Tamron SP 45mm f/1.8
Tamron SP 45mm f/1.8 Di VC USD from Tamron presents a unique perspective. And pairs it with a sophisticated optical layout and VC image stabilization for enhanced image quality. One Low Dispersion element and two aspherical elements help to control a variety of aberrations. Also, distortions for consistent and even illumination and sharpness, as well as reduced colour fringing. And eBAND and BBAR coatings work to suppress flare and ghosting for increased contrast and colour fidelity.
The lens’ construction is also notable in its inclusion of various seals to protect against moisture, as well as a fluorine-coated front element to guard against fingerprints, smudging, and water.
Fast f/1.8 maximum aperture benefits working in low-light conditions and also avails selective focus control.
One LD (Low Dispersion) element helps to minimize chromatic aberrations in order to achieve greater clarity with reduced colour fringing.
Two aspherical elements correct for spherical and comatic aberrations, as well as distortion, for consistent edge-to-edge sharpness and illumination throughout the aperture range, as well as a reduction of sagittal comatic flare.
This motor also enables full-time manual focus control without having to shift into a dedicated MF mode.
Moisture-resistant construction incorporates seals around the lens mount and other areas to benefit from working in inclement conditions.
eBAND (Extended Bandwidth & Angular-Dependency) and BBAR (Broad-Band Anti-Reflection) coatings have been applied to lens elements to reduce surface reflections and prevent lens flare and ghosting for increased contrast and colour accuracy.
Rounded nine-blade diaphragm produces a pleasing out-of-focus quality when working with shallow depth of field techniques.