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  • All lenses from Sigma’s new Art, Contemporary, and Sports lines are eligible for conversion
  • All conversions done at Sigma’s Aizu factory in Japan to ensure the highest level of quality control
  • Converted lenses are fully compatible with the new camera system, with no loss of performance or functionality
  • Each converted lens must pass the same rigourous testing as all of Sigma’s new lenses before it leaves the factory
  • Changing your mount will not affect the seven-year Canadian warranty on your lens
  • Available starting September 2nd, 2013 (a fee will be charged for each conversion)

All lenses from SIGMA’s new three product lines (Art, Contemporary, Sports) will qualify for this paid “Mount Conversion Service”. It enables customers to convert the mount of their current lenses, and we will change the relevant parts for a different mount and its internal core system accordingly.

1) Eligible Lenses
Currently, the following lenses from those three product lines (Art, Contemporary, Sports) are eligible for this service.
[Interchangeable lenses for SLR / DSLR cameras] (As of April, 2016)
20mm F1.4 DG HSM
24mm F1.4 DG HSM
30mm F1.4 DC HSM
35mm F1.4 DG HSM
50mm F1.4 DG HSM
18-35mm F1.8 DC HSM
24-35mm F2 DG HSM
24-105mm F4 DG OS HSM
50-100mm F1.8 DC HSM
17-70mm F2.8-4 DC MACRO OS HSM / DC MACRO HSM
18-200mm F3.5-6.3 DC MACRO OS HSM / DC MACRO HSM
18-300mm F3.5-6.3 DC MACRO OS HSM / DC MACRO HSM
150-600mm F5-6.3 DG OS HSM
120-300mm F2.8 DG OS HSM
150-600mm F5-6.3 DG OS HSM

[Interchangeable lenses for Mirrorless cameras] (As of April, 2016)
19mm F2.8 DN
30mm F2.8 DN
60mm F2.8 DN
30mm F1.4 DC DN

For the most up-to-date list of compatible lenses, please visit: Sigma Mount Conversion Service

Interchangeable lenses for SLR / DSLR cameras (DC / DG lens) are eligible for conversion to the following mount system.
SIGMA, SONY, NIKON, PENTAX, CANON

Interchangeable lenses for Mirrorless cameras (DN lens) are eligible for conversion to the following mount system.
MICRO FOUR THIRDS, SONY E-mount
* It is not possible to convert a lens to a mount that SIGMA has not released.

The exclusive specification, such as OS function, is subject to adjustment after converting the mount.

2) Cost
This is a paid service regardless of the warranty period of the product.

Mount Change Service Level Mount Change Service Price
Level 1
(DN) 19mm, 30mm, 60mm
$120.00
Level 2
Art 35mm, Art 30mm, Contemporary 17-70mm Macro, Art 18-35 f1.8
$185.00
Level 3
Sport 120-300mm
$315.00
Prices are subject to change.

3) How long the service takes
Lenses will take approximately 2-3 weeks to complete. (Please confirm timelines when you apply for this service.)

4) Products not eligible for the service
Tele-converter, USB DOCK and other accessory parts are not eligible for this Mount Conversion Service.

Downloads



Download the Service Form Here

F.A.Q’s


With this service, can I exchange my lens for a new lens?
No, we will only replace the mount and related components on your lens, which will allow you to use the lens on your new camera.

Are all Sigma lenses supported by this service?
No, only lenses from Sigma’s three new product lines (Art, Contemporary, and Sports) are eligible.

Can I request the conversion of my lens to any mount of my choice?
Yes, as long as the lens has been released by Sigma in the requested mount.

Is it possible to revert to the original mount?
Yes, simply submit another request for the service; the conversion will be processed as a new request and will be charged accordingly.

Are there limitations on the function of the lens after the mount conversion?
No, the lens will function the same as any lens released by Sigma with the corresponding mount.

Is there any risk of performance degradation after the mount conversion?
No, your lens will be put through the same stringent quality-control testing as all of Sigma’s new lenses to ensure the highest level of performance.

Is there a cost for the Mount Conversion Service if my lens is still under warranty?
This is a paid service regardless of warranty coverage ($120 to $315, depending upon the lens being converted). Please read the chart under ‘Pricing’ on this page for more information.

How long will mount conversion take?
You will receive an estimated completion date when you submit your request.

Is there a limit on how long after I purchase my lens that I can have the mount converted?
Sigma will support lenses and offer the conversion for 5 years after they have been discontinued.

How can I request this service?
Please contact your nearest authorized Canadian Sigma retailer or click on the PDF under the Downloads section of this page.

After converting the mount, will you return the original parts you’ve removed?
No, parts will not be returned.

Is it possible to convert the mount of a lens multiple times?
Although it is possible, there may be limitations depending on the condition of your lens.

To apply for the service, can I contact the store where I bought my lens?
You may contact any authorized Canadian Sigma retailer or visit www.SigmaCanada.ca/MCS to apply for Sigma’s Mount Conversion Service.

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