Tamron SP 14mm F/2.8 Aspherical IF Autofocus Lens For Pentax K Mount Review

The Tamron SP 14mm F/2.8 Aspherical IF is an ultrawide autofocus prime designed for Pentax K-mount DSLRs. With its 14mm focal length and fast F/2.8 aperture, it targets landscape, architecture, and interior shooters who need maximum coverage and low-light capability. The aspherical element and internal focusing (IF) design aim to control distortion and maintain compactness during focus. The rear gel filter holder offers a workaround for the bulbous front element that prevents standard screw-on filters.

At $230 in excellent used condition, this lens represents an affordable entry into ultrawide shooting for Pentax users. The fast aperture is a standout for this focal length, giving it an edge over slower ultrawides in dimmer conditions or for astrophotography. However, this is a discontinued older design, and typical trade-offs include edge softness, vignetting, and the awkwardness of rear gel filters compared to modern filter-friendly alternatives. For Pentax shooters on a budget seeking ultrawide reach with solid central sharpness and low-light speed, it delivers the essentials without the premium of current-generation glass.