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Obiettivo Sigma mm F/2.8 EX DC OS HSM Nikon mm
Si tratta di uno zoom standard di grande apertura progettato per le reflex SLR digitali (formato APS-C) e dotato del sistema di stabilizzazione OS.Lobiettivo molto compatto e misura appena 91.8mm di lunghezza.L',apertura di F2.8 si mantiene costante a tutte le focali, per questo motivo diventa lo strumento ideale per vari generi fotografici, dal ritratto al paesaggio.Il sistema di stabilizzazione OS (Optical Stabilizer) permette di scattare foto con tempi circa 4 volte pi lunghi del normale. Il sistema OS pu essere usato anche con le fotocamere Sony e Pentax, che posseggono al loro interno un proprio sistema di stabilizzazione. Leffetto del sistema anti vibrazioni visibile anche nel mirino, cos che il fotografo pu rendersi conto dellavvenuta stabilizzazione e procedere ad una accurata messa a fuoco.Due lenti in vetro ottico a bassa dispersione FLD (F Low Dispersione) offrono gli stessi risultati di lenti alla fluorite, inoltre due elementi forgiati in vetro ottico e uno ibrido, asferici, correggono in modo ottimale qualsiasi aberrazione. Il rivestimento Super Multi Strato riduce il flare e le immagini fantasma. Lobiettivo offre un contrasto periferico migliorato e produce immagini molto definite e contrastate anche alle massime aperture.La grande qualit delle immagini assicurata a tutte le focali.Il motore ipersonico HSM incorporato provvede a una messa a fuoco AF veloce e silenziosa, in qualsiasi momento possibile la messa a fuoco manuale.La distanza minima di messa a fuoco dellobiettivo di 28cm a tutte le focali, mentre il rapporto dingrandimento massimo di 1:5. Il diaframma rotondo a sette lamelle consente piacevoli effetti di sfocato.Il sistema di messa a fuoco interna elimina la rotazione della lente frontale e permette allobiettivo di montare un paraluce a petali e il polarizzatore circolare. se montato su una fotocamera FF l',immagine apparir vignettata Sigmas new mm F2.8 EX DC OS HSM large-aperture standard zoom lens covers a focal length from 17mm wide angle and offers a large aperture of F2.8 throughout the entire zoom range, making it ideal for many types of photography especially portraiture and landscapes. The OS, Sigmas anti shake feature offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. The OS feature allows Sony and Pentax users the option of viewing a stabilized image in the viewfinder, a feature offered only by Sigma. HSM provides fast and quiet AF. Sigmas own FLD glass elements, which have performance equal to fluorite along with two glass mold and one hybrid aspherical lens, provide excellent correction for all types of aberrations. The Super Multi-Layer coating reduces flare and ghosting. This lens boasts superior peripheral brightness and provides sharp, high contrast images even at the maximum apertures. With a minimum focusing distance of 11 inches throughout the entire zoom range and a magnification ratio of 1:5. When you need to stand ready for any photo opportunity you need a fast aperture so you can shoot in low existing light or at maximum range with a flash. This Sigma lens is perfect. With its compact size and light weight, its a necessary addition to your camera bag Costruzione lenti 17 elementi in 13 gruppi Angolo di visione gradi Numero di lamelle del diaframma 7 Apertura minima f22 Minima distanza di fuoco 28 cm Diametro filtro (mm) 77 Massimo ingrandimento 1:5 Dimensioni (diametro x lunghezza) 83.5x91.8 mm Peso 565g
Obiettivo Samyang 35mm T1.5 AS UMC VDSLR x Fotocamere
Samyang 35mm T1.5 AS UMC VDSLR LensThe Samyang 35mm T1.5 AS UMC VDSLR lens is afast, wide angle, manual focus prime lens for full frame cameras, or afast standard prime when used on APS-C/DX sensors, available mounts forCanon, and Nikon fitThis VDSLR (Video DSLR) version has beendeveloped primarily for professional cine / movie making purposes. TheVDSLR version feature follow focus gearing and decoupled aperture, whichallow the user to smoothly and quietly change focus and aperture /depth of field whist filming, and link to professional follow focus camsystems.The Samyang is rated in T-Stops rather than F-stopswhich is usual for movie camera lenses. F-stop number expresses thespeed of the lens on the assumption that lens transmits 100% of theincident light. The T-number expresses the actual light transmission,which is more accurate, and is the standard in professional cine lenses.The Samyang 35mm T1.5 AS UMC VDSLR lens version is optically the same as the standard Samyang 35mm f1.4 AS UMC version. Producingsuperior resolution and sharpness throughout the image equal orexceeding lenses 3 times as expensive, the Samyang 35mm lens is truly aprofessional class lens at a affordable price.Suitable for fullframe and cropped sensors the 35mm focal length has universalapplications, the lens is bright / fast wide-angle lens perfect forlandscape, journalism and general shooting applications, including lowlight photography. When mounted on a camera with APS-C sensor, willbecome a popular, multitasking 50mm prime lens, perfect for generalphotography including low light photography.AT wide aperturesthe Samyang 35mm video lens provide beautiful bokeh, (the character ofout-of-focus areas) which is perfect for portrait type applications, orphotography where ultra smooth out of focus backgrounds or foregroundsis preferred. This technique helps to separate the subject from thebackground giving very pleasing and professional results in both filmand still photography. Aided by its 8 aperture bladed design, thesmoothness of the bokeh provided by the Samyang 35mm is excellent.Although bokeh character is a personal preference various independenttests and users rate the Samyang 35mm lens as one of the best lensesregardless of cost or manufacturer when it comes to its bokeh character.The optical design of the Samyang 35 mm T1.5 lens is twelve elementsarranged in ten groups and includes two elements with high refractiveindex, which helps reduces its weight and dimensions to a moderate levelfor a full frame capable lens. The inclusion of an aspherical opticalelement minimizes helps reduce lateral chromatic aberration, UMCmulti-layer coatings provides high contrast and faithful colourreproduction. The design incorporates floating lens elements allowing topreserve high image quality with minimum focusing distance. The focus ring features toothed rings compatible with professionalgeared follow focus systems available in the film industry and likewise atoothed, decoupled (de-clicked) aperture ring. Such modifications allowfor smooth and precise control over focus and aperture during videorecording / filming. This allows for ultimate manual control of focusand exposure when filming from one scene to another with different lightsource intensities, such as changing exposure values (EVs) from insideto outside, or even in-camera fade ins etc.The Samyang VDSLRversions can be used in still photography as well as for video purposes.There are increasing numbers of users using DSLRs for filming and HighDefinition (HD) video and manual lenses allows the user to change focus(focus pulling) and aperture during filming.Samyang 35 mm F1.4AS UMC has been designed with great emphasis on the smallest details toboth optics and workmanship, which place the lens among the bestphotographic products in its class.Supplied with front and rearlens caps, petal-type lens hood (which is reversible for transporting)and a soft lens pouch. Filter size 77mmSpecificationManufacturerSamyang OpticsModelSamyang 35 mm T1.5 AS UMCLens typewide angle to standardFocal length35 mmMaximum apertureT1.5Min apertureT22Angle of view63.4 deg. (42.5 deg. for APS-C)Min focusing distance0.3mNo. of diaphragm blades8Focus typeMF (Manual Focus only)Lens construction12 elements / 10 groups / 1 aspherical lensDimensions111mm x 83mmWeight~ 660gFilter Size:77mmAvailable mountsNikon
Obiettivo Sigma APO mm F/2.8 EX DG OS HSM x
Un tele zoom di grande apertura che incorpora il sistema di stabilizzazione ottica OS. Lobiettivo copre le focali medie tele che vanno dal 70mm al 200mm e offre lapertura massima di F2.8 a tutte le focali.Il sistema di stabilizzazione OS (Optical Stabilizer) permette di scattare foto con tempi circa 4 volte pi lunghi del normale.Leffetto del sistema anti vibrazioni visibile anche nel mirino, cos che il fotografo pu rendersi conto dellavvenuta stabilizzazione e procedere ad una accurata messa a fuoco. Elementi in vetro ottico a bassa dispersione FLD (FLow Dispersion), che posseggono le medesime caratteristiche delle lenti alla fluorite, ed elementi SLD (Special Low Dispersion) consentono una ottimale correzione delle aberrazioni colore.Lobiettivo garantisce una superiore resa ottica a tutte le focali e in tutti i generi di ripresa. Incorpora anche il motore di messa a fuoco ipersonico HSM che garantisce una messa a fuoco AF veloce e silenziosa. In qualsiasi momento anche possibile la messa a fuoco manuale.La distanza minima di messa a fuoco, a tutte le focali, di 140cm e il rapporto dingrandimento di 1:8. Il diaframma a nove lamelle consente piacevoli effetti di sfocato. Il paraluce di serie del tipo a petali. Per luso con le fotocamere formato APS-C previsto uno speciale adattatore per paraluce che ne estende la lunghezza.SIGMA APO mm F2.8 EX DG OS HSM Di serie: Custodia, Paraluce a petali (LH), Adattatore per paraluce, Attacco per cavalletto TS-21. Caratteristiche Schema ottico - 22 elementi 17 gruppi Angolo di ripresa - gradi Lamelle diaframma - 9pz (diaframma rotondo) Apertura minima - F22 Messa a fuoco minima - 140cm Ingrendimento max - 1:8 Diametro filtri - 77mm Paraluce - Di serie a petali LH Dimensioni - 86.4mm x lunghezza mm Sigmas New APO mm F2.8 EX DG OS HSM is the second generation of this large aperture telephoto zoom lens now incorporating Sigmas Optical Stablization function, OS, our own anti-shake system which makes viewing a stabilized image in the viewfinder possible for Sony and Pentax users if chosen. Two FLD glass elements, which have the performance equal to fluorite glass have also been added along with three SLD glass elements, all which provide excellent correction of color aberration. In spite of the additions of all of these features, Sigma has managed to make the lens more compact than its predecessor, measuring only 7.8 in length. For any serious photographer where the mm focal range is often the most important second lens to own after the initial standards lens or mid range zooms. The fast aperture is extremely useful and important in low light environments or when shooting fast moving situations where a higher shutter speed demands maximum lights thru the lens. HSM ensures quiet and high speed AF as well as full-time manual focus capability. Super Multi-Layer lens coating reduces flare ghosting and assures high image quality throughout the entire zoom range. It has a minimum focusing distance of 55.1 inches throughout the entire zoom range and a maximum magnification ratio of 1:8 The rounded 9 blade diaphragm creates an attractive blur to the out of focus images. This lens is equipped with a petal-type hood. Its exceptional versatility as an all-around lens is perfect for journalists and wedding photographers. This latest version of the Sigma mm is well regarded for its outstanding image quality, light weight and ease of operation.Lens Construction 22 Elements in 17 GroupsAngle of View Number of Diaphragm Blades 9Mininum Aperture f22Minimum Focusing Distance 140 cm / 55.1 inFilter Size (mm) 77Maximum Magnifications 1:8Dimensions(Diameter x Length) 86.4x mm/3.4x7.8 in
Metabones adattatore da Canon EF a Sony E-mount Mark IV
Electronic aperture, EXIF, image stabilization, autofocus Your PayPal receipt is your order confirmation. There is no separate email confirmation until shipment takes place. This Smart AdapterTM has the following features: True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes. Powered by camera body. No external power source required. Wide open button (opposite of depth-of-field preview function) makes manual focusing easy. The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads. High performance 32-bit processor and efficient switched-mode power supply. Flocking material coating inside the inner hole to reduce the internal reflection. Enhancement on new MARK IV (MB_EF-E-BT4) vs. old MARK IV (MB_EF-E-BM4): The inner hole is painted with flocking material coating. This can further reduce the internal reflection. Disclaimer: we are NOT licensed, approved or endorsed by Sony or Canon. Description Compatibility Supported Not supported EF lenses (see below for list of tested lenses) EF-S lenses (see note 1) Image stabilization (IS) lens Electronic manual focusing (e.g. EF L II and discontinued EF L) EXIF (focal length, aperture, zoom range) P, A, S, M exposure modes Autofocus (see autofocus support section below) Distance and zoom display on VG and FS series camcorders (see note 3) Auto magnify (see note 2) Contax N mount lenses modified to Canon EF by Conurus Contax 645 NAM-1 adapter modified to Canon EF by Conurus Sigma, Tamron and Tokina lenses in Canon EF mount (see note 3) Lens correction such as peripheral shading, CA and distortion Focus confirmation "chip" (e.g. Dandelion) Stacking another lens mount adapter on top (see note 4) Lens: Tamron SP mm F/2.8 XR Di II VC Note: 1. Vignetting at corners may occur for certain EF-S lenses because they are designed to cover a 1.6x crop image circle but Sony NEX has a 1.5x crop sensor. 2. Requires lenses supporting distance information. 3. A third party zoom lens may need to be registered with the Smart Adapter first in order to detect its maximum aperture. Autofocus is disabled for most third-party lenses. 4. For example, some improperly-made M42 screw mount adapters may cause a short-circuit with the electronic contacts of the Smart Adapter and cause damage to the Smart Adapter and/or camera body. Tested Camera Bodies A7S (Mark IV supports auto "APS-C Size Capture" with EF-S lens) - Smart Adapter with firmware V0.32 or later A7R (Mark IV supports auto "APS-C Size Capture" with EF-S lens) A7 (Mark IV supports auto "APS-C Size Capture" with EF-S lens) PXW-FS7(autofocus works only in photo mode, but is disabled in movie capture mode) - Smart Adapter with firmware V0.40 or later NEX-FS700 (autofocus works only in photo mode, but is disabled in movie capture mode) NEX-FS100 (autofocus works only in photo mode, but is disabled in movie capture mode) NEX-EA50 NEX-VG900 (Mark IV supports auto "APS-C Size Capture" with EF-S lens) NEX-VG30 NEX-VG20 NEX-VG10 NEX-7 NEX-6 NEX-5R NEX-5N NEX-5 NEX-C3 NEX-3 NEX-A Tested Lenses The following lenses have been tested for autofocus operation. Minimum firmware version required shown in parenthesis. Thanks to the community for reporting success with lenses shown in bold. Canon EF primes EF L II USM EF L II USM EF IS USM EF L USM (Ver.19) EF L USM EF L II USM EF USM (Ver.18) EF USM macro (Ver.17) EF L USM (Ver.17) EF L II USM (Ver.17) EF L IS USM Extender EF 1.4x III Extender EF 2x (mark I) Canon EF zooms EF L USM fisheye EF L USM EF L (Ver.18) EF USM EF L USM II EF II (Ver.18) EF III EF L (Ver.18) EF L IS USM II EF L USM EF L IS USM EF L IS USM EF IS USM EF (non-L, not USM, push-pull zoom) (Ver.18) EF L IS USM Canon EF-S EF-S USM EF-S IS USM EF-S IS USM EF-S EF-S IS EF-S IS EF-S macro USM Sigma DC DC OS HSM (Ver. DC HSM old version (Ver.18) Tamron SP Di VC USD A007 (Ver.15) SP Di VC USD A009 (Ver.31) Tokina (full frame) (Ver.18) Tokina DX AT-X PRO SD (IF) DX (Ver.15) Note: Sigma OS HSM may occasionally run into a focus accuracy issue at the telephoto end. Manual Focus Only The following lenses have been tested with previous firmware versions with manual focus, aperture control, image stabilization (if applicable) and EXIF support. Autofocus is supported only for those lenses marked with an asterisk (*) on NEX-5R/6 Canon EF primes EF L (mark I) EF USM* EF L USM (mark I) EF (old version, non-IS) TS-E L TS-E EF USM EF II MP-E macro EF L (mark I) EF L USM Canon EF zooms EF L (mark I) EF L IS USM* EF II EF Contax N modified by Conurus Vario-Sonnar Vario-Sonnar Vario-Sonnar Planar Planar Makro-Sonnar (Ver.21) NAM-1 adapter Sigma (full frame) EX HSM EX DG HSM DG HSM (Ver. DG Macro EX DG Macro HSM Sigma DC EX ASPH EX HSM ASPH DC OS HSM EX DC HSM new version (Ver.17) Tamron VC SP SP Di LD A001 Tokina AT-X PRO Zeiss ZE ZE Distagon ZE Distagon ZE Distagon 35/2 ZE Makro-Planar 50/2 ZE Makro-Planar This Smart Adapter is also compatible with fully manual lenses which have no electrical contacts. Customers have reported success with the following fully manual lenses. Samyang Zeiss CP.2 25mm/T2.9 Zeiss CP.mm/T2.1 Note: 1. 1. Lenses not listed above are not tested and they may or may not work. We do our best to resolve any compatibility issue you find but firmware updates are by factory service only and there is a nominal shipping/handling charge. 2. Mount lens on EF Extender 1.4x or 2x first before attaching both on Metabones Smart Adapter. 3. Mount Contax 645 lens on modified NAM-1 first before attaching both on Metabones Smart Adapter. Autofocus Autofocus is supported, with the following known limitations. Autofocus speed is very slow and inadequate for most moving subjects. The autofocus speed is unfit for professional use for sure, and it would disappoint most enthusiasts. Only Canon-branded lenses introduced in or after are officially supported. Autofocus may be disabled for older Canon lenses and most third-party lenses, including most Sigma, Tamron and Tokina lenses and all Contax N lenses modified by Conurus. On NEX camera bodies in camcorder form factor (e.g. FS series), autofocus may be available only in photo mode but not in movie capture mode. Continuous AF is not supported. DMF mode (direct manual focus) is not supported. For non-camcorder camera bodies (e.g. NEX-7), during movie capture, if the subject moves to a different distance, half-press the shutter release button to re-activate autofocus and lock onto the subject again. Since autofocus speed is slow, there may be visible disruption in the resulting footage. The first two autofocus attempts are used to calibrate the lens and as a result may not lock successfully on the target. Half-press the shutter release button again and autofocus will lock successfully. Autofocus may have difficultly locking onto subjects which are very close to the nearest focusing distance of the lens. Autofocus accuracy depends heavily on the working condition of the lens. Lenses with hidden problems which may not be apparent on Canon DSLRs will lead to inaccurate and unreliable autofocus on Sony NEX. Typical problems of this kind that we have seen include an unsmooth/erratic autofocus mechanism (e.g. getting stuck intermittently at a certain focusing distance), a faulty/worn-out distance encoder or other faulty/worn-out internal sensors. Why Metabones? Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship. Contrary to the popular trend of other factories using an aluminum ring painted black on the camera-body-side, we instead take no short-cut but use precision-machined brass with chromium plating on both the camera-body and the lens sides of our adapters, in order to ensure smooth mounting, great appearance, and durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens in order to reduce wear and prevent focus errors and optical alignment issues from appearing. Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens. All Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish. Our new Smart AdapterTM series of products add industry-leading electronic interfacing technology from Canada, with true electronic control of the lens', aperture directly from the camera body. Features Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium. Satin surface finish - just like your OEM lens and camera mounts. Precise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens. Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements. Our Smart AdapterTM series adapters have the following additional features True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes. EXIF data such as lens identification, focal length and aperture.