs 0.25 ×)
- BLUMIX S 70-300mm F4.5-5.6 Macro O.I.S. has lower Length (161 mm vs 205.5 mm)
- BLUMIX S 70-300mm F4.5-5.6 Macro O.I.S. has lower Weight (790 g vs 985 g)
- BLUMIX S 70-300mm F4.5-5.6 Macro O.I.S. has lower Max aperture (Tele) (f/5.6 vs f/6.3)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareLUMIX S 100-400mm F5-6.3
⌀83 × 206 mm
985 g (2.17 lb / 34.74 oz)
Credit card
85.6 × 54 mm
for scale
LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
⌀81 × 161 mm
790 g (1.74 lb / 27.87 oz)
LUMIX S 100-400mm F5-6.3 is 45mm longer and 2mm wider than LUMIX S 70-300mm F4.5-5.6 Macro O.I.S..
LUMIX S 100-400mm F5-6.3 is 195 g heavier than LUMIX S 70-300mm F4.5-5.6 Macro O.I.S..
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 LUMIX S 100-400mm F5-6.3
- ✓
Special elements
Adds 2 ED, 1 UED
- ✓
OIS effectiveness
5.5 stops vs 5 stops — higher is better
Reasons to choose the LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
- ✓
Special elements
Adds Aspherical
- ✓
Min focus distance
28 cm vs 130 cm — lower is better
- ✓
Max magnification
1 × vs 0.25 × — higher is better
- ✓
Length
161 mm vs 205.5 mm — lower is better
- ✓
Weight
790 g vs 985 g — lower is better
- ✓
Max aperture (Tele)
f/5.6 vs f/6.3 — lower is better
- ✓
Max aperture (Wide)
f/4.5 vs f/5 — lower is better
- ✓
Diameter
81 mm vs 83 mm — lower is better
Shared specifications
Internal focus
Both support internal focus
Optical stabilization
Both support optical stabilization
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.
LUMIX S 100-400mm F5-6.3
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
LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
Pros
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Leica L mount compatibility
Cons
- –Slower maximum aperture limits low-light performance
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the LUMIX S 100-400mm F5-6.3 and LUMIX S 70-300mm F4.5-5.6 Macro O.I.S. at major authorized retailers.
Panasonic LUMIX S 100-400mm F5-6.3
Panasonic LUMIX S 70-300mm F4.5-5.6 Macro O.I.S.
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.