Zeiss Loxia 85mm f/2.4 ir speciāli izgatavots, lai atbilstu attēla sensoram un elektronikai Sony kompaktajām pilnkadra kamerām. Optiskā konstrukcija ar 7 lēcām un 7 grupām ir balstīta uz labi pazīstamā Zeiss Sonnar dizaina, bet tas ir optimizēts priekš digitālās fotogrāfijas un augstas izšķirtspējas sensora. Trīs no lēcām ir izgatavotas no īpaša stikla, kas neitralizē hromatiskās aberācijas.

Precizitāte un saprāts

Objektīvs satur elektroniku, kas nodod informāciju kamerai par fokusa attālumu, diafragmu un fokusa kustībām. Kamera uztver mazāko manuālā fokusa gredzena pagriezienu, kas automātiski aktivizē palielinājuma funkciju, ja kameras lietotājs to vēlas. Fokusa gredzenam ir 220o rotācijas leņķis no minimālā objekta attāluma līdz bezgalībai, nodrošinot perfektu kontroli pār definīciju. Tā ir svarīga iezīme, kad izmantojat lielu f/2.4 diafragmas atvērumu, kur ir sekls lauka dziļums. Smalki rievota gumijas virsma pirkstiem rada sajūtu, ko tikai labi veidots objektīvs var dot.

Mīksta un precīza fokusa gredzena kustība ir vēl viena iezīme, ko ļoti novērtē videoklipu filmētāji. Visiem Zeiss Loxia objektīviem ir vienādi diametri, kas atvieglo aksesuāru, kas palīdz ar fokusu, lietošanu, kā piemēram Zeiss lēcu pārnesums, profesionāls instruments, tieši šādam mērķim. Vēl viena praktiska funkcija ir deaktivizēt diafragmas klišķa apstādināšanu (click-stop), lai padarītu to par bezpakāpju.

Zeiss Loxia 85mm f/2.4 būs garākais fokusa attālums no visas Loxia saimes, kas jau ietver divus platleņķa objektīvus (21mm un 35mm) un 50mm standarta objektīvu. Tāpat kā citi „radinieki”, šis objektīvs ir izgatavots no metāla un ,izmantojot gumijas blīves ,ir aizsargāts no putekļiem un mitruma.

Zeiss Loxia 2016.gada saime:

ZEISS Loxia 21mm f/2.8
ZEISS Loxia 35mm f/2
ZEISS Loxia 50mm f/2
ZEISS Loxia 85 mm f/2.4
Zeiss Loxia 85mm f/2.4 tehniskie rādītāji:

Fokusa garums: 85mm
Diafragmas diapazons: f/2.4 – f/22
Lēcu elementi/grupas: 7/7
Fokusa diapazons: Manuālais ar 220o rotācijas leņķi (no minimālā objekta attāluma – bezgalība)
Minimālais fokusa attālums: 80 cm
Brīvais darba attālums: 68,5cm (starp skatu un priekšējo lēcu)
Leņķiskais redzeslauks (diagonāle): 28,63o
Attēlu attiecība: 1:7.2
Filtra lielums: 52mm
Garums (bez objektīva vāciņa):94,8 mm
Diametrs: 62,5 mm
Svars: 594g
Aksesuāri (iekļauts): Objektīva vāciņs, metāla objektīva pārsegs
Kopīgās Zeiss Loxia iezīmes

Savienojams ar Sony kamerām,klasiskais 35mm sensora formāts (pilnkadra)
Metāla cilindrs, kas izturīgs pret laikapstākļiem
Manuālais fokuss ar lielu rotācijas leņķi, kas nodrošina lielu fokusēšanās precizitāti
Elektronisks interfeiss pārsūta EXIF datus un fokusa kustību uz kameru
Visiem Loxia objektīviem identiski diametri
Iespējams uzstādīt bezpakāpju diafragmas iestatījumus
52mm filtra diametrs
Savienojams ar Zeiss Objektīva Pārnesumu, profesionālu fokusēšanas instrumentu

ZEISS Loxia 2.4/85

Portable, inconspicuous, powerful – fitting ways to describe the ZEISS Loxia 2.4/85 telephoto lens. The completely reworked optical design has been specially developed using seven lens elements for the high-resolution, full-frame sensors of the mirrorless Sony α series. The Loxia 2.4/85 supplements the focal lengths of the ZEISS Loxia product family in the short telephoto lens segment.

Despite its compactness the handy ZEISS Loxia® 2.4/85, a moderate telephoto lens offers outstanding image performance – across the entire image field of a full-frame sensor. Be it for a portrait or a street or landscape shot, this inconspicuous lens is great for helping you master these photographic disciplines.

ZEISS Loxia lenses were specifically designed for Sony α7 cameras. This means that they can make the most of the mirrorless, full frame system, while giving you all the creative possibilities of ‘classic’ photography with manual focus at the same time.

And that’s not all: ZEISS Loxia lenses also provide everything you need to shoot high quality video, such as the unique DeClick feature for smooth adjustment of the aperture, for example.

A lens design with relatively few glass-to-air surfaces, invented by Dr. Ludwig Bertele at ZEISS in 1930 to provide the fastest lenses of that day for 35 mm photography offering speeds up to f/1.5 and well controlled veiling glare. This is where the name comes from, containig the German word for sun, ’Sonne’, the symbol of utmost brightness.

DeClick feature
One completely new feature of the Loxia lens is that you can ‘declick’ the aperture’s locking mechanism using a tool (supplied) and an adjustment screw on the bayonet surface. This means that for video applications, you can smoothly eliminate any unwanted differences in brightness as you pan the camera. This feature can also be used with other video systems whose size makes them suitable for adaption.

Precise manual focus
Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. ZEISS lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane. The precise engraving in meter and feet, and the depth of focus scale provide additional support for manually focusing.

Virtually distortion-free optics
Dramatic perspectives and a view from extraordinary image angles – ZEISS lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image center, would be reproduced with a curved shape.  This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.

High-grade full-metal casing
Tangible quality that holds its value is what qualifies ZEISS lenses for decades of hard use. A precision-engineered full-metal casing, grippy focus and aperture rings made of metal, and a tough front bayonet and filter screw guarantee stunning photographic results. A special sealing ring on the bayonet also protects the interface between the camera and the lens.

Immensely compatible
The ZEISS Loxia lenses are suitable for use with the mirrorless Sony Alpha cameras with E-mount and were optimized for sensors up to full 35 mm format (24 x 36 mm). With the ZEISS Loxia lenses, the aperture is controlled manually. This allowed the integration of the so-called DeClick feature of the mechanical aperture ring. The cameras feature the corresponding automatic exposure control (A) and manual exposure control (M).

Specifications

Focal length

85 mm

Aperture range

f/2.4 – f/22

Focusing range

0,8 m (31.49") - ∞

Number of elements/groups

7 / 7

Angular field, diag./horiz./vert.

28,63° / 24,05° / 16,23°

Coverage at close range

(10.15" x 6.80")

Filter thread

M52 x 0.75

Dimensions (with caps)

108 mm (4,25")

Weight

594 g (1.31 lbz)

Camera mounts

E-Mount