Panasonic Lumix G VARIO H-FSA100300 100-300mm
The 100-300mm F4.0-5.6 telephoto zoom for Micro Four Thirds (200-600mm equivalent) pairs Power O.I.S. with 5-stop stabilization and weather sealing for handheld outdoor shooting. Its 520g weight and compact build make it a portable alternative to bulky DSLR telephotos, while fast autofocus ensures precise subject tracking. This lens is best for wildlife and travel photographers who need reach and image stabilization in a lightweight, weather-resistant package.
Snapshot
The 30-Second Version
Price is up about 17% to $548-$850. New rivals like the Sigma 16-300mm and Tamron 18-300mm offer more reach, while the Canon RF 15-35mm f/2.8L raises the ceiling on image quality. Still a dependable, sharp zoom, but the field is more crowded now.
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
- Q2 2026100/100
Buyers praise this lens as excellent value for its price, highlighting sharpness, stabilization, and build quality for daytime wildlife and aircraft photography.
- Excellent value for price, best in class for Micro 4/3 telephoto.
- Great image clarity and stabilization, especially with hybrid OIS/IBIS.
- Solid build, no zoom creep, good weather sealing, lightweight.
- Low light performance challenging; sharpness drops at full zoom.
- Q3 2020100/100
All three reviews are highly positive, praising the lens as a great workhorse for video and a perfect telephoto for birding photography.
- Lens is a great workhorse for BMPCC4K video shoots.
- Excellent for bird photography with tele conversion up to 1200mm.
- Lightweight, splash/dust proof, and includes useful stabilization switch.
- Highly recommended by all reviewers for its performance and value.
- Q2 201867/100
Buyers report mixed experiences: some praise sharpness and build, while others cite persistent soft focus and potential damage from poor packaging.
- Improved sharpness, smoother operation, and compact design praised by some users.
- Soft focus and rare sharp images reported, even under stable conditions.
- Potential damage from poor packaging during shipping may affect lens performance.
- Image stabilization performance questioned; Nikon lens produced sharper results in comparison.
- Q1 201884/100
Buyers praised the lens as a compact, sharp upgrade over older models, with excellent stabilization and value, though some noted softness at full zoom and slower autofocus.
- Sharpness and image quality are good for the price, especially compared to older lenses.
- Dual image stabilization is incredible, making it an easy choice over the previous model.
- Lacks sharpness at 300mm range compared to the 100-400mm Leica; autofocus a bit slow.
- Focus point moves around at full zoom; some issues expected to be fixed with firmware.
- Q2 201793/100
Buyers praised the lens as a light, compact tele zoom with good image quality and effective stabilization, ideal for travel.
- Lightweight and compact design, perfect for travel.
- Effective image stabilization, enabling handheld shots.
- Good value and quality for the price.
- Suitable for travel photography with good telephoto reach.
Based on 39 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Telephoto |
| Focal Length Min | 100 |
| Focal Length Max | 300 |
| Elements | 17 |
| Groups | 12 |
| ED Elements | 1 |
| Coating | Power O.I.S. |
Aperture
| Max Aperture | f/22 |
| Min Aperture | 4.0-5.6 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | Micro Four Thirds |
| Format | micro-four-thirds |
| Weather Sealed | Yes |
| Weight | 0.5 kg / 1.2 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | 240 fps linear motor |
| Stabilization | Yes |
| Stabilization Stops | 5 |
Focus
| Min Focus Distance | 1500 |
| Max Magnification | 0.21x |
vs Competition
The competitive set has shuffled noticeably. The Sigma Contemporary 16-300mm f/3.5-6.7 DC OS now sits in the top five and brings an enormous zoom range that makes this lens look almost prime-like by comparison. The Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD also enters the picture for APS-C mirrorless shooters who want a single-lens solution, and its autofocus speed is genuinely impressive. On the higher end, the Canon RF 15-35mm f/2.8L IS USM has moved into the top five, reminding everyone what constant-aperture L-series glass can do, though it costs significantly more. The Panasonic LUMIX G Leica DG Vario-Elmarit H-ES50200 and Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR round out the new arrivals, both offering different trade-offs in reach and stabilization. Several previous top-five contenders have dropped off the list, which says more about how quickly the mid-range zoom market is evolving than about any single lens falling behind.
| Spec | Panasonic Lumix G VARIO H-FSA100300 100-300mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR Z 17-28mm f/2.8 | Sony E 18-135mm f/3.5-5.6 OSS | Viltrox Pro AF 27mm f/1.2 |
|---|---|---|---|---|---|---|
| Focal Length | 100-300mm | 28-300mm | 18-50mm | 17-28mm | 18-135mm | 27mm |
| Max Aperture | f/22 | f/4 | f/2.8 | f/2.8 | f/3.5 | f/1.2 |
| Mount | Micro Four Thirds | Sony E | Sony E | Nikon Z | Sony E | Sony E |
| Stabilization | true | true | false | false | true | false |
| Weather Sealed | true | true | true | true | false | true |
| Weight (g) | 522 | 590 | 290 | 450 | 326 | 560 |
| AF Type | 240 fps linear motor | VXD linear motor | stepping motor | Stepping Motor | Linear motor | STM |
| Lens Type | telephoto | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Panasonic Lumix G VARIO H-FSA100300 100-300mm | 98 | 13.2 | 69.8 | 29.6 | 79.8 | 20.2 | 44.7 | 81.9 | 85.5 | 96.9 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 77.9 | 65.1 | 85.8 | 96.7 | 66 | 91.2 | 97.7 | 55.8 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.8 | 81.8 | 86 | 91.7 | 82.2 | 83.9 | 80.9 | 78.6 | 89.8 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.8 | 87 | 75.2 | 85.8 | 88.2 | 83.9 | 91.2 | 68 | 69.8 | 36.8 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.4 | 72.5 | 40.3 | 78.5 | 77.3 | 44.7 | 95.8 | 89.8 | 82.4 |
| Viltrox Pro AF 27mm f/1.2 Compare | 86.8 | 98.5 | 67.4 | 38.5 | 82.2 | 98.6 | 91.2 | 33.6 | 89.8 | 36.8 |
Price
Value & Pricing
The price has shifted upward, now ranging from $548 to $850 depending on the mount and retailer. That is a roughly 17% increase over the previous window, which pushes it out of casual impulse-buy territory. You still get a lot of glass for the money, and the build quality holds up against lenses that cost more, but the value proposition is tighter than it was. If you can catch it on sale near the lower end of that range, it remains a strong deal. At full retail near $850, you should cross-shop carefully.
Best Buy 5 offers From $405
Amazon 2 offers From $593
Newegg 1 offer From $610
Adorama 1 offer From $748
Price History
Read more
Verdict
This lens still delivers where it counts: sharpness, reliable autofocus, and a focal range that covers most everyday shooting without forcing a lens swap. The price increase stings a little, and the arrival of strong competitors like the Sigma 16-300mm and Tamron 18-300mm means you have more alternatives than before. If you already own it, there is no reason to jump ship. If you are buying new, weigh the extra reach and newer stabilization systems on those competitors against this lens's proven optical consistency and handling. It remains a smart pick, just not the automatic one it was six months ago.
