The Perfect Lens for Portraiture
Just as a painter instinctively reaches for the right brush, a portrait artist reaches for an 85mm lens. The focal length is ideal for producing a pleasing image with true-to-life facial features in accurate proportion. While a wide-angle lens makes close objects appear larger than they are, and longer telephotos compress and flatten features, the 85mm medium telephoto is just right. Plus the working distance between you and your subject is perfect for making the personal connection that’s often missing when using a zoom.
Функции и характеристики
The SP 85mm F/1.8 is the world’s first* lens with a fixed focal length of 85mm and a fast aperture of F/1.8 that’s equipped with the VC system. Camera movement—often too minute to be perceptible to the photographer—is the leading cause of unpleasant photographs. In addition, newer DSLR cameras with higher pixel densities are more susceptible to subtle camera shake.
This technology makes it possible to take photographs handheld in dim light and to make optimal use of slower shutter speeds and increased depth-of-field without extreme increase of the camera’s sensor sensitivity (ISO equivalent). This is especially important in portraiture because lighting is often low and the photographer needs the spontaneity of not using a tripod or disruptive flash units.
* Among 85mm F/1.8 interchangeable lenses for full-frame DSLR cameras as of January 2016. Data source: Tamron
To meet and surpass the needs of modern cameras with high resolution and high pixel densities, the SP 85mm F/1.8 employs LD and XLD low dispersion glass elements to correct critical aberrations. Superb optical design makes color fringing inconspicuous, achieving sharp and clear image quality and enabling outstanding performance at any illumination level. eBAND and BBAR coatings work in concert with wide-ranging anti-reflection techniques to increase light transmission, reduce flare and ghosting, and to prevent reflections inside the lens barrel.
The SP 85mm F/1.8 is designed to provide tack-sharpness of the subject for stunning clarity and flawless image quality. At the same time, Tamron’s design philosophy embraces the notion that photographers—particularly portrait photographers—use background blur, bokeh , as a creative element to concentrate emphasis on the subject. Through numerous simulations conducted for wide-ranging blur effects, such as a gentle, melting transition from the focused to the out-of-focus areas, Tamron has created a soft and natural blur effect that achieves perfect harmony with the inescapable sharpness.
Moisture-Resistant Construction, including special seals at areas of possible ingress, provides added protection. A highly durable Fluorine Coating, applied to the surface of the top element, prevents condensation and repels smudges, grime and fingerprints.
Допълнителната „Tamron TAP-in“ конзола осигурява USB връзка с вашия персонален компютър, което ви позволява лесно да актуализирате фърмуера на вашия обектив, както и да персонализирате функции, включително фини настройки на AF и VC.
- Фокално разстояние [мм] 85
- Максимална диафрагма F/1.8
- Минимално фокусно разстояние [м] 0,8
- Максимално увеличение 1:7,2
- Размер на филтъра (мм) 67
- Тегло 700гр.
- Групи / Елементи 9/13
- Зрителен ъгъл 28°33′-18°39′
- Брой ламели 9
- Минимална диафрагма F/16
- Диаметър / Дължина (мм) 84.8 / 91.3