Sigma
Sigma 100-400mm f/5-6.3 DG DN Sony E Telephoto Lens
★★★★★
f/5
Tack-sharp wildlife and sports from 100 to 400mm on Sony E-mount mirrorless — in a lens light enough to handhold all day.
$1,034.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
INCLUDED - Sigma 100-400mm Lens, Lens Cap, Rear Cap, Lens Hood, Protective Cover, 4-Year Warranty, Hoya UV CPL Filters, Cleaning Kit, Microfiber Cloth for immediate use.
SUPERB IMAGE QUALITY - Experience exceptional sharpness and clarity across the entire zoom range, capturing every detail with stunning precision on your Sony E-mount.
VERSATILE FOCAL LENGTH - The 100-400mm range offers flexibility for various subjects, from wildlife to sports, ensuring you never miss a shot with your Sony camera.
ADVANCED AUTO-FOCUS - Enjoy fast, accurate, and silent focusing performance, ideal for capturing dynamic action and video with your Sony E-mount camera system.
COMPACT LIGHTWEIGHT - Designed for comfortable handling and portability, this lens is perfect for all-day shooting without fatigue on your Sony mirrorless body.
Specifications
Focal Length
100–400mm
Maximum Aperture
f/5 (100mm) – f/6.3 (400mm)
Mount
Sony E-mount (FE, full-frame compatible)
Image Stabilization
OS (Optical Stabilizer)
Autofocus Motor
Linear motor (silent)
Format Coverage
Full-frame (35mm)
Filter Thread
Not specified (verify before filter purchase)
Included
Lens cap, rear cap, lens hood, protective cover, Hoya UV & CPL filters, cleaning kit, microfiber cloth
Warranty
4-year
Pros & Cons
👍 Pros
- OS (Optical Stabilizer) combined with Sony body IBIS delivers effective image stabilization that makes 400mm handholding genuinely viable in good light.
- Native Sony E-mount DG DN design enables full compatibility with Sony's phase-detect AF, including animal and bird eye-tracking on compatible bodies.
- 100–400mm range covers bird portraits at 100mm through distant wildlife at 400mm in a single lens, eliminating mid-session glass changes.
- Linear AF motor operates silently, preserving usability for hybrid photo/video shooters without motor noise bleeding into audio.
- Compact and lightweight design relative to aperture class reduces fatigue during full-day wildlife and field sessions compared to larger telephoto primes.
👎 Cons
- f/6.3 at 400mm is a meaningful light limitation — overcast or backlit shooting scenarios require high ISO settings on all but the most capable Sony sensors.
- Autofocus tracking, while reliable, trails Sony's native G Master telephoto optics for erratic fast-moving subjects like birds in flight in challenging light.
- Variable aperture requires re-metering when zooming from 100mm (f/5) to 400mm (f/6.3), which can produce exposure inconsistencies during zoom pulls in video.
- Minimum focus at 400mm (~1.5m) makes the lens impractical for small stationary subjects — insects and macro-scale wildlife exceed its close-focus capability.
- Weather sealing is present but not specified to the same standard as Sony G Master lenses, making prolonged rain shooting a risk management decision.
Frequently Asked Questions
Does this lens include optical image stabilization, and how effective is it for handheld telephoto work?
Yes, the Sigma 100-400mm f/5-6.3 DG DN includes OS (Optical Stabilizer). At 400mm on a full-frame Sony body, even a moderate stabilizer makes a substantial difference for handheld work — reducing camera shake for static subjects. Combined with Sony body IBIS on compatible cameras, the combined stabilization is genuinely useful for wildlife and sports in good light.
How well does the autofocus perform with Sony's phase-detect AF systems?
The DG DN variant was designed natively for Sony E-mount using a linear autofocus motor, making it compatible with Sony's fast on-sensor phase-detect AF. It drives focus silently, which matters for video work. Eye/animal AF on Sony bodies like the A7 IV and A7R V works with this lens — tracking performance for birds and moving subjects is reliable though not quite at par with Sony's own G Master telephoto lineup.
What is the minimum focus distance at 400mm, and does it work for close subjects like small birds or insects?
Minimum focus distance varies across the zoom range — at 400mm, expect approximately 1.5 meters. This is adequate for mid-sized wildlife but not for true macro or very small subjects. The lens is optimized for working distances of 5–30 meters where telephoto compression and subject isolation are the primary goals.
Is this lens suitable for full-frame Sony bodies, or is it designed for APS-C?
The DG DN designation confirms this is a full-frame (FE-mount) lens — it covers the full 35mm image circle. It also works on APS-C Sony E-mount bodies (A6xxx series), where the 400mm equivalent becomes approximately 600mm, providing even greater reach for wildlife and bird photography.
How does the f/5-6.3 variable aperture affect shooting in overcast or low-light conditions?
At 400mm, the maximum aperture is f/6.3. In overcast conditions, you'll need to push ISO to maintain shutter speeds fast enough to freeze motion — 1/1000s at f/6.3 on a bright overcast day may require ISO 800–1600 on most Sony bodies. This is a meaningful limitation for indoor sports or dawn/dusk wildlife. On modern Sony full-frame sensors with strong high-ISO performance, it's manageable; on entry-level bodies, it constrains the shooting envelope.
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