| inviato il 29 Giugno 2018 ore 8:06
Pentax ha annunciato ufficialmente il Pentax-D FA* HD 50mm f/1.4 SDM AW; sarà disponibile da fine luglio a un prezzo attorno ai 1200 euro.
Caratteristiche tecniche : www.juzaphoto.com/recensione.php?l=it&t=pentax_d_fa50_f1-4sdm
Comunicato stampa :
RICOH ANNOUNCES AVAILABILITY OF HD PENTAX-D FA? 50mm F1.4 SDM AW STAR-SERIES LENS
First model in new generation of high-performance K-mount lenses delivers exceptional imaging performance and superior dependability in a wide range of shooting conditions
WEST CALDWELL, NJ, June 28, 2018 ?Ricoh Imaging Americas Corporation today announced the availability of the first model in its new generation of PENTAX Star series lenses, the HD PENTAX-D FA?50mm F1.4 SDM AW. This large-aperture, prime lens delivers stellar imaging performance and maximum light transmission—the hallmarks of the acclaimed Star series line—and is the perfect companion to any K-mount digital SLR camera including the full-frame PENTAX K-1 and new PENTAX K-1 Mark II models.
Premium-quality Star-series lenses deliver the highest performance among the PENTAX SLR interchangeable lens series, and have enjoyed enthusiastic support from PENTAX SLR camera users since the days of film. In addition to the initial design concepts of optimum image quality and large apertures for maximum light transmission, the series has embraced the additional concepts of exceptional toughness and outstanding operability, achieved through the development of a dustproof, weather-resistant lens housing. The resulting lenses provide superior dependability in wide range of shooting conditions.
The HD PENTAX-D FA?50mm F1.4 SDM AW lens delivers exceptional resolving power from the center to the edges of the image field, even when set to open aperture. The lens incorporates state-of-the-art PENTAX-developed lens coating technologies — including the new Aero Bright Coating II for exceptionally low reflectance and high-grade high-definition (HD) Coating — that enable it to produce extra-sharp, high-contrast images free of flare and ghost images. The lens's dustproof, weather-resistant body also makes it extremely dependable and durable for shooting in demanding outdoor conditions. Its PENTAX K-mount covers the image circle of a 35mm-format full-frame image sensor.
The new lens is the first produced following Ricoh's extensive review of standards for the top-of-the-line Star series. Engineers evaluated a variety of approaches to minimize aberrations and deliver the highest image quality. The HD PENTAX-D FA?50mm F1.4 SDM AW lens is designed to deliver optimum imaging performance with all compatible camera bodies, including next-generation digital SLRs.
| Key Features |
New-generation, high-performance Star-series lens with large F1.4 maximum aperture
This lens has been developed as a new-generation member of the high-performance Star series — a lineup designed to deliver extra-clear, high-contrast images with edge-to-edge sharpness while keeping aberrations to a minimum. The lens, which is the result of an extensive review of traditional Star-series standards, provides greatly improved resolving power, which enables it to deliver excellent imaging performance even with more advanced, next-generation camera bodies. Developed as the first model of the new-generation Star-series lenses, the new lens boasts an extra-large F1.4 maximum aperture, useful with many different subjects in a range of applications, including portraiture with an effectively de-focused (bokeh) background, and handheld shooting of indoor scenes. It provides exceptional image quality even at open aperture, as well as outstanding performance at close ranges.
State-of-the-art optical technology
The lens is treated with PENTAX-developed Aero Bright Coating II — a lens coating developed using a state-of-the-art nanotechnology process. It consists of a silica aerogel layer with a uniform porous structure over a regular multi-coating layer that reduces surface reflections across a wide wavelength range and produces crisp, high-quality images.
By coupling this advanced lens coating with the high-grade, multi-layer HD (high definition) Coating, average reflectance in the visible ray spectrum is reduced to less than 50% compared to conventional multi-layer coatings. As a result, the lens effectively reduces flare and minimizes ghost images even in demanding lighting conditions, such as backlighting. The lens incorporates three super-low dispersion glass elements and one aspherical element to effectively compensate for chromatic and spherical aberrations, enabling it to produce brilliant, high-contrast images with edge-to-edge sharpness. Since distortion is minimized even at a focusing distance of approximately one meter, the lens produces crisp, distortion-free images over the entire focusing range, from the minimum focusing distance to infinity.
Dustproof, weather-resistant construction
Developed as an AW (all weather) model, this lens features a dependable dustproof, weather-resistant body with eight special seals to prevent the intrusion of water and dust into the lens interior. When paired with a PENTAX weather-resistant digital SLR camera body, it forms a durable, reliable digital imaging system that performs superbly in demanding conditions — even in rain or mist, or at locations prone to water splashes or spray.
Newly developed ring-type motor
This lens features a newly developed ring-type SDM (supersonic direct-drive motor), which generates as much as 7.5 times the torque as the SDM installed in previous-generation lenses. This enormous driving power assures a smooth, high-speed shift of the heavy, multi-element rear lens group during focusing operation.
Other features
?Nine-blade, round-shaped diaphragm produces a natural-looking de-focus (bokeh) effect up to an F2.8 aperture setting, while minimizing the streaking effect of point light sources
?A minimum focusing distance of 0.4 meters, effective for capturing images with a de-focus effect
?Electromagnetic diaphragm-control mechanism,* for flawless, high-precision exposure control during movie recording
?SP (Super Protect) coating to keep the front surface free of dust and spots
* This mechanism is available when the lens is mounted on a PENTAX K-1 Mark II, K-1, K-3 II, K-3, KP, K-70, K-S2 or K-S1 camera body.
| Pricing and Availability |
HD PENTAX-D FA?50mm F1.4 SDM AW will be available in late July 2018 at www.ricohimaging.com and retail outlets nationwide for a manufacturer's suggested retail price of $1,199.95. |
user28347 | inviato il 29 Giugno 2018 ore 11:17
finalmente,spero sia interessante |
| inviato il 29 Giugno 2018 ore 12:38
Dalla scheda tecnica sembrerebbe tropicalizzato |
| inviato il 29 Giugno 2018 ore 15:29
Dal prezzo sembrerebbe che la riga gialla sul barilotto sia d'oro. |
| inviato il 29 Giugno 2018 ore 16:24
Il prezzo mi sembra corretto. |
| inviato il 29 Giugno 2018 ore 16:41
Quindi il mio SMC 50 1.4 da oggi diventa un fondo di bottiglia... |
| inviato il 29 Giugno 2018 ore 16:51
Sarà senz'altro tropicalizzato e pure molto bene oltre che con trattamento anti-unto delle lenti, da tradizione Pentax. |
| inviato il 29 Giugno 2018 ore 17:19
La serie * (Star) di Pentax è AW (All Weather) la tropicalizazzione massima che può avere Il Marchio. |
| inviato il 29 Giugno 2018 ore 17:29
Una volta uniti corpo e ottica, li puoi pure lavare sotto il rubinetto. |
| inviato il 29 Giugno 2018 ore 22:09
...sì sì, sarà fantastico, con una gran qualità anche a TA ... ma personalmente non condivido la scelta di Pentax di sacrificare peso e maneggevolezza per la qualità (vedi serie Sigma Art). Uno degli aspetti caratterizzanti Pentax in passato era proprio la compattezza, con obiettivi come questo e come i nuovi zoom 2,8 invece si allinea alle altre marche...oh, pesa 910 g! Sarà che mi piace far foto in montagna, in natura, in viaggio e non sono un professionista ma mi diverto molto di più uscendo con ottiche più piccole e leggere, altrimenti ci sono gli zoom!
Comunque forza Pentax con la sua roadmap....tieni duro, è un mondo difficile!
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| inviato il 29 Giugno 2018 ore 23:55
Quoto, pentax era bravissima nel fare ottiche molto compatte di grande qualità! |
| inviato il 30 Giugno 2018 ore 6:25
Evidentemente con le esigenze di risoluzione delle moderne digitali, non è più così semplice. |
| inviato il 05 Luglio 2018 ore 2:19
Spero in questo modo di trovare qualche 55 1.4 a prezzo stracciato |
| inviato il 05 Luglio 2018 ore 3:57
Sarà compatibile con il Full Frame, ma era comunque un'ottica pensata per l'Aps-c e ho dei dubbi sul rendimento con una Reflex dal sensore denso come K-1II. |
| inviato il 05 Luglio 2018 ore 7:23
in realta' il sensore della K1 e' molto meno denso di quello di una K3. La densita' del sensore dalla K1 e' in linea con quella della K5 |
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