Lens Lab
    Promaster Spectrum7 60-300 mm f/ 4-5.6 UMCS
    Promaster Spectrum7 60-300 mm f/ 4-5.6 UMCS

    Promaster Spectrum7 60-300 mm f/ 4-5.6 UMCS

    60–300mm · f/4–5.6

    Overview

    The Promaster Spectrum7 60-300mm f/4-5.6 UMCS offers surprising sharpness and decent color across the focal range with minimal chromatic aberration, thanks to its MC coating. However, zoom creep occurs when held upside down, and the minimum focusing distance of about 2 meters is too far for close-ups. It is average in weight and easy to handle, though the barrel extends noticeably at 300mm. The lens suits budget-conscious photographers seeking a versatile telephoto zoom for general use, particularly those with Pentax K-mount cameras.