Sigma 100-400mm f5-6.3 DG DN L-Mount, TS-111, Boxed 5881966 - CM22368-001

Sigma 100-400mm f5-6.3 DG DN L-Mount, TS-111, Boxed 5881966 - CM22368-001

This Sigma 100-400mm f5-6.3 DG DN Contemporary Zoom Lens for L-Mount, #58819666, is in great condition with minor handling wear. I rate it cosmetically a (9+). The zoom ring is smooth, but the focus ring is a bit rough. The autofocus and aperture function properly and the glass is clean and clear with no haze, marks, or fungus. There are a few faint specks of dust inside, but they do not affect image quality. This lens includes a Sigma lens hood, tripod mounting foot, front & rear caps, and the original box. Please refer to the photos for details.

What our Experts Think

• Impressive reach in a compact telephoto zoom
  Covering 100–400mm, this lens delivers serious zoom power for wildlife, sports, and distant subjects—while remaining relatively lightweight and hand-holdable for its class.
• Strong optical performance across the range
  Advanced low-dispersion elements ensure high clarity, contrast, and controlled chromatic aberration throughout the zoom range.
• Effective optical stabilization (OS)
  Up to ~4 stops of stabilization helps produce sharper handheld shots at longer focal lengths—critical for telephoto shooting.
• Fast, quiet autofocus for photo & video
  Stepping motor delivers smooth, near-silent focusing with reliable tracking—ideal for both action photography and video work.
• Mirrorless-optimized DG DN design
  Built specifically for full-frame mirrorless systems, offering better balance, improved AF compatibility, and optimized optical performance.
• Feature-rich handling for serious shooters
  Includes AFL button, focus limiter, zoom lock, and compatibility with the TS-111 tripod socket—enhancing usability in the field.
• Lightweight for a 100-400mm lens
  At around 1.1kg, it’s significantly more portable than many super-telephoto options, making it great for travel and long shooting sessions.
• Consider the trade-off: variable aperture
  f/5–6.3 limits low-light performance and background blur compared to faster telephoto lenses—but keeps size and cost down.

Q&A

Q: What is the Sigma 100-400mm f/5-6.3 DG DN OS (L-Mount) best used for?
A: It’s a versatile ultra-telephoto zoom lens ideal for wildlife, sports, aviation, and outdoor photography, offering powerful reach in a relatively compact design.

Q: What image quality can I expect?
A: Delivers sharp, high-contrast images with excellent color accuracy and reduced chromatic aberration across the zoom range.

Q: Does this lens have image stabilization?
A: Yes, it features Optical Stabilization (OS) with up to 4 stops of correction for sharper handheld shots at long focal lengths.

Q: How is the autofocus performance?
A: Equipped with a fast and quiet stepping motor, ensuring smooth, accurate autofocus for both stills and video.

Q: Is this lens suitable for mirrorless cameras?
A: Yes, it’s specifically designed for full-frame mirrorless systems using the L-Mount, with optimized optics for shorter flange distances.

Q: What are the key specifications?
A: 100–400mm focal length, f/5–6.3 aperture, 22 elements in 16 groups, 9-blade diaphragm, 67mm filter size, and approx. 1135g weight.

Q: What features improve usability?
A: Includes focus limiter, zoom lock, AFL button, OS modes, and compatibility with the TS-111 tripod socket for stable shooting.

Q: Is it portable for a telephoto lens?
A: Yes, it offers a lightweight and compact design compared to traditional telephoto zooms, making it easier to carry and shoot handheld. 

Maintenance Tips

• Use Hood + Tripod Support (TS-111)
  Always attach the hood for protection and flare control. Use the TS-111 tripod collar for stability—essential at 400mm to reduce shake.
• Keep Stabilization (OS) System Safe
  The built-in optical stabilization (≈4 stops) is sensitive—avoid drops and always switch off before detaching the lens.
• Clean Large Zoom Optics Carefully (67mm)
  Use blower + microfiber only—protect coatings that reduce flare/ghosting across the 100–400mm range.
• Store Dry & Dust-Free
  With a 22-element design, moisture or fungus can severely impact image quality—use silica gel in the case.
• Avoid Zoom Pumping in Dusty Areas
  Telephoto zooms can draw in dust—minimize rapid zooming outdoors to keep internals clean.
• Use Focus Limiter & Switches Properly
  Prevent unnecessary strain on AF motor by selecting correct focus range (especially for wildlife/sports use).
• Protect Mount & Weather Seals
  The mount is dust/splash-resistant, not waterproof—wipe moisture immediately after outdoor shoots.
• Handle Weight with Care (≈1.1kg)
  Support the lens barrel when carrying to avoid mount stress on your camera body.