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Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount

Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount
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Product Code: G2426406C

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The Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount is a very compact crop-format zoom lens for stills and video content creation, which offers image quality on par with prime lenses.

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£779.00

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We Love

  • A fast standard zoom for crop-sensor RF mount cameras, which offers image quality reminiscent of prime lenses
  • High image quality throughout the zoom range with excellent sharpness at f/1.8 for both stills and video 
  • Versatile 25.5-60mm equivalent focal range is a useful zoom range for everyday stills and video content creation
  • Compatible with commonplace 67mm filters and uses an internal zoom design for good balance and handheld shooting
  • Support for video with fast and responsive AF, a de-clickable aperture ring and customisable AFL buttons
Reasons to buy from Park Cameras

Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount Summary

The Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount is a fast standard zoom lens, which is designed specifically for APS-C format mirrorless cameras, such as the Canon EOS R10, and R7. It delivers a very useful 27-64mm full-frame equivalent zoom range, which allows you to cover everything from landscapes, interiors, street and environmental portraits to short telephoto portraits and everyday photography and video. With a constant f/1.8 maximum aperture throughout the range, the lens also provides excellent low-light performance and depth of field control, which is  ideal for both photography and video content.

This lens also benefits from Sigma’s updated optical design, which includes 17 elements in 11 groups, with four aspherical and four SLD elements that maintain sharpness and reduce chromatic aberration. Arguably, this Art series zoom even offers image quality, which is on par with prime lenses, allowing you to leave the primes at home and bring just this one zoom.

It features a compact size and internal zoom mechanism, with a design that is well balanced for handheld shooting with a Canon mirrorless camera, or on a gimbal, while the 67mm front filter thread is convenient for anyone who already owns filters in this popular size. The autofocus system is driven by Sigma’s HLA (High-response Linear Actuator), which is fast, quiet and accurate, and for video the lens benefits from minimal focus breathing for manual focus pulls, with a de-clickable aperture ring for silent exposure changes.

Want to know more?

Dive into our review of the first Art series crop format zoom. Read our Review

Sigma 17-40mm F1.8 DC | Art Key Features

  • Portable and lightweight standard zoom for crop sensor cameras
  • Stills and video-ready
  • Excellent image quality comparable to a prime lens
  • HLA (High-response Linear Actuator) for fast, quiet autofocus.
  • Inner zoom maintains overall length
  • Aperture ring with click and lock switches
  • Two AFL button
  • Focus Mode switch
  • Dust and splash resistant structure
  • Undergoes Sigma’s proprietary MTF measuring system
  • Water and oil-repellent coating

Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount in More Detail

Constant aperture zoom lens with Prime Performance

The Sigma 17-40mm f/1.8 DC Art offers image quality comparable to a prime lens across the entire zoom range. It maintains an f/1.8 maximum aperture throughout, allowing for excellent low-light control with strong background separation.

Four high-precision aspherical and four SLD elements help to reduce axial chromatic aberration and sagittal coma flare, providing high resolution and accurate detail, even when shooting wide open.

Expanded Zoom Range with APS-C Coverage

Compared to the well-known 18-35mm f/1.8 Art, this updated lens extends the wide end to 17mm and reaches 40mm at the telephoto end. The result is a more versatile 27.2-64mm for Canon RF, allowing you to capture everything from landscapes to portraiture without needing to switch lenses.

Improved Handling with Lighter, More Compact Design

The 17-40mm f/1.8 is significantly lighter and more compact than its predecessor. It weighs around 535g and is compatible with 67mm threaded lens filters. The zoom also benefits from an inner zoom mechanism, so the barrel length stays constant during zooming and focusing, which improves balance on gimbals while helping to protect the lens from dust and moisture intrusion.

Lens Coatings and All-Weather Construction

Flare and ghosting are minimised thanks to the use of Sigma’s Super Multi-Layer Coating, which helps to maintain contrast and clarity in backlit conditions. A dust and splash-resistant structure also adds durability, with a water and oil-repellent coating on the front element for easier cleaning after shooting outdoors.

Optimised Autofocus and Focus System

The lens uses Sigma’s well known HLA (High-response Linear Actuator) to deliver fast, quiet and precise autofocus. This is ideal for both video and stills, especially when used on a gimbal or with eye or face detection tracking. Focus breathing is reduced too, enabling consistent framing when pulling focus during video. 

Lens Barrel Controls

An aperture ring is included for exposure control, with de-click via a switch to allow smooth, silent adjustment while recording video. A separate lock switch prevents accidental changes to the aperture during shoots. The lens also includes two AFL buttons (assignable on compatible bodies) and a manual focus switch for quick changes while shooting.

Additional Features

  • Each lens is individually tested using Sigma’s proprietary MTF measuring system

What’s in the box

  • Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount
  • Lens Hood LH728-02
  • Front Cap LCF-67 IV
  • Rear Cap LCR III 

Sigma 17-40mm F1.8 DC | Art Specifications

Lens construction

17 elements in 11 groups (4 SLD, 4 aspherical elements)

Angle of View

79.7-39.1°

Number of Diaphragm Blades

11 (Rounded Diaphragm) 

Minimum Aperture

F16

Minimum Focusing Distance

28cm

Maximum Magnification Ratio

1:4.8 at 40mm 

Filter Size

φ67mm 

Maximum Diameter x Length

φ72.9mm x 115.9mm

Weight

535g

Offers: N/A
Offer Category: N/A
Offer Product Type: N/A
Autofocus: N/A
Aperture ring: N/A
Constant Aperture: N/A
Lens CIPA Image stabilization rating: N/A
Colour: N/A
Diameter (mm): N/A
Length (mm): N/A
Weight (g): N/A
Distance scale: N/A
DoF scale: N/A
Elements: N/A
Environmental Sealing: N/A
Focus distance limiter: N/A
Focal length: 17 - 40 mm
Focus method: N/A
Filter Thread: N/A
Full time manual: N/A
Groups: N/A
Hood supplied: N/A
Lens Image stabilization: N/A
Lens mount: N/A
Lens Materials: N/A
Maximum focal length: 40.0
Maximum magnification: N/A
Maximum aperture (number): N/A
Maximum aperture (text): N/A
Max Format size: N/A
Minimum focal length: 17.0
Lens Minimum focus distance (m): N/A
Minimum aperture (number): N/A
Minimum aperture (text): N/A
Motor type: N/A
Number of diaphragm blades: N/A
Power zoom: N/A
Special elements / coatings: N/A
Tripod collar: N/A
Lens type: N/A
Wide/Tele: N/A
Lens Level: N/A
Best For: N/A
Best For Holiday and Landscape: Yes
Best For Interior and Architecture: Yes
Best For Fashion and Portrait: N/A
Best For Macro and Still Life: N/A
Best For Astro: N/A
Best For Street: N/A
Best For Wildlife and Sport: N/A
Zoom lock: N/A
Zoom method: N/A
Notes: N/A

Thinking of choosing finance?

Finance is a great way to spread the cost of your purchase. To make it easy we have teamed up with Omni, one of the UK’s leading finance specialists, so that you can apply for and complete a loan application quickly, easily and informatively.

Omni Capital Retail Finance Ltd which is a credit provider/ lender regulated by the Financial Conduct Authority whose finance options are best suited for you and your purchase.

Simply add the items you love to your basket. Once you are at the checkout select the finance option that suits you and choose Omni. The quick application form is simple and should take no more than a couple of minutes to complete and you will receive a decision instantly. Easy!

Use our finance calculator to check the impact of various loan values, terms and interest rates on the total amount you need to pay and the monthly repayments.

Representative example:

Buy a £1,200.00 camera and pay a 10% deposit of £120. You'll borrow £1,080 over 24 months with an annual interest rate of 14.9% (fixed) with a first payment of £52.04 followed by 23 monthly repayments of £51.83. The total amount payable will be £1,244.13 14.9% APR Representative.

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Check your eligibility

To be considered for finance, you will need to meet all of the following criteria:

  • Are at least 18 years old
  • Are in regular full or part-time employment (minimum 1 hour per week or £10,000 income per annum), unless you are retired and receiving a private or company pension, or you are in receipt of disability living allowance
  • Are a permanent UK resident and have lived in the UK for at least 3 years
  • Have a UK bank account capable of accepting Direct Debits
  • Have a good credit history with no late payments, Debt Relief Orders, County Court Judgments or bankruptcies.
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Please note that, due to calculations, your monthly repayment may differ very slightly from what you were expecting. Please check your monthly repayment figure before proceeding

Missed or late payments will result in fees and additional interest on your loan and can also affect your credit file and your ability to obtain credit in the future.

Credit is subject to status, UK only, 18+

Park Cameras Limited is a credit broker, not a lender and is authorised and regulated by the Financial Conduct Authority (FRN 680161). We do not charge you for credit broking services. We will introduce you exclusively to finance products provided by Omni Capital Retail Finance Ltd.

Omni Capital Retail Finance Ltd which is a credit provider/ lender regulated by the Financial Conduct Authority, Firm Reference Number: 720279. For more information please go to www.omnicapitalretailfinance.co.uk/contact/customer or visit www.omnicapitalretailfinance.co.uk.

Find out more about paying with finance here and Omni Capital Retail Finance Ltd terms here

Looking to sell your Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount?

Our Verdict

The Sigma 17-40mm f/1.8 DC Art Lens for Canon RF Mount offers a great combination of performance, speed and portability for mirrorless APS-C cameras. It provides a well-balanced 27.2-64mm equivalent zoom range with a constant f/1.8 aperture, which is rare among zoom lenses and especially useful for low-light, background separation, and creative control in both stills and video.

The optical design delivers high resolution and contrast across the frame, even when shooting wide open, with minimal distortion and good control over flare and ghosting thanks to advanced coatings.

Hybrid creators will benefit from the balanced handling and internal zoom mechanism, which avoids extension when zooming, along with a physical aperture ring, which can be de-clicked for smooth exposure adjustments. Focus breathing is also well suppressed, making this a great choice for video as well as photography. The design includes a dust and splash-resistant structure, a water- and oil-repellent front element, and two AFL buttons for customisable control.

With a lightweight 535g design and compatibility with cost-effective 67mm filters, the 17-40mm f/1.8 DC Art is ideal for creators who are looking to travel light with a zoom that has great image quality. Whether shooting professional content or personal projects, this lens brings Art series quality into a highly usable APS-C format.

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Condition guide

Our used products are subject to wear and tear in comparison to brand new products. This also applies to accessories that are supplied with the camera including batteries which may have a lower optimum performance level/life expectancy.

  • Like New – The equipment is in a condition as if you have just bought it from the manufacturer. The item is still considered to be ‘Like New’ even without the original packaging and accessories. The product has been fully tested and is in perfect working order. Lenses are optically clear. There may be light dust present that will not effect the imagery.
  • Excellent – The equipment should be close to being ‘Like New’ but there may be some small cosmetic blemishes that lower its grade. The product has been fully tested and is in perfect excellent order.
    • Cameras – Should have no marks on the LCD screen
    • Lenses – Should have no marks on the elements and optically clear. There may be light dust present that will not effect the imagery.
  • Very Good – The equipment may have some slight cosmetic wear to the paintwork and cosmetic blemishes  with only light signs of use and the product has been fully tested and is in great working order.
    • Cameras – The LCD screen may have small signs of wear that does not affect its display
    • Lenses – The mount of the lens will start to show signs of wear
  • Good – The equipment is showing more obvious signs of cosmetic wear and blemishes, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen may have scratches or wear that is starting to affect the display.
    • Lenses – May have slight dust inside that does not affect images. The mount shows signs of use.
  • Well Used – The equipment will show significant signs of wear. The paintwork will be coming away in large areas exposing the metal work, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen is heavily worn either by de-lamination or has scratches to it. Rubber grips are starting to come away from the body.
    • Lenses – The lens has dust inside that may affect images. The rubber zoom/focus ring is coming away from the barrel of the lens.

*All of our used items are listed with the accessories that are included. If they are not listed, then they will not be supplied at the point of purchase.

Used team

Peace of mind with our 6 month warranty

This product has been thoroughly tested by our team of photographers and we are happy to give a 6 month warranty as a result. The number of tests depends on the individual product but we are confident in this product having tested all the major functions. Anything that isn’t as you would expect, we then make a note of and show this in the condition notes on the page.

So you can be confident you are buying a great piece of kit that’s been looked after by a fellow photographer and seen many extraordinary sights, tested by our team of photographers and now looking forward to being set free to capture more great images!

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