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Kamerastore Digital Database

Sigma 135-400mm f4.5-5.6 APO DG - Lens

Sigma 135-400mm f4.5-5.6 APO DG - Lens

Autofocus telephoto zoom lens made for Nikon F mount SLRs by Sigma. Requires an in-body focus motor to use autofocus but has an AI ridge for communicating aperture information to older bodies. Plastic and metal body available in matte black.

  • Sigma 135-400mm f4.5-5.6 APO DG
  • Minimum focus distance: 2m
  • Aperture blades: 9
  • Size: 186 x 84mm
  • Weight: 1163g (w/ tripod collar)
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Nikon F

Nikon introduced their first SLR, the Nikon F, in 1959. Alongside it they unveiled a series of lenses and a new lens mount that would carry them to professional success for the next decades. To this day, all Nikon DSLRs use the Nikon F mount.

In the beginning, Nikon lenses communicated aperture information to the body using a metal coupling fork, affectionately known as "bunny ears". Soon after, Nikon began using a similar system that automatically told the camera the maximum aperture of the lens. This Automatic Indexing (AI) system stuck around for decades in lenses and is still found on Nikon's high-end professional DSLRs even though new lenses communicate this information electronically.

With only minor compatibility issues (don't use a pre-AI lens on AI bodies or modern digital cameras), Nikon F lenses and bodies are pretty much interchangeable.

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Sigma 135-400mm f4.5-5.6 APO DG - Lens Availability & Price History
Date Sold SKU Quality Control Price Image
Available T49045 $286.00 Sigma 135-400mm f4.5-5.6 APO DG
05 Jul 2023 T46668 € 60.00 Sigma 135-400mm f4.5-5.6 APO DG - Lens Image