Panasonic Leica DG 100-400mm F4.0-6.3 or Panasonic Lumix S 70-300mm F4.5-5.6? Which Panasonic Model to Buy
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The panasonic lumix g leica dg vs lumix s series camera comparison highlights two distinct telephoto options for different system users. Both lenses deliver robust image stabilization and weather sealing for outdoor use. The main difference lies in their sensor formats and mounts. One targets the compact Micro Four Thirds system, while the other serves the larger full-frame L-Mount lineup. You must choose based on your existing camera body and desired reach.
Key differences
| Aspect | Panasonic Leica DG 100-400mm F4.0-6.3 Telephoto Lens | Panasonic Lumix S 70-300mm F4.5-5.6 Macro Lens |
|---|---|---|
| Lens Mount | Micro Four Thirds | L Mount |
| Sensor Format | Micro Four Thirds | Full Frame |
| Focal Length | 100-400mm | 70-300mm |
| Maximum Aperture | F4.0-6.3 | F4.5-5.6 |
| Weight | 2.17 pounds | 1 pounds |
| Macro Capability | 0.25x magnification | 0.5x magnification |
Which one should you choose?
Choose Panasonic Leica DG 100-400mm F4.0-6.3 Telephoto Lens if
- You own a Micro Four Thirds camera and need maximum reach for wildlife.
- You prefer a lens that offers a longer focal length range up to 400mm.
- You want integrated optical image stabilization compatible with Dual I.S. systems.
Choose Panasonic Lumix S 70-300mm F4.5-5.6 Macro Lens if
- You shoot with an L-Mount full-frame camera.
- You need a lighter lens that weighs only one pound.
- You require true macro photography with 0.5x maximum magnification.
Verdict: Choose the Leica DG 100-400mm if you are in the Micro Four Thirds ecosystem and prioritize reach. Pick the Lumix S 70-300mm if you use full-frame L-Mount bodies and value a lighter weight with macro capabilities.
M43 Telephoto vs Full Frame Macro
Sensor format and mount
The Panasonic Leica DG 100-400mm F4.0-6.3 is designed for Micro Four Thirds cameras. This mount uses a smaller sensor format, which provides a 2x crop factor. This means your 400mm reach effectively becomes 800mm in 35mm equivalent terms. The Panasonic Lumix S 70-300mm F4.5-5.6 uses the L Mount system for full-frame sensors. Full-frame sensors capture more light and offer wider fields of view at the same focal length. You must choose the lens that matches your camera body's mount. The Leica DG lens will not fit L Mount cameras, and the Lumix S lens will not fit Micro Four Thirds bodies without an adapter that may affect functionality.
Focal length range
Reach is critical for wildlife and distant subjects. The Leica DG lens offers a 100-400mm range. Due to the Micro Four Thirds crop factor, this covers 200-800mm equivalent. This extended reach allows you to fill the frame with distant birds or animals. The Lumix S lens provides a 70-300mm range on a full-frame sensor. This is equivalent to 70-300mm in 35mm terms. While the Lumix S starts wider, it lacks the extreme telephoto reach of the Leica DG. If you need to shoot subjects from far away, the Leica DG provides more magnification. If you prefer a wider starting point for landscapes or general telephoto work, the Lumix S is suitable.
Macro capability
Versatility matters when shooting close subjects. The Lumix S 70-300mm is explicitly marketed as a macro lens. It achieves a maximum magnification of 0.5x at 300mm. This allows you to get very close to small subjects like flowers or insects while maintaining telephoto compression. The Leica DG 100-400mm lists a maximum magnification of approximately 0.25x, or 0.5x in 35mm equivalent terms. However, its minimum focusing distance is 1.3 meters in full mode. The Lumix S offers true macro performance on a full-frame sensor, providing larger subject detail in the frame. The Leica DG is better suited for distant subjects rather than close-up detail.
Weight and portability
Carrying gear affects your mobility in the field. The Lumix S 70-300mm weighs 1 pound. This lightweight design makes it easy to hold for extended periods or carry on long hikes. The Leica DG 100-400mm weighs 2.17 pounds. It is nearly twice as heavy as the Lumix S. The Leica DG also includes a built-in sliding lens hood and a rotary tripod mount, adding to its bulk. While the Leica DG is praised for being smaller than comparable DSLR lenses, it is still heavier than the Lumix S. If you prioritize a lighter kit for travel or all-day shooting, the Lumix S is the more portable option.
Image stabilization
Stability helps you get sharp images at slow shutter speeds. Both lenses feature advanced stabilization systems. The Leica DG includes Power Optical Image Stabilization and supports Dual I.S. when paired with compatible cameras. This system combines lens and body stabilization for maximum effect. The Lumix S offers powerful image stabilization that compensates for hand shake, enabling shutter speeds up to 5.5 stops slower. Both lenses provide robust stabilization for handheld telephoto shooting. The Lumix S stabilization is rated for a specific stop advantage, while the Leica DG relies on Dual I.S. synergy. Both are excellent for reducing blur, making this a close call for steady shots.
Weather sealing
Outdoor durability protects your investment in harsh conditions. The Leica DG lens features a splash and dustproof sealed body. This protection works when combined with splash and dustproof LUMIX G Mirrorless camera models. The Lumix S lens has a rugged design that is dust, splash, and freeze-resistant. It withstands heavy field use under harsh conditions. Both lenses are built for outdoor photography. The Lumix S explicitly mentions freeze resistance, which is useful in cold environments. The Leica DG offers solid sealing for rain and dust. Both are reliable for nature photography, though the Lumix S includes freeze resistance in its specifications.
Which Panasonic Telephoto Lens Fits You
Micro Four Thirds wildlife shooters
You need extra reach for distant subjects. This lens offers 100-400mm on a Micro Four Thirds mount. The 2x crop factor gives you an 800mm equivalent field of view. It weighs 2.17 pounds and includes Power Optical Image Stabilization. The splash and dustproof body protects you in harsh outdoor conditions while tracking birds or animals.
Full frame landscape and macro users
You shoot with an L-Mount full frame camera and want versatility. This 70-300mm lens covers wide to telephoto ranges. It achieves 0.5x magnification for close-up details at 300mm. The 5.5-stop image stabilization helps in low light. Its dust, splash, and freeze-resistant design ensures reliability during field work across various lighting environments.
Video creators needing smooth focus
You prioritize smooth transitions in your footage. This lens is optimized for video with suppressed focus breathing. It works with all L-Mount full frame cameras. The 70-300mm range provides flexibility for different shots. The 5.5-stop image stabilization reduces hand shake. You get consistent performance whether recording landscapes or close-up subjects in motion.
The products compared
Panasonic Leica DG 100-400mm F4.0-6.3 Telephoto Lens
Best for: outdoor nature photography with Micro Four Thirds cameras
- Lens Mount
- Micro Four Thirds
- Focal Length
- 100-400mm
- Maximum Aperture
- F4.0-6.3
- Sensor Format
- Micro Four Thirds
- Image Stabilization
- Power Optical Image Stabilization
- Minimum Focusing Distance
- 1.3 meter / 4.27 feet
View on Amazon: Panasonic Leica DG 100-400mm F4.0-6.3 Telephoto Lens Affiliate link
This Panasonic LUMIX G lens covers 100 to 400mm on Micro Four Thirds cameras, giving you a 200 to 800mm full-frame equivalent. It weighs 2.17 pounds and seals against dust and moisture. The built-in optical stabilization helps with handheld shots. You get a minimum focusing distance of 1.3 meters for closer subjects. It fits well for nature photography where reach and portability matter.
Pros
- 100-400mm focal length with 200-800mm full-frame equivalent reach
- Splash and dustproof sealed body for outdoor use
- Integrated Power Optical Image Stabilization (O.I.S.)
- Weighs only 2.17 pounds for a lens of this range
Cons
- Variable aperture narrows to F6.3 at the telephoto end
- Minimum focusing distance is 1.3 meters, limiting close-up detail
- No mention of weather sealing compatibility with non-sealed camera bodies
Good fit if
- You need long reach for wildlife or sports on a Micro Four Thirds camera
- You shoot outdoors in dusty or damp conditions
- You value a lighter lens compared to DSLR equivalents
Skip if
- You require a constant wide aperture for low-light performance
- You need to focus on subjects closer than 1.3 meters
- You use a camera body without splash and dustproof sealing
Verdict: Panasonic 100-400mm F4.0-6.3 Lens delivers essential reach for Micro Four Thirds users who prioritize portability and weather resistance over maximum aperture speed.
Panasonic Lumix S 70-300mm F4.5-5.6 Macro Lens
Best for: telephoto macro work on full-frame bodies
- Lens Mount
- L Mount
- Focal Length
- 70-300mm
- Maximum Aperture
- F4.5-5.6
- Sensor Format
- Full Frame
- Color
- Black
- Lens Type
- Macro
View on Amazon: Panasonic Lumix S 70-300mm F4.5-5.6 Macro Lens Affiliate link
The Panasonic LUMIX S 70-300mm is a full-frame telephoto lens for L-mount cameras. It offers a 70-300mm focal length with a maximum aperture of F4.5-5.6. You get macro shooting at 0.5x magnification and 5.5-stop image stabilization. The rugged design resists dust and splash. This lens suits photographers who need reach and versatility in a single package.
Pros
- 70-300mm telephoto range for full-frame L-mount cameras
- 0.5x macro magnification at 300mm
- 5.5-stop image stabilization for handheld shots
- Dust, splash, and freeze-resistant build
Cons
- Variable aperture narrows to F5.6 at full zoom
- Heavier at 1 pound compared to standard primes
- No dedicated weather-sealing gasket details listed for extreme conditions
Good fit if
- You shoot wildlife or sports and need telephoto reach
- You want macro capabilities without carrying a second lens
- You work in harsh outdoor environments
Skip if
- You require a constant wide aperture for low light
- You prioritize lightweight gear for travel
- You use APS-C sensors and need crop factor benefits
Verdict: The Panasonic LUMIX S 70-300mm F4.5-5.6 Lens fits users who need a versatile telephoto macro tool for full-frame L-mount bodies. It delivers solid stabilization and ruggedness for field work.
Specifications side by side
| Spec | Panasonic Leica DG 100-400mm F4.0-6.3 Telephoto Lens | Panasonic Lumix S 70-300mm F4.5-5.6 Macro Lens |
|---|---|---|
| Lens Mount | Micro Four Thirds | L Mount |
| Focal Length | 100-400mm | 70-300mm |
| Maximum Aperture | F4.0-6.3 | F4.5-5.6 |
| Sensor Format | Micro Four Thirds | Full Frame |
| Image Stabilization | Power Optical Image Stabilization | not stated |
| Minimum Focusing Distance | 1.3 meter / 4.27 feet | not stated |
| Color | Black | Black |
| Aperture | f/4.0 | not stated |
| Lens Type | not stated | Macro |
| Dimensions | 1 × 1 × 1 inches | 5.83 × 3.31 × 3.31 inches |
| Weight | 2.17 pounds | 1 pounds |
| Model | H-RS100400 | S-R70300 |
| Size | not stated | 5.50 |
Frequently asked questions
Can I use the Leica DG 100-400mm on full-frame cameras?
No. This lens is built for Micro Four Thirds cameras. It has a smaller sensor format designed for that specific mount. If you use a full-frame body, the lens will not fit or function correctly. You need an L-mount lens for full-frame systems.
Is the Lumix S 70-300mm good for macro photography?
Yes. The product data lists this lens as a Macro Lens. It is designed for telephoto macro work on full-frame bodies. This makes it suitable for close-up shots of small subjects while maintaining a comfortable working distance from the subject.
Which lens is lighter for travel?
The Panasonic Lumix S 70-300mm is lighter. It weighs 1 pound. The Leica DG 100-400mm weighs 2.17 pounds. If you prioritize portability and lower weight for long hikes, the S-mount lens offers a significant advantage in carrying comfort.
Does the Leica DG lens have weather resistance?
Yes. The verdict states it prioritizes weather resistance. It is designed for outdoor nature photography. This feature helps protect the lens from dust and moisture during field use, making it reliable for various environmental conditions.
What is the maximum aperture of the Lumix S 70-300mm?
The maximum aperture is f/4.5 at the wide end. It narrows to f/5.6 at 300mm. This variable aperture range is typical for telephoto zoom lenses. It allows sufficient light intake for most daylight shooting scenarios without needing a flash.
Which lens is better for wildlife photography?
The Leica DG 100-400mm is better for wildlife. It offers 100-400mm reach on a Micro Four Thirds mount. The 2x crop factor gives you an 800mm equivalent field of view. This extra reach helps you capture distant animals without getting too close.
Does the S-mount lens include image stabilization?
Yes. The verdict mentions it delivers solid stabilization. This feature helps reduce blur from camera shake. It is particularly useful when shooting handheld at long focal lengths or in lower light conditions where shutter speeds might otherwise be too slow.

