Overview

The Mamiya/Sekor 135mm f/3.5 Auto is a manual focus telephoto lens, likely a Tokina-made design. Optical performance is not extensively detailed in the excerpts, but it is considered uncommon and affordable. Build quality is typical of Mamiya's TLR system lenses, which are robust but not as refined as Rollei. The lens suits photographers seeking a budget-friendly, vintage telephoto for medium format or adapted use, though its optical strengths and weaknesses are not clearly defined in the provided sources.