Change your mind? Change your mount.Introducing Lens Mount Conversion, only from Sigma

Service: Mount Conversion Service

We believe that a lens is not only a key device for photographic expression,
but also an important resource for photographers.
It has been our hope to develop the lens system that is genuinely photographer-centered,
and you can enjoy it for a longer period of time.
As an experienced lens manufacturer that has been creating a diverse range of interchangeable
lenses, our desire and know-how is crystalized in this unique paid service, “Mount Conversion Service” *.
With this service, the mount of your owned SIGMA lenses can be converted to another
mount system, depending on the specification of the camera bodies.

* This “Mount Conversion Service” is different from a normal repair. In order to apply for the service, please contact your nearest authorized subsidiary / distributor of SIGMA

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Service: Service Concept

Does the camera define the value of your lenses?

The lens you have chosen amongst the others has been used to capture various scenes. The quality that makes taking exact shots you desired possible, the handling you are so familiar with – we are sure that these elements have become a unique character of the lens and have made you feel an even deeper attachment.

Interchangeable lens camera systems appear to be superior in offering photographers more options, allowing them to change lenses freely and have more flexible photographic expression. Nevertheless, each interchangeable lens is limited with the specification of different camera systems. In other words, you can’t use those lenses if you change it from one type to another.

Although lenses are the key devices to create photographic expression, it is a shame that there is no system that purely sets the standard based on the functions and individual qualities of interchangeable lenses.

A lens is your precious resource. Carry it with you longer.

SIGMA has never stopped thinking of ways to create lenses that ensure photographers get the shots they desire and to use for many years, and that they truly require for their own photographic expression.

As an experienced lens manufacturer that has been creating a diverse range of interchangeable lenses, we are proud to introduce the “Mount Conversion Service”. With this service, the mount of your current SIGMA lenses can be changed to another mount of your choice. This service gives a new life to your favorite lenses when you wish to use it on a different camera body.
* This service will be available from September 2nd, 2013

To ensure your lenses remain yours to use for many years.
To achieve a lens system that reflects your preference and interest.
We hope you will make use of the SIGMA “Mount Conversion Service”.

For further information, please click the link below

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Service: Service Overview

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.

Contents of Service:

1) Subject parts to change

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 August, 2013)
35mm F1.4 DG HSM、120-300mm F2.8 DG OS HSM
30mm F1.4 DC HSM、17-70mm F2.8-4 DC MACRO OS HSM / DC MACRO HSM、 18-35mm F1.8 DC HSM

[Interchangeable lenses for Mirrorless cameras] (As of August)
19mm F2.8 DN、30mm F2.8 DN、60mm F2.8 DN

Interchangeable lenses for SLR / DSLR cameras (DC / DG lens) are eligible for conversion to the following mount system.

Interchangeable lenses for Mirrorless cameras (DN lens) are eligible for conversion to the following mount system.

* 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) Date to launch the service

September 2nd, 2013 (in Japan)

3) Cost

This is a paid service regardless of the warranty period of the product.
For further inquiry, please contact your nearest authorized subsidiary / distributor of SIGMA.

4) How long the service takes

It is dependent on countries and territories.
In Japan, it is expected to take about 2 weeks. (Please confirm it when you apply for this service.)

5) How we conduct the service

Please contact your nearest authorized SIGMA service station. For this service, it is essential to have necessary optimization and adjustment at the Aizu factory after changing the mount and the internal core system. Thus, please contact your nearest authorized service center and send your lens to our partners in respective countries.

6) Warranty Period

The warranty period after the Mount Conversion will depend on each country’s law.
We will check and ensure that the optical performance of all mount converted products retains the same using our original measurement system A1 (Aizu 1).

7) Products not eligible for the service

Tele-converter, USB DOCK and other accessory parts are not eligible for this Mount Conversion Service.

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Service: FAQ

With this service, can I exchange my lens for a new lens?

A1 No, we will only replace the key components and mount part of your lens. Optimization will be performed so that you can use it on your new camera.

Are all the Sigma lenses supported by this service?

Only Sigma lenses from our new three product lines (Contemporary, Art and Sports) will be eligible.

Can I request to convert to any mount of my choice?

Yes, as long as the lens in the requested mount has been released by SIGMA as a product.

Is it possible to revert to the original mount?

Yes, please request the paid service again, and we will proceed another mount conversion as a new request with new charge.

Are there any restrictions of function after the mount conversion?

No. The function of the lens will be same as the product with the mount that has been released by SIGMA.

Is there any risk of performance degradation after the mount conversion?

Please be assured that mount conversion will be completed on the basis of the measuring system and concept exactly the same as our new three product lines.

How much does Mount Conversion Service cost? (with warranty & outside of warranty)

This is a paid service regardless of warranty. Please contact your nearest authorized subsidiary / distributor of SIGMA.

How long will mount conversion take?

It will depend on the days required for general repair in each country.

When I consider to get the mount of my lens converted in the future, would it be still possible to do after a certain time from the point of my purchase?

We will support lenses for 5 years after they have been discontinued.

How can I request this service?

Please contact your nearest country representative directly.

After converting the mount, will you return the original parts you’ve removed?

Due to environmental and safety concerns, we are not going to return them to customers.
For further inquiry regarding local regulation, please contact your nearest authorized subsidiary / distributor of SIGMA.

Is it possible to convert the mount system of a lens multiple times?

Although it is possible, there might be limitations depending on the condition of your lens. Please contact your nearest representative for the further details.

To apply for the service, can I contact the shop where I bought my lens?

Please contact your nearest authorized subsidiary / distributor of SIGMA.

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