The new B023 has a zoom range of 10-24mm, the widest among ultra-wideangle zoom lenses for the APS-C cameras. It's the 35mm equivalent of covering the very wide angle range from 16mm ultra-wide angle to 37mm wide angle. With just one lens, photographers can enjoy diverse wideangle expressions, from dynamic landscapes far beyond the normal human field of vision to simple, casual snapshots. This is the perfect ultra-wideangle zoom lens for every photographer, typically after their standard zoom lens and telephoto zoom lens.
The zoom range is 2.4x, and with the maximum difference in the angles of view equaling 48 degrees at 24', a wide variety of photographic functionality is unleashed, from full-blown 10mm ultra-wide angle to 24mm which is good for casual snapshots- allowing for wideangle pictures with a very natural feel.
The optical design of the new Model B023 consists of 16 lens elements in 11 groups. Special lens elements are utilized in an optimum configuration of one LD (Low Dispersion) lens element, one XLD (eXtra Low Dispersion) glass element, one molded glass aspherical element, and one hybrid aspherical lens. While curbing an increase in the size of the optical system, the new lens very effectively compensates for a wide variety of aberrations in the entire zoom range, including transverse chromatic aberration, comatic aberration and distortions that tend to become more prominent with a wideangle lens.
Tamron's highly regarded BBAR (Broad-Band Anti-Reflection) Coating and the optical design paying close attention to internal reflections in the lens barrel also curb the effects of harmful light rays that tend to occur with a wideangle lens, achieving excellent resistance against ghosting and flare seen in backlighting situations.
Outstanding Contrast Reproduction Performance
Even in high contrast situations, the new B023 delivers excellent edge-to-edge performance, and with its superior ability to capture a broad range of tones and gradations, gives rich expression to fine details in both the highlight and shadow regions.
Minimum Object Distance of 9.4"
In addition to capturing wide views, wideangle lenses provide unique, creative expressions by capitalizing on inherent perspective when used for close-ups, so a shorter minimum object distance is an important and useful feature. With a minimum object distance of 9.4 inches, users can take full advantage of spectacular background blur effects by opening the diaphragm.
Achieving Excellent Resistance against Ghosting and Flare
Tamron's original BBAR (Broad-Band Anti-Reflection) Coating is highly acclaimed for its superior backlit performance, increasing light transmission and preventing lens surface reflections and dispersion. In addition, reduction of internal reflections in the lens barrel (including the coating and the layout with a light-shielding groove) provides thorough resistance to ghosting and flare and delivers flawless, crystal clear images.
Vibration Compensation for Low-Light Applications
In response to the requests of many customers who have asked the company to equip a wideangle lens with image stabilization, we have now installed Tamron's acclaimed VC (Vibration Compensation) on the new Model B023. Optimizing the actuator and the control algorithm has made it possible to incorporate the VC, while maintaining the compact design of the previous Model B001. The VC especially enhances the photographer's freedom in handheld shooting at dusk or in a dimly lit room, and under other relatively low light conditions, as the mechanism proves particularly effective in the shooting conditions with slower shutter speeds.
- The B023 provides outstanding resolving power across the entire zoom range and provides clear and crisp landscape photography.
- Multiple aspherical lens elements placed in optimum positions improve the compensation for various aberrations and enhance resolution.
- The cutting-edge optical design minimizes distortion and ensures very natural expressions for a wideangle lens.
- The peripheral (edge-to-edge) light fall-off is very natural-looking at maximum aperture, and even better when stopped down one or two stops.
Focal length - 10-24mm
35mm equivalent - 15.5-37.2mm
F number - 3.5-4.5
Angle of view - 108.44 - 60.2 degrees
Optical construction - 16 elements in 11 groups
Special glass materials - 1 LD /1 XLD 1ASL
Special coatings - Fluorine Coating
MOD - 0.24m
Max. magnification ratio - 1:5.3
Diaphragm number - 7
Filter size - 77mm
Maximum diameter - 79.4mm
Length - 84.6mm
Weight - 440g
Focus method - IF
Image stabilization - 4 stops to be
AF method - HLD
Compatible Mount - N/C
Hood - Flower-shaped