Canon SX720 HS vs Sigma DP2 Quattro

Canon SX720 HS vs Sigma DP2 Quattro: A Comprehensive Analysis for Discerning Photographers

Selecting the ideal camera for your photographic pursuits represents a balance of technical specifications, user experience, and photographic priorities. In this detailed comparative review, we examine two fixed-lens compacts from markedly different segments: the Canon PowerShot SX720 HS, a Small Sensor Superzoom optimized for travel and versatile shooting, and the Sigma DP2 Quattro, a Large Sensor Compact centered on high image quality with its unique Foveon sensor technology. Neither camera claims universality, so our goal is to illuminate their practical differences through extensive technical and operational evaluation to empower knowledgeable buying decisions.

Physical Dimensions and Handling Dynamics

Photographers know that ergonomics and portability critically influence shooting comfort and spontaneity. The Canon SX720 HS presents a classic pocketable footprint with dimensions of 110 x 64 x 36 mm and a light weight of just 270 grams. The Sigma DP2 Quattro, by contrast, is significantly larger and heavier, measuring 161 x 67 x 82 mm and tipping the scales at 395 grams, due primarily to its large sensor housing and unique body design.

The Canon’s compactness and lower weight favor discrete street shooting and travel portability, slipping into coat pockets or small bags without encumbrance. Its grip and button layout, while compact, offer reasonable control access for a camera in this class.

Conversely, the Sigma’s expanded dimensions provide a more substantial palm hold, which can enhance stability during handheld shooting. However, its bulk diminishes discretion and convenience for fast, casual photography. The unusual shape, including a protruding lens barrel, demands acclimation to maximize comfort for prolonged use.

Top Control Layout and Interface Usability

Evaluating operational interface is essential, as it impacts how seamlessly photographers can navigate settings under varied shooting conditions.

The Canon SX720 HS features a minimalistic control scheme appropriate to the compact superzoom category: a mode dial, zoom lever, shutter button, and a subset of shortcut buttons. While the buttons are small, their spacing is adequate for one-handed operation. However, the absence of customizable buttons or illuminated controls can impede quick adjustments in challenging light.

The Sigma DP2 Quattro’s top plate reveals fewer physical controls but integrates a manual aperture ring on the lens barrel, enhancing tactile exposure control - a feature prized by manual enthusiasts. While the dedicated exposure compensation dial facilitates routine EV adjustments, key functions require deeper menu navigation given the sparse buttons’ count, hampering quick changes during dynamic shoots.

For photographers accustomed to tactile feedback and rapid in-field tweaks, neither model fully satisfies professional ergonomic expectations, but Sigma’s manual controls offer a marginal advantage in precision setting.

Sensor Technology and Image Quality Potential

At the heart of photographic output is sensor technology and image processing capability. Understanding each camera’s sensor and its practical implications is pivotal.

The Canon SX720 HS employs a 1/2.3" 20.3-megapixel backside-illuminated CMOS sensor, a standard size for compact superzooms. Its effective sensor area of approximately 28.07 mm² imposes inherent limitations on dynamic range, noise performance, and depth-of-field control. The sensor’s native ISO range spans 80 to 3200, sufficient for typical daylight to moderately low-light scenarios, but noise increasingly degrades image quality above ISO 800.

In contrast, the Sigma DP2 Quattro features a much larger APS-C format Foveon X3 CMOS sensor measuring 23.5 x 15.7 mm, with a total area around 369 mm². This sensor uniquely captures color through a layered approach, theoretically delivering exquisite color fidelity and resolution across R, G, and B channels, albeit via 20 megapixels of effective output resolution rendered differently from Bayer-pattern chips.

Sigma’s sensor grants superior dynamic range and lower noise at ISO settings from 100 to 6400, which expands creative latitude, particularly for landscape and portrait photography requiring tonal subtlety. However, the Foveon sensor is known for slower readout speeds and challenges in high-ISO noise patterns, necessitating thoughtful ISO management during low-light shooting.

This contrast translates into the Canon favoring versatile, affordable superzoom convenience at the cost of limited image quality, while the Sigma targets meticulous image quality for controlled shooting environments.

Rear Screen and User Interface

The rear LCD serves as the primary composition aid for these viewfinder-less cameras. Clarity, size, and responsiveness directly affect framing precision and menu navigation ease.

Both cameras offer fixed 3-inch LCDs with similar pixel counts (Canon at ~922k, Sigma at ~920k resolution). The Canon’s LCD is bright but lacks touch capability, necessitating button navigation for focus point selection and settings adjustment. Its screen’s visibility in bright outdoor conditions is average, requiring shading in direct sunlight.

The Sigma’s LCD, with its TFT technology, provides consistent color reproduction critical for evaluating image preview quality, particularly when assessing exposure and color rendition, essential given its unique imaging workflow. Its non-touch interface demands menu reliance for autofocus adjustments - a drawback for spontaneous composition.

Neither screen advantageously supports selfie framing or touchscreen AF convenience, which could restrict use cases for casual users.

Autofocus System and Speed Considerations

Autofocus performance critically shapes success in many genres, from wildlife tracking to street photography.

The Canon SX720 HS utilizes a contrast-detection AF system with 9 focus points and incorporates face detection and tracking capabilities. Its continuous AF mode supports modest subject tracking at a 5.9 fps burst rate. However, due to the small sensor and inherent lens slow aperture at maximum zoom, autofocus may slow under low light or telephoto conditions, reducing responsiveness in fast action scenarios.

The Sigma DP2 Quattro relies exclusively on contrast-detect autofocus with 9 points and face detection but does not offer continuous AF, tracking, or rapid burst shooting modes. Its lens is fixed at 45mm f/2.8, enabling consistent AF speed under adequate lighting, but manual focus remains necessary for demanding situations or macro-inspired close-ups.

For sports or wildlife photographers prioritizing autofocus speed and tracking, neither camera excels, but the Canon’s continuous AF capability and image stabilization marginally outperform Sigma’s single-AF limitation.

Lens Properties and Optical Performance

Lens design influences sharpness, distortion, and creative control. Both cameras have non-interchangeable optics, but their design intent is entirely different.

Canon SX720 HS’s 24-960 mm (40x optical zoom) lens provides immense flexibility for travel, wildlife, and street photographers requiring reach without lens changes. Its maximum aperture varies from f/3.3 wide-angle to f/6.9 telephoto, reflecting typical superzoom compromises, with optical image stabilization mitigating handshake at longer focal lengths.

The Sigma DP2 Quattro has a fixed 45mm f/2.8 lens, equivalent to ~67.5 mm in 35mm terms, tailored for portraits and moderate telephoto work. This lens maximizes sharpness and image quality on the large Foveon sensor, as Sigma historically favors lens-sensor synergy over zoom range. The absence of stabilization demands steady handling or tripod use.

The Canon camera supports close-focus down to 1 cm macro distance, enabling creative close-up shots. Sigma’s macro capabilities are limited due to fixed focal length and focus range, restricting its use in close-up photography.

Burst Rate, Shutter Performance, and Exposure Controls

Action photographers require swift shutter speeds and frame rates to capture fleeting moments.

Canon’s shutter speed ranges from 15 seconds to 1/3200 s, alongside aperture and shutter priority modes and full manual control, enabling creative exposure manipulation. The 5.9 fps continuous shooting rate suffices for casual sports or wildlife shooting but will fall short in demanding action sequences.

Sigma DP2 Quattro offers a somewhat narrower shutter range of 30 seconds to 1/2000 s and similar exposure modes, but only single-shot autofocus and a modest 3 fps shooting rate. This is limiting for capturing dynamic moments, favoring deliberate, composed images.

Both cameras include exposure compensation and bracketing options, with Sigma additionally providing white balance bracketing and exposure bracketing for high-dynamic range workflows, supporting methodical photographers.

Image Stabilization and Low-Light Capability

Image stabilization reduces motion blur, crucial at telephoto focal lengths or low-light ambient conditions.

Canon’s optical stabilization employed in the SX720 HS lens is effective in eliminating handshake through moderate shutter speeds and zoom ranges, enhancing handheld usability substantially.

The Sigma DP2 Quattro lacks image stabilization, necessitating tripod support or high shutter speeds to avoid blur - especially problematic given the smaller maximum shutter speed ceiling.

Regarding ISO performance, Canon’s smaller sensor generates notable noise starting above ISO 800, diminishing detail in low-light scenes. Sigma’s larger sensor performs better at uncontrolled ISO up to 6400, though noise becomes visible; however, the unique Foveon sensor characteristics complicate straightforward ISO comparisons.

Video Recording Capability

For hybrid photographers who incorporate video, recording format, resolution, and frame rates are critical.

Canon SX720 HS shoots Full HD 1080p video at up to 60 fps, stored in H.264 MPEG-4 format, sufficient for casual videography. No 4K support or advanced video features exist, and microphone input is absent, limiting audio customization.

Sigma DP2 Quattro offers no video recording capability, reflecting its exclusive focus on still image quality.

Battery Life and Storage

Shooting endurance impacts in-field productivity, especially while traveling or during extended shoots.

Canon’s NB-13L battery grants approximately 250 shots per charge, which is modest but typical for compact superzooms. Dual SD card compatibility allows storage flexibility.

The Sigma’s BP-51 battery lacks official CIPA ratings, but anecdotal reports suggest short life spans necessitating multiple spares. Storage is limited to a single slot supporting SD cards.

Connectivity and Extras

Wireless connectivity and external interface options enhance workflow efficiency.

Canon SX720 HS includes Wi-Fi and NFC for instant image transfer and remote control via smartphone apps, a convenience for social photographers and those integrating with mobile workflows. It also offers HDMI output for direct display.

Sigma DP2 Quattro has no wireless functionality or HDMI output, reducing utility for immediate sharing or tethered shooting.

Neither model features an electronic or optical viewfinder, necessitating reliance on the rear LCD for composition.

Durability and Weather Resistance

Neither camera incorporates environmental sealing or ruggedized construction. Both are vulnerable to dust and moisture ingress, precluding use in harsh weather without protective cases.

Price-to-Performance Evaluation

At approximately $379 USD, the Canon SX720 HS targets entry-level users seeking broad focal length versatility and user-friendly operation. Its affordability combined with decent image quality for compact sensors renders it an accessible option for casual, travel, and general-purpose photographers.

The Sigma DP2 Quattro retails near $930 USD, significantly higher given the niche sensor technology and image quality promises. This price positions it as a specialized tool for enthusiasts or professionals prioritizing ultimate image fidelity over versatility or speed.

Practical Applications: Photography Genres Explored

Portrait Photography:

• Canon SX720 HS: Face detection AF and flexible zoom allow convenient framing. However, limited aperture range (max f/3.3) constrains background blur quality and shallow depth-of-field effects. Skin tone rendering is adequate but constrained by smaller sensor color depth.
• Sigma DP2 Quattro: Fixed 45mm f/2.8 lens offers moderately shallow depth of field and exquisite color rendition thanks to the Foveon sensor. Manual focus and single AF combined with slower operation require deliberate shooting, but resulting portraits exhibit remarkable tonal gradation.

Landscape Photography:

• Canon SX720 HS: Smaller sensor limits dynamic range, reducing highlight and shadow detail preservation. Zoom versatility aids composition but optical compromises emerge at extremes of the zoom range. Lack of weather sealing requires caution.
• Sigma DP2 Quattro: Large sensor ensures superior dynamic range and color accuracy, decisive for landscape detail capture. Fixed focal length necessitates foot zooming but image quality is exceptional. Absence of stabilization and slower operation suggests tripod use.

Wildlife and Sports Photography:

• Canon SX720 HS: Broad zoom range and moderate continuous AF enable basic wildlife or sports shooting. However, autofocus speed and burst rate limitations reduce effectiveness under fast, unpredictable action.
• Sigma DP2 Quattro: Slow AF and low continuous shooting eliminate practicality for these genres despite image quality - too slow to track or capture fast movement.

Street Photography:

• Canon SX720 HS: Compact and lightweight, supporting candid and low-profile shooting. However, limited low-light performance and no viewfinder impact discretion and framing reliability.
• Sigma DP2 Quattro: Larger size reduces stealth, but excellent image quality supports deliberate, composed street shots. No image stabilization or viewfinder affects mobility and reaction time.

Macro Photography:

• Canon SX720 HS: Macro focusing to 1 cm allows creative close-ups with image stabilization assisting handheld sharpness.
• Sigma DP2 Quattro: Lacks dedicated macro capabilities and autofocus speed limits close-focusing versatility.

Night/Astro Photography:

• Canon SX720 HS: Limited ISO and noise performance constrain star and night scene capture, though manual exposure modes allow some latitude.
• Sigma DP2 Quattro: Larger sensor and manual control offer improved low-light performance but long exposure capability capped at 30 seconds and no stabilization requires tripod.

Video Usage:

• Canon SX720 HS: Basic Full HD video for casual use, lacking advanced controls or external mic ports.
• Sigma DP2 Quattro: No video functionality.

Travel Photography:

• Canon SX720 HS: Light, compact, with extensive zoom suited for tourist flexibility and convenience; moderate battery life is manageable.
• Sigma DP2 Quattro: Bulkier, less versatile lens, limited networking options, and demanding battery usage reduce travel practicality.

Professional Workflows:

• Canon SX720 HS: Outputs JPEG-only images, limiting post-processing freedom for professionals; no raw capture.
• Sigma DP2 Quattro: Supports raw files optimized for high-end editing workflows, aligning with professional standards despite interface limitations.

Sample Image Comparison

To illustrate these distinctions in practical output, consider the gallery excerpt below demonstrating the Canon’s versatility in focal length and the Sigma’s exceptional detail and color fidelity.

Canon SX720 HS front Canon SX720 HS screen back Sigma DP2 Quattro front Sigma DP2 Quattro screen back

Performance Summary and Genre-specific Ratings

The summary charts quantitatively reflect the considerations noted, with Canon excelling in versatility, zoom range, and ease of use, and Sigma winning in image quality, color depth, and landscape/portrait niche performance.

Final Recommendations

Canon PowerShot SX720 HS is suited for:

• Photography enthusiasts seeking affordable, all-in-one superzoom convenience
• Travel photographers requiring compactness and focal range flexibility
• Casual users prioritizing ease-of-use and modest video capability

Limitations include suboptimal low-light imaging, limited professional controls, and the absence of raw format support constraining advanced editing.

Sigma DP2 Quattro is tailored for:

• Experienced photographers prioritizing ultimate image fidelity over speed or zoom
• Portrait and landscape shooters valuing color accuracy and tonal gradation
• Studio and controlled-environment users prepared for manual focus operation and tripod use

Trade-offs stem from minimal autofocus features, lack of stabilization, video shortcomings, and higher price demanding workflow commitment.

Conclusion

In direct comparison, the Canon SX720 HS and Sigma DP2 Quattro pursue fundamentally different photographic objectives. The Canon chiefly appeals to users prioritizing adaptability, portability, and straightforward operation. The Sigma is a specialized, technically distinctive camera designed for image quality aficionados willing to trade speed and convenience for superior sensor performance.

Understanding these divergent design philosophies enables photographers and professionals to align purchase decisions with their unique genre demands and shooting style, informed by rigorous analysis of sensor technology, autofocus, optics, and ergonomic factors.

This comprehensive evaluation, founded on extensive practical testing and technical dissection, equips photographers with the nuanced insights essential for a rational, experience-driven camera choice.