Sigma|SKU: 750975

Sigma 100-400mm F5-6.3 DG DN OS Contemporary Lens for Fujifilm X Mount

$1,049.00
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Last Chance! Order with Expedited Shipping to receive it by December 25.

Product highlights

  • Focal Length: 100-400mm
  • Aperture Range: f/1.4 to f/16
  • Fujifilm X-Mount Lens 
  • APS-C Format
  • Angle of View: 16.2°-4.1° (APS-C) / 24.4°-6.2° (Full-frame) 
  • OS (Optical Stabilizer) function (5 steps)
  • Compatible with high-speed autofocus
  • Inner focus system and Stepping motor
  • Focus Limiter switch, AF Function Setting switch, OS switch, and Zoom Lock switch
  • Compatible with lens aberration correction with supported cameras
  • Lens Construction: 22 elements in 16 groups
  • 4 Special Low Dispersion (SLD) Elements
  • 1 Fluorite Low Dispersion (FLD) Elements
  • Super Multi-Layer Lens Coating
  • Mount with dust and splash-resistant structure
  • Filter Size: 67mm

In the box

  • Sigma 100-400mm F5-6.3 DG DN OS Contemporary Lens (FUJIFILM X Mount)
  • Case
  • Lens Hood (LH770-05)
  • Front Cap (LCF III)
  • Rear Cap (LCR II)
  • Protective Cover (PT-31)

Free standard shipping

*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

Free Local Pickup

Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Questions? We’re Here to Help

Call or email one of our experts.

The Sigma 100-400mm F5-6.3 DG DN OS | Contemporary, which was created in 2020 as the Handy Tele Master, the DG DN version of the ultra-telephoto zoom dedicated for full-frame mirrorless cameras, will now be added for the Fujifilm X Mount.

A control algorithm including AF drive and communication speed optimization has been developed specifically for X Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports AF-C (Continuous AF) and in-camera aberration correction.

Compact ultra-telephoto zoom equivalent to 600mm in 35mm format

The Sigma 100-400mm F5-6.3 DG DN OS | Contemporary for X Mount, the sixth lens to be converted to X Mount, is an ultra-telephoto zoom lens covering an angle of view equivalent to 150-600mm in 35mm format.

Despite covering the 600mm equivalent ultra-telephoto range, the lens has a compact design with a length of 199.5mm, a maximum diameter of 86mm, and a weight of 1,135g. It enables ultra-telephoto photography utilizing the compact Fujifilm X Mount system. The Sigma 100-400mm F5-6.3 DG DN OS | Contemporary, designed for full-frame mirrorless cameras, can be used with an APS-C format X Mount body to deliver extremely high descriptive performance right up to the extreme periphery.

Uncompromising image quality

The lens construction of the Sigma 100-400mm F5-6.3 DG DN OS Contemporary comprises 16 groups and 22 elements, with one FLD and four SLDs used to effectively correct aberrations and distortions. Built on the latest optical design technology and optimized for mirrorless systems, the lens ensures the same high-resolution image quality all the way to the edges. In addition, it constantly achieves high levels of optical performance and makes the most of its capabilities as a zoom lens in any condition, at every focal length from wide to telephoto, and from close-up shots to telephoto photography.

A full range of functionalities that enables smooth and easy ultra-telephoto shooting

In addition to a high-speed and smooth AF enabled by the stepping motor optimized to the latest algorithm, the Sigma 100-400mm F5-6.3 DG DN OS | Contemporary incorporates powerful image stabilization (OS) of five steps built into the lens. When combined with a camera body with image stabilization built in, the lens corrects for pitch and yaw axis rotations, providing even more powerful image stabilization.

It also features the AF function setting switch to which the user may select AF lock/AF activation, and the focus limiter switch that allows optimizing the AF range according to the purpose of shooting, Zoom lock switch that fixes the zoom ring at the widest end, preventing it from rotating and causing the lens barrel to extend under its own weight during transportation, OS Switch which the user may switch between Mode 1 for general photography and Mode 2 for motor sports and other applications requiring panning.

In addition, the Sigma 100-400mm F5-6.3 DG DN OS Contemporary supports straight zoom, which allows photographers to zoom in and out by adjusting the hood, enabling intuitive and quick view angle adjustments. It features a “Dual action zoom” which supports both straight zoom and ring zoom.

Lightweight & Compact lens body

Sigma designed a light and durable ultra-telephoto zoom lens addition to its Contemporary line. The Sigma 100-400mm F5-6.3 DG DN OS | Contemporary packs functionalities required for angles of view corresponding to focal lengths of 100-400mm in a compact, lightweight body. It is not merely about weight reduction, but the lens is durable, with careful selections to utilize the right materials in the right place. For instance, magnesium alloy is used for the part where a tripod socket is attached, which needs to be very strong. To allow for a pairing with camera bodies of different sizes, a tripod socket, TS-111 kit (sold separately) is available.

Shipping & Returns

  • Same Day Shipping


    All orders placed by 1PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

  • Free Standard Shipping


    We offer free standard shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).



  • Easy returns


    If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.


Frequently Asked Questions

How do I return an item?

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.

Will I receive a full refund when I return an item?

You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.

How many days do I have to make a return?

You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 

My item was damaged in transit. How do I place a return?

If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 

There’s an issue with my order, what should I do?

Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.

Can I exchange an item?

We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.

If I ordered a kit, do I have to return all the items?

If you ordered a kit, you must return all components and accessories to receive a full refund.

I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?

If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.

Do you offer repairs?

We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.

What is your return policy?

Most items can be returned within 30 days for a full refund. Click here to read our full return policy.