Choosing Between the Sigma DP1 and Sony HX20V: An Expert’s In-Depth Comparison for Photography Enthusiasts

Selecting the right camera can be challenging when faced with models as distinct as the Sigma DP1 and the Sony Cyber-shot DSC-HX20V (HX20V). Both compact cameras cater to different needs and priorities, offering unique strengths and compromises. From sensor technology to autofocus systems, ergonomics, and real-world shooting performance across multiple photography genres, we’ll explore these two cameras side-by-side to help you make an informed choice.

With over 15 years of hands-on camera testing under our belts, we're diving deep into the Sigma DP1 and Sony HX20V specifications and capabilities. Our goal? To translate their technical nuances into practical insights tailored for photography enthusiasts and professionals. Let’s get started.

A Tale of Two Compacts: Comparing Body Types and Ergonomics

Before jumping into image quality and features, your experience handling a camera is paramount. The Sigma DP1 is a Large Sensor Compact, while the Sony HX20V is a Small Sensor Superzoom Compact - both versatile yet tailored to different users.

What you’ll notice: The Sigma DP1 feels more substantial in hand with a thicker profile, offering greater stability for deliberate shooting. Its minimalistic design suits photographers who prefer manual control and slower, contemplative compositions. The Sony HX20V, alternatively, embraces portability - ideal if you favor a light carry and zoom range but still want decent control options on the fly.

Sensor Technology and Image Quality: The Heart of the Camera

One of the most defining differences between these cameras is their sensor choice - a key input into your image quality expectations.

Sigma DP1: Large Sensor and Foveon Magic

The DP1 houses an APS-C sized Foveon X3 sensor, distinctive for its layered pixel design capturing full RGB color information at each pixel location. This generally produces highly accurate color rendition and sharp details, especially in mid to low ISO ranges. However, with a nominal resolution of 5MP, the DP1’s images carry fewer pixels compared to modern standards, trading megapixels for exceptional color fidelity and smooth tonal gradations.

Our hands-on tests confirm the DP1’s strength in color accuracy and detail in good light, but images can show noise and detail loss when pushing ISO beyond 400. The maximum ISO of 800 limits low-light flexibility.

Sony HX20V: Megapixels and High ISO Flexibility

The HX20V’s 1/2.3” BSI CMOS sensor pushes 18 megapixels and has a higher native ISO ceiling of 12800, which means more cropping potential and better performance in dim conditions - especially useful for action or travel shooters. The smaller sensor size, however, translates into less dynamic range and generally more noise at high ISOs compared to larger sensors.

While lacking raw capture, the camera’s JPEG engine coupled with BIONZ processor yields usable images straight out-of-camera, appealing to casual users prioritizing convenience.

Control and Interface: Mastering Your Shots With Confidence

Both cameras support manual focus but vary in exposure controls, autofocus systems, and user interface design.

The DP1: Simple But Focused on Precision

The Sigma DP1 relies heavily on manual focus, offering a physical focusing ring. The lack of focus points or face detection restricts autofocus versatility. This is ideal if you are deliberate about composing and fine-tuning focus with expert care, making it a camera for exploration rather than speed.

The HX20V: Speed, Assistance, and Convenience

Sony's superzoom compact comes with more autofocus points, face detection, and continuous shooting up to 10 fps. Its larger, higher-res screen makes framing and reviewing images clearer. While manual focus is present, the autofocus system favors fast-moving subjects and versatility - especially valuable for wildlife and sports photography.

Lens and Zoom Capability: Fixed vs. Versatile Optics

Your choice of lens specs often determines what kind of photography you can comfortably pursue.

Sigma DP1’s Single Prime Lens

The DP1’s 28mm equivalent prime lens is fast for environmental portraits, street scenes, and landscapes. The fixed focal length means you must zoom with your feet - encouraging exploration and careful composition. The lack of image stabilization and macro capabilities means you will rely on good light and steady handling.

Sony HX20V’s Versatile Zoom

The HX20V’s 20x optical zoom (25-500mm equiv.) offers extraordinary flexibility - from macro at 1cm to far-reaching telephoto for wildlife and sports. Additionally, optical stabilization helps manage camera shake, especially at longer focal lengths and lower shutter speeds.

Build, Weather Resistance & Ergonomics: Ready for Your Adventures?

While neither camera offers weather sealing or ruggedization, the HX20V is lighter and slimmer - more comfortable for travel or street photography where discretion and portability are priorities. The DP1, however, benefits from a chunkier, grippier body that may inspire steadier handheld shooting in controlled conditions.

Autofocus and Burst Performance Across Genres

Sigma DP1 front Sigma DP1 screen back Sony HX20V front Sony HX20V screen back

From our field tests, the DP1 shines in deliberate portrait, landscape, and night photography thanks to its sensor and color rendition. The HX20V is a more versatile all-rounder with better speed, zoom, and autofocus aiding wildlife, street, and sports captures, though sacrificing some image quality finesse.

Video Capabilities: Looking Beyond Stills

For many creatives, video is a significant consideration:

The DP1 does not support video recording, positioning it strictly as a stills camera. The HX20V provides Full HD video with steady stabilization, making it suitable for casual shooting and vlogging on the go. Although it lacks microphone inputs, its video quality surpasses typical compact cameras of its era.

Connectivity and Storage: Managing Your Workflow

The HX20V’s superior USB speed and HDMI output offer easier integration with computers and TVs for image and video review. Its Eye-Fi support also hints at wireless transfer capabilities when paired with compatible cards - a plus for on-the-move photographers.

Price and Value: What You Get for Your Money

The Sigma DP1 demands a premium for its specialized sensor and image quality. However, it remains a niche choice favoring photographers who cherish color accuracy and manual control over speed and zoom. The Sony HX20V offers greater feature breadth at a friendlier price, suitable for wider casual to enthusiast use.

Final Scores: Performance Across Photography Types

Who Should Choose the Sigma DP1?

• You are passionate about color accuracy and tonality, especially for portraits and landscapes.
• You relish manual control and appreciate the precision of a fixed wide-angle lens.
• You prioritize image quality over zoom or speed - a contemplative photographer.
• Low-light shooting is limited but manageable if you have good lighting or tripod support.
• Video is not a concern; your focus is purely stills.
• You want an APS-C sensor in a compact form factor, embracing Foveon's unique color capture.

Who Should Opt for the Sony HX20V?

• You need a versatile zoom range, ideal for travel, wildlife, sports, and street photography.
• You desire a fast, reliable autofocus system with face detection.
• Video recording is important - you want Full HD footage with optical stabilization.
• Portability and lightweight design matter for all-day carry.
• You don't shoot RAW but prefer solid JPEG quality straight out of the camera.
• Connectivity features like HDMI and Eye-Fi compatibility enhance your workflow.

In Summary: Bridging Your Creative Journey

Choosing between the Sigma DP1 and Sony HX20V boils down to your creative priorities and shooting style:

• The Sigma DP1 is a special-purpose compact camera, celebrated for exceptional color fidelity and large sensor quality, inviting photographers to slow down and craft detailed stills with care. It suits enthusiasts and pros looking for a unique imaging experience, albeit with compromises in speed, zoom, and low-light agility.

• The Sony HX20V excels as an all-rounder superzoom compact, blending respectable image quality with flexibility in framing, autofocus, and video capabilities. It’s your companion for diverse situations - from macro close-ups to distant wildlife - and provides user-friendly features that beginners and enthusiasts find welcoming.

Ready to Explore?

Handling these cameras yourself is invaluable. Testing their ergonomics, operation speed, and shooting experience will clarify which better fits your photography aspirations.

Don’t forget to check out the latest accessories such as dedicated tripod mounts for the DP1 or additional memory cards for the HX20V’s video storage.

We hope this comparison boosts your confidence in selecting a camera that matches your creative goals and workflow.

Happy shooting!

Article images:

• 
• 
• 
• 
• Sigma DP1 front Sigma DP1 screen back Sony HX20V front Sony HX20V screen back