Lens Lab
    Nikon AF-S Teleconverter TC-17E II
    Nikon AF-S Teleconverter TC-17E II

    Nikon AF-S Teleconverter TC-17E II

    Overview

    The Nikon AF-S Teleconverter TC-17E II provides a 1.7x focal length increase with a 1.5-stop light loss. Optical performance is strong when paired with fast f/2.8 super-telephoto lenses, delivering sharp results that can surpass an upsized 1.4x TC image. However, with slower lenses like the 70-200mm f/2.8, image quality is poor at wide apertures. Build quality is solid, though the front rubber may develop haze over time. It suits professionals using f/2.8 AF-S or AF-I lenses, but is not recommended for slower lenses due to autofocus limitations.