Pentax SMC DA 50 200mm F4 5 6 ED Avis | 54 Données comparées

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The Pentax 50-200mm f/4-5.6 ED SMC P-DA is a budget-friendly telephoto zoom lens designed for APS-C digital SLR cameras that offers solid value and better-than-average image sharpness. Its main strengths lie in its lightweight, durable build featuring a metal lens mount, and a highly functional manual focus ring backed by Pentax's Quick-Shift system for seamless autofocus overrides. Optically, the lens achieves tack-sharp, peak performance in its mid-range—specifically at 80mm and f/11—while keeping corner shading and vignetting minimal across all focal lengths. Additionally, the smart lens hood design includes a removable section that lets photographers easily adjust polarising filters without detaching the hood. However, the lens does compromise in several areas to maintain its low retail price of around $200. Its biggest drawbacks are significant corner softness when shooting wide open at the extreme 50mm and 200mm focal lengths, alongside noticeable chromatic aberration that peaks in the corners at mid-range focal lengths. Distortion is also complex, shifting from barrel distortion at 50mm to a maximum -0.5% pincushion distortion at 95mm, making digital correction tricky. Finally, because it relies on a mechanical...

The Pentax SMC-DA 50-200mm f/4-5.6 ED is a highly compact telephoto zoom lens designed specifically for APS-C format DSLRs, delivering a full-frame equivalent focal length of 75-300mm. Tested by Klaus Schroiff for OpticalLimits (PhotoZone), this budget-friendly lens retails for around 160€ / US$160 and serves as a highly portable alternative to traditional, massive telephoto lenses. It features an optical design of 11 elements in 10 groups, including one Extra-low Dispersion (ED) element to reduce aberrations, a 6-blade aperture, a 52mm non-rotating front filter thread, and a minimum focusing distance of 1.1 metres. Pros & Cons Pros: Ultra-compact design: Remarkably small size, barely larger than a standard kit zoom lens. High affordability: Highly attractive, budget-friendly price point for cost-conscious photographers. Good build quality: Despite plastic construction, it features tight tolerances, a durable metal mount, and smooth zoom/focus ring operation. Quick-Shift Focus: Supports seamless, instant manual focus override immediately after the autofocus locks on. Non-rotating front element: Simplifies the hassle-free use of polarising filters. Cons: No internal AF motor: Relies entirely on the camera's slotted drive screw mechanism. Noisy autofocus: The mechanical...

The Pentax DA 50-200mm f/4-5.6 ED is a budget-friendly starter zoom lens designed for Pentax DSLRs using the standard KAF mount. Because Pentax cameras utilize sensor-shift image stabilization within the camera body, this lens does not require built-in optical stabilization. Reviewers from What Digital Camera rated its overall image quality and performance at 80%, noting that it delivers an acceptable, solid sharpness throughout its entire aperture range, alongside well-maintained central chromatic aberration control at the 50mm focal length. A major benefit of this lens is its Quick-Shift Focus System, which allows photographers to manually override focus even while operating in autofocus mode. It also features a dedicated focus distance scale for pre-focusing and a high-quality, practical manual focus grip that outperforms comparable entry-level Canon options. However, a significant drawback is the lack of an SDM (Supersonic Drive Motor) module, which causes the autofocus to be loud and slow compared to its silent Nikon and Canon rivals. Additionally, it lacks a fast maximum aperture, utilizes less expensive glass elements, and exhibits average chromatic aberration control across most focal lengths.