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Sigma|SKU: 612965

SIGMA 28-45mm F1.8 Maximum Aperture DG DN Art Lens with Internal Zoom (Sony E Mount)

$1,489.00 $1,595.00

Last Chance! Order with Expedited Shipping to receive it by December 25.

Product highlights

  • World's first full-frame, F1.8 max aperture zoom lens

  • Optical performance comparable to that of a prime lens
  • Delivers clear images with minimal coloration
  • High-speed AF
    Nano porous coating
  • Super multi-layer coating
  • Minimized ghosting and flare
  • Suppressed focus breathing
  • Reduced axial chromatic aberration
  • Compatible with AF assist
  • For Sony E mount

In the box

  • SIGMA 28-45mm F1.8 Maximum Aperture DG DN Art Lens with Internal Zoom (Sony E Mount)

  • Case
  • Lens Hood LH878-06
  • Front Cap LCF-82 III
  • Rear Cap LCR II

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

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The SIGMA 28-45mm F1.8 DG DN Art Lens was developed as a full-frame successor to the SIGMA 18-35mm F1.8 DC HSM Art (for APS-C DSLR cameras), which in 2013 became the first lens in the world to achieve F1.8 throughout the entire zoom range. While offering the convenience of a zoom, this new lens does not compromise on optical performance. By effectively arranging 3 aspherical lens elements and 5 SLD glass elements, this lens suppresses various aberrations and achieves performance comparable to single focal length lenses, even surpassing the SIGMA 24mm F1.4 DG DN Art and SIGMA 50mm F1.4 DG DN Art, which have an established reputation for their optical quality. In particular, the 28-45mm F1.8 DG DN Art focuses on suppressing axial chromatic aberration, which is often noticeable in large-aperture lenses, to achieve images with minimal coloration on both the focus plane and bokeh, and to demonstrate high optical performance from open aperture. The minimum focusing distance is 30cm (11.8 inches) throughout the entire range, and the maximum magnification ratio of 1:4 is achieved at the 45mm focal length. Featuring internal zoom and HLA (High-response Linear Actuator) autofocus, and an optical design that minimizes focus breathing, the SIGMA 28-45mm F1.8 DG DN Art is well-suited for video work, including gimbal setups, thanks to its balanced design. The click or de-click switch and lockable aperture ring are designed to suit a variety of personal capture preferences and the dust- and splash-resistant design also makes it suitable for shooting stills and video out in the elements.
World's First Full-Frame F1.8 Maximum Aperture Zoom Lens
SIGMA has successfully developed the world's first full-frame zoom lens with a maximum aperture of  F1.8. The SIGMA 28-45mm F1.8 DG DN Art incorporates an inner zoom mechanism, a minimum focusing distance of 30cm across the entire zoom range, and a filter size of 82mm phi. Despite its advanced feature set, the lens weighs less than 1kg, making it a portable and versatile option for either hand-held shooting or a gimbal setup.
Constant Maximum Aperture of F1.8
Once a privilege reserved only for prime lenses, the maximum F1.8 aperture allows full-frame camera users to expose hand-held in low light and produce beautiful bokeh while enjoying the flexibility of a zoom. This unique optical achievement has been created through SIGMA's accumulated optical design experience and advanced production technology at the company's sole production base in Aizu, Japan.
Practical and Stable Inner Zoom
Employing an inner zoom mechanism, the overall length of the lens remains constant when the focal length or focus distance changes. This means the lens is easy to use when shooting hand-held, highly stable when mounted on a tripod or gimbal, and more resistant to dust and water contamination.
Consistent Close Focus 
The minimum focusing distance is a constant 30cm across the entire zoom range, with a maximum magnification ratio of 1:4 at the telephoto end, providing excellent close-up shooting capabilities. As well as offering precise focus in confined spaces, the lens can therefore be used close to a subject without affecting sharpness when using the zoom. 
Premium Build at a Lighter Weight
By rights, such a fast zoom should be big and heavy, but while the lens's rigidity and durability protect its sophisticated optical design, this is achieved at a weight of less than 1kg. What's more, this reliable photographic tool uses a versatile filter size of phi 82mm, meaning no compromise in portability or convenience.

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. 

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