Pentax SMC DA 200mm F 2 8 ED IF SDM Análisis | 54 Datos comparados

The Pentax DA* 200mm SMC f/2.8 ED (IF) SDM is a high-end, fast-aperture prime lens built for demanding photographers and taxing conditions. On the positive side, it features robust weather sealing against dust, dirt, and splashes, complemented by an SP (Super Protection) coating on the front element to resist moisture and oil. It delivers strong optical performance, with exceptionally impressive MTF resolution results that peak between f/5.6 and f/8. The lens also includes a quick and quiet SDM inner-focusing autofocus system, a powdered-textured barrel for an easier grip, and a lens hood featuring a practical removable trap door for rotating polarising filters. However, the review highlights several drawbacks, most notably the presence of chromatic aberration and color fringing at the extremes of the image field in tricky, real-world conditions. There is also a slight drop in sharpness at its maximum f/2.8 aperture. In terms of handling, the manual-focusing ring offers a bit too much resistance for optimal comfort, the included lens hood is easily dislodged from its storage position, and the lens completely lacks image stabilization technology. Finally, while Pentax...

The Pentax SMC DA* 200mm f/2.8 ED(IF) SDM is recognized as a professional-grade super-telephoto lens offering outstanding resolution, minimal chromatic aberration, and low distortion even at f/2.8. Its robust, weather-sealed build, fast SDM autofocus, and high value for money make it an exceptional choice for photographers. Despite these strengths, the review notes minor shortcomings, including a, loosely attached lens hood when stored in reverse and slightly high resistance in the manual focusing ring. These small issues do not overshadow the lens's overall excellent performance, according to the review.

The Pentax SMC DA* 200mm f/2.8 ED [IF] SDM is a highly anticipated, professional-grade telephoto prime lens. It provides a full-format 300mm equivalent field of view when mounted on APS-C DSLRs. The review notes that its optical formula is closely adapted from the discontinued FA* 200mm f/2.8. This allows the lens to maintain full-frame coverage despite its "DA" classification. Its physical architecture consists of 9 elements in 8 groups, featuring two Extra-low Dispersion (ED) elements and a 9-blade aperture system. The review highlights several prominent advantages and minor drawbacks of the lens: Pros Exceptional Build Quality: It features a durable metal outer body with weather and dust sealing. Advanced Mechanics: The internal focusing (IF) mechanism ensures the 77mm filter thread does not rotate and keeping the barrel length completely static. Silent, Flexible Autofocus: The "Supersonic Dynamic Motor" (SDM) enables fast, near-silent operation alongside a Quick Shift system for instant manual overrides. Backward Compatibility: It includes a legacy drive-screw AF interface to support older pre-SDM camera bodies. Smart Hood Design: The deep lens hood includes a removable window to easily adjust...

The Pentax 200mm f/2.8 ED IF SDM SMC DA* is a weather-sealed, designed-for-digital telephoto prime lens that offers a 300mm equivalent field-of-view on Pentax DSLRs. In terms of optical performance, the lens excels with zero visible distortion, excellent control over chromatic aberration, and minimal corner shading that only appears at f/2.8. It delivers remarkable overall sharpness, reaching peak performance across the entire frame at f/5.6. Furthermore, the build quality is exceptionally solid, featuring a metal lens mount, a smooth 270-degree manual focus ring, and a large, high-quality lens hood with a removable window for adjusting polarizing filters. However, the review highlights several distinct drawbacks in both handling and real-world testing. At its maximum f/2.8 aperture, the lens exhibits a unique quirk where the center of the frame is marginally softer than its corners. While point-to-point autofocus is quiet, the SDM autofocus system is surprisingly loud when racking through the entire focus range, and real-world testing during sports photography yielded inconsistent focus tracking. Additionally, the lens produces objectionable bokeh featuring noticeable green and purple fringing around out-of-focus background elements. Finally, the...

The Pentax DA* 200mm f/2.8 ED IF SDM is a fixed focal length telephoto prime lens built for APS-C format cameras, offering a lighter and more compact build (825g) compared to bulky f/2.8 zoom alternatives. Tested on a Pentax K-5 II, this upmarket lens boasts weather-sealed construction, internal focusing, and a dirt-resistant front element. Its primary pros include exceptional image sharpness that holds up incredibly well even wide open at f/2.8, an ultra-low pincushion distortion that is virtually unnoticeable, and a bright f/2.8 maximum aperture. However, the lens falls short in a few performance areas that serve as notable cons. Most notably, it suffers from surprisingly poor color fringing scores for a prime lens, requiring photographers to rely heavily on in-camera digital corrections to clean up chromatic aberrations. Additionally, while its ring-type ultrasonic autofocus is generally fast, it is prone to hunting when shooting in dim or low-light conditions. Lastly, because the lens lacks built-in optical image stabilization, users must rely entirely on the camera body's sensor-shift system, which only netted about 2.5 stops of handheld stabilization during testing.

The Pentax SMC DA* 200mm f/2.8 ED [IF] SDM is a professional-grade telephoto lens designed with a weather-sealed metal body, dust- and moisture-resistant sealing, and a smooth, rubberised focus ring. It provides a full-frame equivalent focal length of roughly 310mm on APS-C DSLRs. The optical layout contains nine elements in eight groups, featuring two extra-low dispersion (ED) glass elements and nine aperture blades. It incorporates an internal focusing mechanism to keep the lens length fixed. A deep lens hood is supplied, sporting a clever, removable window that lets photographers adjust polarising filters with the hood attached. The review highlights several core performance advantages, including a virtually silent, fast "Supersonic Dynamic Motor" (SDM) autofocus system and a Quick Shift mechanism that allows manual focus overrides without switching modes. It retains backward compatibility with older bodies using a traditional drive-screw AF interface. Additionally, its front element has a protective "Super Protect" coating to repel dust, grease, and water. Conversely, the primary drawbacks noted relate to its design history and delayed release, as the internal optics are not entirely new but are instead...

The SMC Pentax-DA★ 200mm F2.8 ED [IF] SDM is highly regarded by users for its professional-grade, weather-sealed construction and exceptional image quality, delivering outstanding sharpness wide open at f/2.8 with beautiful bokeh. Designed for APS-C sensors, it offers superb color rendition and is even considered usable on full-frame cameras with minimal vignetting. However, the reviews identify a critical drawback: a high failure rate of the Supersonic Drive Motor (SDM), often requiring a conversion to the camera body’s screwdrive autofocus. While the autofocus is reliable when working, it is described as somewhat sluggish and lacks a range limiter, and some users report minor chromatic aberrations in high-contrast situations.