f/2.8 vs f/4.0 Mirrorless Cameras in 2026: Key Differences
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This guide compares the f28 vs f40 mirrorless camera options available in 2026. You are looking at two distinct approaches to photography. Both models record 4K video and include built-in stabilization. The primary difference lies in their optical design and sensor configuration. One uses a fixed lens with a wider minimum aperture, while the other offers interchangeable lenses with a narrower starting aperture. You need to decide which system fits your shooting style.
Key differences
| Aspect | Panasonic LUMIX FZ80 60X Zoom Camera | OM System PEN Dual-Lens Mirrorless Camera |
|---|---|---|
| Aperture | f/2.8 | f/4.0 |
| Lens Configuration | Fixed 60x zoom | Interchangeable lenses |
| Sensor Resolution | 18.1 MP | not listed |
| Autofocus | not listed | 121-point all-cross phase-detection |
| Weight | 1.36 pounds | 393g body |
Which one should you choose?
Choose Panasonic LUMIX FZ80 60X Zoom Camera if
- You want a single camera with a massive zoom range without changing lenses.
- You prefer a fixed aperture of f/2.8 for slightly better low-light performance at the wide end.
- You need a simple point-and-shoot workflow with high-resolution video capture.
Choose OM System PEN Dual-Lens Mirrorless Camera if
- You value interchangeable lenses for flexibility in focal length and aperture.
- You want advanced autofocus features like AI detection for people and pets.
- You prioritize a lighter, more compact body for everyday carry.
Verdict: Choose the Panasonic if you need extreme zoom reach and a fixed, wide aperture in a single package. Select the OM System if you want interchangeable lenses and modern autofocus tracking. Your choice depends on whether you prioritize zoom versatility or lens flexibility.
Aperture and Lens Flexibility Analysis
Aperture Range
The Panasonic LUMIX FZ80 features a variable aperture starting at f/2.8, which allows more light into the sensor in lower light conditions compared to the OM System PEN kit. The OM System includes a 40-150mm lens with a maximum aperture of f/4.0 at the wide end. While f/2.8 is wider, the Panasonic aperture narrows to f/5.0 at full zoom. The OM System lens also varies, reaching f/5.6 at 150mm. You get a brighter starting point with the Panasonic, but both systems adjust as you zoom in. The OM System offers a dedicated telephoto lens with a consistent f/4.0 start for portrait-style work.
Lens Configuration
The Panasonic LUMIX FZ80 uses a single 60x zoom lens covering 20-1200mm. This all-in-one design eliminates the need to change lenses, making it highly practical for travel and wildlife. The OM System PEN is a mirrorless camera with interchangeable lenses. It comes with two lenses: a 14-42mm standard zoom and a 40-150mm telephoto. This dual-lens kit provides optical flexibility and potentially better image quality per lens than a superzoom. You can swap lenses for different creative needs. The Panasonic prioritizes convenience with one lens, while the OM System prioritizes versatility through interchangeable optics.
Sensor Resolution
The Panasonic LUMIX FZ80 utilizes an 18.1-megapixel MOS sensor. This resolution is sufficient for standard prints and digital use. The OM System PEN does not list its sensor megapixel count in the provided data. Without this specific number, we cannot directly compare the resolution potential between the two cameras. Both produce 4K video, which requires significant sensor data. You must check the OM System specifications elsewhere to see if its sensor offers higher resolution than the 18.1MP found in the Panasonic. For now, the Panasonic has a known, fixed resolution value.
Video Capabilities
Both cameras support 4K video recording. The Panasonic LUMIX FZ80 records 4K QFHD video at 30 frames per second. It also offers unique 4K photo modes to extract still images from video. The OM System PEN supports 4K and vertical video recording. It uses a 121-point all-cross phase-detection autofocus system to maintain sharp focus during video. This advanced autofocus is likely superior for tracking moving subjects in video compared to the Panasonic. Both meet the 4K requirement, but the OM System offers more sophisticated focusing technology for moving subjects.
Connectivity Options
The Panasonic LUMIX FZ80 includes Wi-Fi connectivity for transferring images to mobile devices. It also features USB charging and multiple ports including Micro USB and HDMI. The OM System PEN does not list specific connectivity ports or wireless standards in the provided data. We know it is a modern mirrorless camera, but we cannot confirm if it has Wi-Fi, Bluetooth, or USB-C without further data. The Panasonic provides a clear list of connection options. You have confirmed access to digital workflows with the Panasonic. The OM System connectivity remains undefined in this dataset.
Which f/2.8 or f/4.0 camera suits you
Travelers wanting one lens for everything
The Panasonic LUMIX FZ80 offers a 60x zoom range, covering 20 to 1220mm. This allows you to capture distant subjects without changing glass. It records 4K video at 30 fps and includes Wi-Fi for easy transfers. The fixed lens design simplifies your travel kit significantly.
Photographers prioritizing image quality and portability
The OM System PEN features a compact 393g body with interchangeable lenses. It includes AI autofocus for human and pet detection. The kit provides two lenses for versatile shooting. Built-in stabilization helps with handheld shots, while the 121-point phase-detection system ensures sharp focus in various conditions.
Users needing advanced autofocus for action
This model uses a 121-point all-cross phase-detection autofocus system. It specifically detects humans and pets to keep subjects sharp. You get 4K video recording with fast focusing. The interchangeable lens system allows you to adapt to different shooting scenarios, from wide landscapes to telephoto portraits.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Panasonic LUMIX FZ80 60X Zoom Camera | Travelers needing extreme zoom reach | Check price of Panasonic LUMIX FZ80 60X Zoom Camera on Amazon |
| 2 | OM System PEN Dual-Lens Mirrorless Camera | travelers seeking lightweight versatility | Check price of OM System PEN Dual-Lens Mirrorless Camera on Amazon |
The products compared
Panasonic LUMIX FZ80 60X Zoom Camera
Best for: Travelers needing extreme zoom reach
- Aperture
- f/2.8 (what this guide is about)
- Sensor Resolution
- 18.1 MP
- Image Stabilization
- Power O.I.S.
- Video Resolution
- 4K at 30 fps
- Connectivity
- Wi-Fi
- Color
- Black
View on Amazon: Panasonic LUMIX FZ80 60X Zoom Camera Affiliate link
This point-and-shoot camera features an 18.1-megapixel sensor and a 60x zoom lens with an f/2.8 wide aperture. It records 4K video at 30 fps and includes Power O.I.S. for stabilization. The 3-inch LCD and electronic viewfinder offer clear framing. Wi-Fi connectivity and USB charging add convenience for travel and sharing photos.
Pros
- 60x zoom lens with f/2.8 aperture
- 18.1-megapixel MOS sensor
- 4K video recording at 30 fps
- Power O.I.S. image stabilization
Cons
- Variable aperture narrows to f/5.0 at full zoom
- Smaller 1/2.3-inch sensor limits low-light performance
- No weather sealing mentioned in specifications
Good fit if
- You need extreme zoom reach for distant subjects
- You want a lightweight, portable travel camera
- You prefer simple point-and-shoot operation
Skip if
- You require interchangeable lenses for creative control
- You need professional-grade low-light capabilities
- You shoot primarily in harsh weather conditions
Verdict: Panasonic LUMIX FZ80 60x Zoom Camera suits travelers who prioritize reach and convenience over interchangeable lens flexibility. It delivers solid 4K video and a versatile zoom range in a compact body.
OM System PEN Dual-Lens Mirrorless Camera
Best for: travelers seeking lightweight versatility
- Aperture
- f/4.0 (what this guide is about)
- Autofocus System
- 121-point all-cross phase-detection
- Image Stabilization
- Built-In Image Stabilization
- Video Resolution
- 4K
- Included Lens
- 14-42mm Lens
- Color
- Black
View on Amazon: OM System PEN Dual-Lens Mirrorless Camera Affiliate link
This OM System Pen Black mirrorless camera offers a compact 393g body with built-in image stabilization. It includes a 14-42mm f/3.5-5.6 lens and a 40-150mm f/4.0-5.6 lens. The 121-point all-cross phase-detection autofocus supports 4K video. You get AI human and pet detection for sharper shots. This kit suits travelers needing versatile focal lengths in a lightweight package.
Pros
- Compact 393g body for easy carrying
- Built-in image stabilization for steadier handheld shooting
- 121-point all-cross phase-detection autofocus system
- Includes 40-150mm f/4.0-5.6 telephoto lens
- AI Human and Pet Detection autofocus
Cons
- Variable aperture ranges from f/3.5 to f/5.6 on the wide lens
- Telephoto lens aperture varies to f/5.6 at full zoom
- Fixed lens kit limits professional interchangeable lens flexibility
Good fit if
- You want a lightweight travel camera under 400g
- You need versatile zoom coverage from wide to telephoto
- You shoot 4K video with reliable phase-detection autofocus
Skip if
- You require a constant f/2.8 aperture throughout the zoom range
- You prefer a larger, heavier body for better grip
- You need a dedicated professional telephoto lens with wider aperture
Verdict: OM System Pen Black f/4.0 Kit balances portability with a versatile dual-lens setup. It fits travelers who prioritize a compact 393g form factor and reliable 4K autofocus over maximum aperture speed.
Specifications side by side
| Spec | Panasonic LUMIX FZ80 60X Zoom Camera | OM System PEN Dual-Lens Mirrorless Camera |
|---|---|---|
| Sensor Resolution | 18.1 MP | not stated |
| Autofocus System | not stated | 121-point all-cross phase-detection |
| Image Stabilization | Power O.I.S. | Built-In Image Stabilization |
| Video Resolution | 4K at 30 fps | 4K |
| Included Lens | not stated | 14-42mm Lens |
| Connectivity | Wi-Fi | not stated |
| Color | Black | Black |
| Aperture | f/2.8 | f/4.0 |
| Lens Type | Zoom | not stated |
| Focus Type | not stated | Autofocus |
| Dimensions | 4.69 × 5.13 × 3.71 inches | 9.35 × 7.5 × 5.5 inches |
| Weight | 1.36 pounds | 3.93 pounds |
| Size | 4.7 x 5.1 x 3.7 inches | Compact |
| Model | DC-FZ80K | V210082BU000 |
Frequently asked questions
Does an f/2.8 lens perform better in low light?
Yes, an f/2.8 aperture lets in more light than f/4.0. This helps you capture brighter images in dim environments without raising the ISO as high. The Panasonic LUMIX FZ80 uses this wider aperture to support its 60x zoom range, making it useful for travelers shooting in varied lighting.
Is the OM System PEN suitable for beginners?
It offers a compact form factor that is easy to handle. The camera weighs only 393g and includes a dual-lens setup for versatility. It features reliable 4K autofocus, which simplifies getting sharp shots. This balance of portability and ease of use makes it a practical choice for new photographers.
How does the zoom range differ between these models?
The Panasonic LUMIX FZ80 provides a 60x zoom range, covering 20 to 1220mm. This allows you to capture distant subjects without changing lenses. The OM System PEN uses a 14-42mm lens paired with a 40-150mm lens, offering flexibility but requiring lens swaps for different focal lengths.
Can I shoot 4K video with an f/4.0 camera?
Yes, the OM System PEN records 4K video despite its f/4.0 aperture. It includes built-in stabilization to keep footage steady. While the wider aperture of the Panasonic model may offer slight advantages in dark scenes, the OM System delivers solid video performance for most travel and everyday scenarios.
Which camera is lighter for travel?
The OM System PEN is designed for portability with a compact size and a weight of 393g. The Panasonic LUMIX FZ80 weighs 1.36 pounds and measures 4.7 x 5.1 x 3.7 inches. If minimizing weight is your priority, the OM System offers a more lightweight option for long days out.
Do both cameras include Wi-Fi connectivity?
The Panasonic LUMIX FZ80 includes built-in Wi-Fi for transferring images and videos. The provided data does not explicitly list Wi-Fi for the OM System PEN. You should check the specific connectivity features of the OM System model if wireless transfer is a critical requirement for your workflow.
Is f/2.8 better for portrait photography?
A wider aperture like f/2.8 creates a shallower depth of field, blurring the background more effectively. This separates the subject from the surroundings. The Panasonic LUMIX FZ80 offers this f/2.8 capability, which can help you achieve pleasing background blur in portrait shots compared to the narrower f/4.0 aperture.