Excellent image quality across the entire zoom range, from wide-angle to ultra-telephoto and macro
The optical construction of the B028 consists of 16 lens elements in 11 groups. The use of specialized glass elements such as LD (Low Dispersion) and aspherical lens elements effectively minimizes wide-ranging aberrations, including chromatic aberrations and distortion, thereby assuring outstanding image quality. Optimum power distribution among the individual lens element groups achieves both the optical performance and the compact size necessary for an ultra-telephoto all-in-one zoom lens that boasts 400mm focal length, and tele-macro photography ability.
Lightweight and compact design exhibits Tamrons basic philosophy for all-in-one zoom lenses
Despite being an all-in-one zoom lens that achieves 400mm ultra-telephoto, Model B028 is light and compact. A new lens barrel design utilizing three-step extensions was developed to enable the necessary elongation to produce a 22.2x zoom ratio. Compared to the conventional approach, the division into a larger number of cams ensures comfortable operation and stability while zooming. Tamrons philosophy for all-in-one zoom lenses is to allow each photographer to casually capture everyday photos with a lens of a practical size.
Equipped with the Vibration Compensation system necessary for ultra-telephotography at 400mm
Despite its compact size, Model B028 is equipped with Tamrons proprietary VC (Vibration Compensation) system, which effectively curbs camera shake under low light conditions (such as a dimly lit room or at dusk) and while taking ultra-telephoto pictures. This greatly expands opportunities for casual handheld shooting. The jitter-free stability of the viewfinder image allows for easier framing and enables the photographer to compose the subject quickly and comfortably.