Pentax 645Z Avis | 108 Données comparées

The Photography Life review of the Pentax 645Z highlights the camera’s exceptional build quality, praising the robust magnesium alloy shell and 76 weather seals that proved durable in harsh conditions. Despite being subjected to a drop and extreme temperatures in Death Valley, the camera functioned flawlessly, making it a standout option for professional, rugged outdoor use. Photography Life However, the review outlines that the camera’s significant weight is a major drawback for extended hiking or handheld shooting, marking it as a specialized tool rather than a portable option. Additionally, the field test was limited by the unavailability of certain lenses, though the core camera system was highly regarded for its responsive performance and premium tilting display.

The Pentax 645z is evaluated as a game-changing, "somewhat-affordable" medium format digital camera system priced under $10,000 that performs similarly to an oversized DSLR. Built around a 51-megapixel Sony CMOS sensor, the camera excels at delivering massive raw files with incredible color detail, exceptional shadow recovery, and highly impressive dynamic range. Unlike older CCD medium format systems that require base ISO shooting, the 645z handles low-light environments beautifully, providing usable high-ISO performance up to ISO 12,800 and 25,600. Reviewers praised its outstanding battery life (lasting 1,000 to 1,300 frames), reliable weather-sealing for outdoor shooting, and a highly functional articulating rear screen featuring real-time raw data exposure warnings during Live View. Despite its stellar image quality, the system has notable limitations in speed, studio compatibility, and ergonomics. The 27-point autofocus system is slow, clustered strictly in the center 25% of the viewfinder, and struggles heavily in backlit or moving situations. Studio and strobe photographers face a slow native flash sync speed of 1/125th second, though this can be bypassed using legacy leaf-shutter lenses or P-TTL speedlights. Additionally, users noted that the...

The Pentax 645Z review highlights it as a highly capable, weather-sealed digital medium-format camera that significantly improves upon its predecessor, the 645D. It is heavily praised for its outstanding image quality powered by a 51-megapixel CMOS sensor, offering crisp details, beautiful skin tones, and an impressive dynamic range. Key pros include its relatively affordable price point compared to medium-format competitors, expanded ISO sensitivity up to 204,800, dual SD card slots, excellent battery life (at least 700 frames), a helpful 3.2-inch tilt LCD screen, and a free Lightroom plug-in for tethered shooting. Additionally, it maintains user-friendly, responsive controls and offers a relatively mild learning curve for photographers transitioning from professional DSLRs. However, the review details several notable cons, most notably its disappointing full HD video performance, which lacks the crispness of its still imagery and is only suitable for short clips rather than long-form projects. Handling-wise, it is a very heavy and bulky camera, weighing 54.67 ounces fully loaded, meaning certain larger lenses—like the 28-45mm f/4.5—require strict tripod support. Studio and event shooters may also find frustration with its slow autofocus...

The Pentax 645Z is a medium-format DSLR equipped with a 51.4-megapixel CMOS sensor (43.8 x 32.8mm) that lacks an optical low-pass filter, delivering exceptionally detailed, low-noise images with smooth tonal gradations. Tested by DxOMark, it achieved an outstanding overall score of 101 points, making it the second-highest-scoring sensor at the time of its review, trailing only the Hasselblad X1D-50c. Key advantages include its excellent dynamic range of 14.7 Ev and a high portrait color depth of 26 bits, which provide robust data for post-capture editing without risk of posterization or banding. Furthermore, it excels in low-light environments, securing a record-high sports score of ISO 4505 due to its larger pixels. Architecturally, its weather-sealed, durable body mimics a small-format DSLR, making it uniquely suited for field use compared to traditional medium-format systems. Despite these formidable strengths, the 645Z does exhibit notable shortcomings, particularly when evaluated against newer sensor innovations like the full-frame Nikon D850. Due to its older sensor architecture, it falls slightly short of the Nikon D850 at base ISO when replicating red and green color channels, which can marginally...

The Dylan M. Howell review identifies the Pentax 645Z as a transformative tool for commercial and portrait photography, highlighting its spectacular 51-megapixel resolution and impressive low-light performance with minimal noise up to ISO 25,600. Key advantages include an accurate 27-point autofocus system, exceptional battery life, and an articulating screen that simplifies composing shots from difficult angles. Conversely, the review notes that the camera's weight, massive sensor, and significant mirror slap necessitate fast shutter speeds (1/250s or higher) to avoid camera shake, making handheld shooting challenging. Other limitations include the tightly clustered, central-only autofocus points and a lack of a dedicated physical joystick for navigating the autofocus points, often requiring a focus-and-recompose technique.

The Pentax 645Z is a durable, weather-sealed, 51.4-megapixel medium-format camera designed for serious field use, featuring a deep grip for improved ergonomics and a capable 3 fps burst mode. Key advantages include its extensive 76-seal construction for harsh environments and compatibility with optional FluCard technology for wireless functionality. Conversely, the camera is quite heavy at 1550g, resulting in a bulky form factor unsuitable for casual, single-handed shooting. Notable limitations identified in the review include a lack of built-in Wi-Fi and a specialized, large design that necessitates intentional, careful operation.

The Pentax 645Z is a medium-format digital camera built around a 51.4-megapixel Sony CMOS sensor that delivers superb image quality and unmatched high ISO noise performance for its class. A major strength of the camera is its highly functional and rugged design, which features extensive dedicated external controls, a bright optical viewfinder, a versatile articulated 3.2-inch LCD with Live View, and reliable weather-sealing. Furthermore, Pentax successfully resolved the severe shutter-shake issues that plagued its predecessor, the 645D, while integrating helpful features like an affordable long-lasting battery, DNG raw format support, and basic Wi-Fi connectivity via optional "FLU" SD cards. The camera's phase-detect TTL autofocus system also shows notable improvements, rendering foreground landscape subjects tack-sharp. However, the reviewer highlights several prominent drawbacks, starting with a "thickening" and over-complication of the control interface, highlighted by a confusingly implemented Auto ISO mechanism and misplaced menu options like the hidden Format command. Performance Niggles include a sluggish three-second delay for image previews and a video mode that completely breaks apart under swift motion unless stabilization is turned off on a tripod. Additionally, the camera...

The Pentax 645Z is a game-changing medium-format DSLR that bridges the gap between full-frame and medium-format systems by offering an affordable street price of $8,497 (body only) and a familiar 35mm-style control layout. Its massive 44x33mm, 51.4-megapixel Sony CMOS sensor delivers exceptional image resolution, scoring an impressive 4,425 lines per picture height at ISO 100 with incredible detail preservation up to ISO 6,400. Notable strengths include an unprecedented maximum sensitivity of ISO 204,800, a highly useful 3.2-inch tilting LCD screen for awkward angles, dual SD card slots with wireless FLU card compatibility, and a deeply comfortable handgrip. Furthermore, backward compatibility allows photographers to pair the body with affordable vintage Pentax lenses. However, the camera has notable trade-offs, particularly regarding speed and physical footprint. The autofocus system is quite sluggish compared to 35mm standards, taking 0.81 seconds to lock focus in bright conditions and over two seconds in dim environments. The burst rate is also limited to just 3 frames per second. Mechanically, its large sensor necessitates a massive reflex mirror, making the body incredibly heavy at 3.4 lbs and too...

The DPReview article "Medium well done: Two takes on the Pentax 645Z" highlights the 51.4-megapixel camera's outstanding image quality, high-ISO performance, and user-friendly DSLR-like handling, which makes it surprisingly practical for fieldwork. However, professional reviewers note significant drawbacks, including a slow 1/125s flash sync speed and a massive, heavy footprint that limits its use for fast-paced, handheld shooting. While the autofocus system is criticized as being relatively slow and centrally clustered, the camera is praised for its exceptional, specialized image quality suitable for landscape, studio, and fine-art portraiture. The two perspectives within the article reinforce that the 645Z delivers unique visual depth, despite being an physically demanding tool to operate outside of a studio setting.

The Photigy review of the Pentax 645Z highlights the medium-format camera's suitability for high-end studio work, praising its robust, DSLR-like handling and high-contrast tilting LCD screen. It offers exceptional 14-bit native DNG file output with a class-leading dynamic range, allowing for flawless shadow recovery with minimal noise. Photigy Key drawbacks for jewelry photography include the camera's heavy 54.9 oz weight and an unpopular rear button layout. Additionally, it requires high-capacity memory for 75MB files and faces significant diffraction issues beyond f/11, demanding extensive focus stacking for macro shots. Photigy

The Shutterbug review of the Pentax 645Z highlights the medium-format camera’s exceptional still image quality, driven by its 51.4MP CMOS sensor and wide 12.3 f/stops of dynamic range. Ideal for studio and landscape work, the camera offers accurate color reproduction and impressive, high-contrast, low-noise imagery. Conversely, the review identifies significant weaknesses in video performance, noting severe aliasing, moiré effects, and flickering at 1080p. Furthermore, the video mode experiences a dramatic reduction in dynamic range to 6.13 f/stops, producing a soft, low-resolution output. Shutterbug.com

The Pentax 645Z 51.5MP digital medium format DSLR is reviewed as a durable, "built-like-a-tank" workhorse that offers superior image quality and a distinct medium format aesthetic. Key advantages include its detailed 51.5MP sensor, robust weather sealing, an articulating 3.2-inch LCD, and high-speed USB 3.0 for tethering. Medium · Conversely, the 3.4-pound camera is described as a heavy, physically demanding "beast" that lacks a built-in flash, requiring external lighting solutions. Despite these weight and feature drawbacks, the review concludes that the $8,499 MSRP, when considered over the long term, delivers exceptional value, making it a viable, high-performance option for photographers. Medium ·JJ Jumoc-Casas