Sony vs Lumix Lens Weight Comparison (2025): Why I Didn’t Switch Systems
I was only one call away from selling all my Sony gear and moving to Lumix.
On paper, it made sense. Open gate recording, aggressive pricing, and in 2025 everyone seems to be saying the same thing: Lumix lenses are better now. The idea that you don’t really need native Lumix glass anymore gets repeated so often that it starts to feel like fact.
But here’s the problem. I’m already heavily invested in Sony lenses. And I travel a lot. When you live out of a backpack, every gram matters more than spec sheets and YouTube thumbnails.
Instead of trusting reviews or jumping because the internet is excited, I decided to slow down and do something boring. I compared lens weights. Side by side. Category by category. Zooms, primes, travel lenses, the stuff I actually carry.
Not to prove one system is “better”, but to answer a very selfish question: what would this switch really cost me in weight?
Below is that comparison.
Full-Frame Lens Weight Comparison
This comparison focuses purely on weight.
All lenses listed are full-frame, and when multiple versions exist, the latest model is used.
Ultra-Wide Zoom Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 12–24mm f/2.8 GM | 847g | No direct equivalent | — |
| FE 12–24mm f/4 G | 565g | S 14–28mm F4–5.6 MACRO | 345g |
Wide-Angle Zoom Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 16–35mm f/2.8 GM II | 547g | No direct equivalent | — |
| FE 16–35mm f/2.8 GM | 680g | No direct equivalent | — |
| FE PZ 16–35mm f/4 G | 353g | S PRO 16–35mm F4 | 500g |
Standard Zoom Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 20–70mm f/4 G | 488g | S 20–60mm F3.5–5.6 | 350g |
| FE 24–50mm f/2.8 G | 440g | S 24–60mm F2.8 | 544g |
| FE 24–70mm f/2.8 GM II | 695g | S PRO 24–70mm F2.8 | 935g |
| FE 24–70mm f/2.8 GM | 886g | S PRO 24–70mm F2.8 | 935g |
| FE 24–105mm f/4 G OSS | 663g | S 24–105mm F4 MACRO O.I.S. | 680g |
| FE 28–60mm f/4–5.6 | 167g | S 20–60mm F3.5–5.6 | 350g |
| FE 28–70mm f/3.5–5.6 OSS | 295g | S 20–60mm F3.5–5.6 | 350g |
Telephoto Zoom Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 70–200mm f/2.8 GM OSS II | 1045g | S PRO 70–200mm F2.8 O.I.S. | 1570g |
| FE 70–200mm f/4 Macro G OSS II | 794g | S PRO 70–200mm F4 O.I.S. | 985g |
| FE 70–300mm f/4.5–5.6 G OSS | 854g | S 70–300mm F4.5–5.6 MACRO O.I.S. | 790g |
All-in-One Travel Zooms
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| No direct equivalent | — | S 28–200mm F4–7.1 MACRO O.I.S. | 413g |
Ultra-Telephoto Zoom Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 100–400mm f/4.5–5.6 GM OSS | 1395g | No direct equivalent | — |
| FE 200–600mm f/5.6–6.3 G OSS | 2115g | S 100–500mm F5–7.1 O.I.S. | 1285 gm |
Ultra-Wide Prime Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 14mm f/1.8 GM | 460g | No direct equivalent | — |
| FE 20mm f/1.8 G | 373g | S 18mm F1.8 | 340g |
Wide-Angle Prime Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 24mm f/1.4 GM | 445g | S 24mm F1.8 | 310g |
Standard Prime Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 35mm f/1.4 GM | 524g | S 35mm F1.8 | 295g |
| FE 40mm f/2.5 G | 173g | S 35mm F1.8 | 295g |
| FE 50mm f/1.4 GM | 516g | S PRO 50mm F1.4 | 955g |
| FE 50mm f/1.8 | 186g | S 50mm F1.8 | 300g |
| FE 50mm f/2.5 G | 174g | S 50mm F1.8 | 300g |
| FE 55mm f/1.8 ZA | 281g | S 50mm F1.8 | 300g |
Telephoto Prime Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 85mm f/1.4 GM II | 642g | S 85mm F1.8 | 355g |
| FE 85mm f/1.4 GM | 820g | S 85mm F1.8 | 355g |
Macro Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 50mm f/2.8 Macro | ~235g | No direct equivalent | — |
| FE 90mm f/2.8 Macro G OSS | 602g | S 100mm F2.8 MACRO | 298g |
| FE 100mm f/2.8 STF GM OSS | 700g | S 100mm F2.8 MACRO | 298g |
Super-Telephoto Prime Lenses
| Sony Lens | Weight | Lumix Lens | Weight |
|---|---|---|---|
| FE 300mm f/2.8 GM OSS | 1470g | No direct equivalent | — |
| FE 400mm f/2.8 GM OSS | 2895g | No direct equivalent | — |
| FE 600mm f/4 GM OSS | 3040g | No direct equivalent | — |
Travel Kit Weight Examples
“Holy Trinity” Zoom Setup
- Sony
16–35mm f/2.8 GM II + 24–70mm f/2.8 GM II + 70–200mm f/2.8 GM II
Total: 2287g - Lumix
16–35mm f/4 + 24–70mm f/2.8 + 70–200mm f/2.8
Total: 3005g
Sony is 718g lighter (24%) and has faster lens on wide end.
After doing this research, I decided to stay with Sony.
Not because Lumix is bad. It’s not. In fact, in some areas Lumix is doing genuinely impressive work, especially with compact primes and value-focused zooms. The myth that Lumix lenses are “not good enough” in 2025 is exactly that, a myth.
But for my use case, travel-heavy, handheld, long days on my feet, Sony still makes more sense. The gap in key zooms is real. The weight savings compound. A few hundred grams here and there doesn’t sound dramatic until you add them up and carry them across airports, cities, and countries.
This comparison didn’t make me love Sony more. It just reminded me why I chose it in the first place.
Sometimes the smartest decision isn’t switching systems. It’s understanding the one you already own, and why it still works for you.