Tamron is emphasising the practical aspects of its new A043 model zoom for the Canon EF and Nikon F mounts. It’s a 35-150mm f2.8-4.0 Di series (for full-35mm format D-SLRs) zoom which spans medium wide-angle to short telephoto focal lengths, making it useful for a wide variety of applications, including landscapes, portraiture and architecture. This versatility is enhanced by a compact and lightweight design, a weather-sealed external construction, built-in optical image stabilisation – claimed to give up to five stops of correction for camera shake – and a minimum focusing distance of 45 centimetres across the full focal range.
The optical construction comprises 19 elements in 14 groups which includes three with low-dispersion characteristics to minimise chromatic aberrations and three hybrid aspherical types to correct for distortion. Tamron says that the 35-150mm’s optical performance “…meets requirements of high resolution 50+ megapixel D-SLRs”. It should be noted here that the zoom can be used on Canon’s and Nikon’s full-35mm mirrorless cameras via the appropriate mount adaptors. Tamron’s BBAR (Broad-Band Anti-Reflection) multi-coating is used to help reduce both ghosting and flare. As part of the zoom’s weather protection measures, a fluorine coating is applied to the exposed surface of the front element to help repel moisture and grease, and enable easier cleaning.
The new 35-100mm zoom is the next lens to employ Tamron’s high-speed ‘Dual MPU’ microprocessor which handles both the autofocusing and optical image stabilisation operations. Autofocusing adjustments are driven by an ‘Optimised Silent Drive’ (OSD) DC-type motor which is claimed to be quieter, faster and enable more precise control. Tamron says it also enables more reliable subject tracking. The lens is compatible with Tamron’s ‘TAP-In Console’ which allows for firmware upgrades and various adjustments, including to the focusing and optical image stabilisation operations.
Weighing in at 790 grams (Nikon mount version), the Tamron 35-150mm had a nine-blade diaphragm to give smoother out-of-focus effects, and it accepts 77 millimetres diameter screwthread filters. The minimum aperture range is f16 to f22. Tamron sees this lens being an ideal companion to its 17-35mm f2.8-4.0 Di OSD (Model A037) wide-angle zoom.
The Tamron 35-150mm f2.8-4.0 Di VC OSD zoom will be available in the Nikon F mount from late May and in the Canon EF mount from late June. Both versions are priced at $1399. Tamron lenses are distributed in Australia by Blonde Robot. For more information visit http://www.tamron.com.au