Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(L-Mount)

Before Updating

This firmware is for L-Mount only.
Please ensure that the firmware of the camera body is updated to the latest version.
Use a fully charged battery or connect the camera to the AC adapter.
Do not disconnect the battery or the AC adapter during the firmware update of the lens.
Ensure the power of the camera is always kept ON during the firmware update of the lens.
The lens needs to be attached to a camera to update the firmware.

The following procedure is to update the lens firmware via SIGMA fp. For firmware updates of Leica and Panasonic L-Mount cameras, please follow the instruction manual for each camera.

Ver.1.2 2024.06.20

・Improved operational stability.

Download (1.0MB)

A0060122.plf

Update Procedure

Turn on the camera after attaching the lens.
Press the MENU button on the back side of the camera body and open the setup menu.

Select “Firmware Update” from the setup menu.

After the OK button is pressed, “Camera” and “Lens” shows up. Please select “Lens”.

The firmware version that is installed in the lens will show up.
If the firmware version is “Ver.1.1”, it is necessary to download the new version and update.

Firmware Update

STEP 01

Prepare SD/SDHC/SDXC card and format in camera.
Note: Please make sure that important data is not inside your SD/SDHC/SDXC card before format.

STEP 02 For Windows

Connect the SD/SDHC/SDXC card to the computer via card reader etc. and copy the downloaded file to the root directory (the top layer of the file structure) of the SD/SDHC/SDXC card.(The copy destination is not in the “DCIM” subfolder)

(It appears differently depending on OS version.)

STEP 02 For Macintosh

Connect the SD/SDHC/SDXC card to the computer via card reader etc. and copy the downloaded file to the root directory (the top layer of the file structure) of the SD/SDHC/SDXC card. (The copy destination is not in the “DCIM” subfolder)

(It appears differently depending on OS version.)

STEP 03

Insert the SD/SDHC/SDXC card with the firmware to the camera and turn on the power.

STEP 04

Press the MENU button on the back side of the camera body and open the setup menu.

STEP 05

Select “Update Firmware” and select “OK”.

STEP 06

Select “Update Firmware” and select “OK”.

STEP 07

The message “Start firmware update?” will appear on the display.

In case the message does not appear

In case the message “Start firmware update?” does not appear on the display, please check the following notes.

The firmware update file is not installed in the card, or not in the appropriate directory.

The update file may not be in the card or the firmware may not be in the specified directory. Please repeat STEP 01.

The correct firmware is not installed.

If the card contains a firmware version older than the lens, it cannot be updated. Put the correct version of firmware into the card and start over from STEP 02.

There is not enough battery.

Use a fully charged battery or an AC adapter and start over from STEP 02.

STEP 08

Select “Yes” to start the firmware update. Shortly the update will start.

Error

If the message “Firmware update has failed” is displayed during the firmware update, please contact our customer support.

STEP 09

When “Firmware update is complete. It will restart automatically” is displayed, the update is complete.
*Do not operate the camera until the update completion message appears.

STEP 10

Check the “Information” version in the setup menu and confirm the lens version is updated to Ver.1.1

Update History

Ver.1.1 2023.10.26

Improved operational stability.

Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(Sony E-mount)

Before Updating

This firmware is for Sony E-mount only.
Please ensure that the firmware of the camera body is updated to the latest version.
Use a fully charged battery or connect the camera to the AC adapter
Do not disconnect the battery or the AC adapter during the firmware update of the lens
Ensure the power of the camera is always kept ON during the firmware update of the lens
Remove any memory card from the camera
The lens needs to be attached to a camera to update the firmware
Download the " Sony Camera Driver " from the Sony Corporation website. Please read the Sony Camera Driver installation instructions.
If you are using a Mac with Apple M series chip, please read the Procedure for Changing the Security Policy for Mac Computers with Apple Silicon.
OS other than mac OS 12 / 13 / 14 are not supported. If you are unable to update, please contact your nearest authorized SIGMA subsidiary / distributor.

Note: While the Sony Camera Driver supports macOS 11 / 12 / 13 / 14, the Lens System Software Updater program only supports macOS 12 / 13 / 14 (macOS 11 is not supported).

Ver.03 2023.10.26

Improved operational stability.

Download (2.2MB)

Update_SigmaC1850F28V3_2.dmg

Update Procedure

STEP 01 Operating the Software Program

Select the file “Update_SigmaC1850F28V2.dmg” that has been downloaded onto the computer and double-click it to operate the software program.

* Do not connect the camera to the PC at this moment.

STEP 02 Check the camera status

Turn on the camera and select “USB Connection” from the Menu. Then select “Mass Storage”.

* Some cameras do not require this process.
* Do not connect the camera to the PC in this process.

STEP 03 Connect the camera to the PC

1. Ensure the memory card is removed while the lens is attached to the camera. Then use the supplied USB Cable to connect the camera to the PC.

2. After connecting the camera to the PC properly, select the “Next” button in the “Lens System Software Updater” and the below message will appear on the display;

* The message “follow the instructions on the computer” will appear on the camera display.

In the case of “The update is not available for your lens.” message appears, check the Lens System Software Updater is compatible with the lens to update.
The message appears even when the software and the lens are appropriate, close the Lens System Software Updater and remove the cable and power OFF the camera.
Then, start over the update process from the STEP 01.

In case the message “Could not update” appears, follow the instructions in the dialog to check the status.

STEP 04 Check the firmware version of the lens

Check the “Update Information” in the bottom left and confirm if the firmware version needs to be updated to Ver. 02.
Click the “Next” button to update it.
If the lens firmware is already Ver. 02, this process can be skipped.

STEP 05 Update the lens firmware

1. After checking the “Update Information”, click the “Next” button to start transferring the software data to the camera.

Do not power OFF the camera and ensure the USB cable is properly connected during the data transfer.

2. Once the data transfer is over, the following message will appear on the display, so click the “Finish” button.

3. After closing it, the message “Updating the lens” will appear on the camera display, and the firmware update of the lens will start.

STEP 06 Finish updating the firmware of the lens

When the message “Lens update complete.” appears on the camera display, the firmware update of the lens is successfully over. Follow the instructions on the screen to close the process. After closing it, remove the USB cable from the camera and the PC.

* After the firmware update is complete, turn off the camera and remove the battery or AC adapter.
Then reinsert the battery/AC adapter and reboot the camera.

STEP 07 Confirm the updated software version

Check the “Version” from the camera menu, and confirm the lens version is updated to Ver. 02.

Update History

Ver.02 2022.12.22

AF assist function during video recording is now supported.
*Only SONY camera models with AF assist function are supported.

Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(Sony E-mount)

Before Updating

This firmware is for Sony E-mount only.
Please ensure that the firmware of the camera body is updated to the latest version.
Use a fully charged battery or connect the camera to the AC adapter
Do not disconnect the battery or the AC adapter during the firmware update of the lens
Ensure the power of the camera is always kept ON during the firmware update of the lens
The lens needs to be attached to a camera to update the firmware
OS other than Windows 10, Windows 11 are not supported. If you are unable to update, please contact your nearest authorized SIGMA subsidiary / distributor.

Ver.03 2023.10.26

Improved operational stability.

Download (4.6MB)

Update_SigmaC1850F28V3.exe

Update Procedure

STEP 01 Operating the Software Program

Select the file “Update_SigmaC1850F28V2.exe” that has been downloaded onto the computer and double-click it to operate the software program.

* Do not connect the camera to the PC at this moment.

STEP 02 Check the camera status

Turn on the camera and select “USB Connection” from the Menu. Then select “Mass Storage”.

* Some cameras do not require this process.
* Do not connect the camera to the PC in this process.

STEP 03 Connect the camera to the PC

1. Ensure the memory card is removed while the lens is attached to the camera. Then use the supplied USB Cable to connect the camera to the PC.

2. After connecting the camera to the PC properly, select the “Next” button in the “Lens System Software Updater” and the below message will appear on the display;

* The message “Follow computer instructions.” will appear on the camera display.

In the case of “The update is not available for your lens” message appears, check the Lens System Software Updater is compatible with the lens to update.
he message appears even when the software and the lens are appropriate, close the Lens System Software Updater and remove the cable and power OFF the camera.
Then, start over the update process from the STEP 01.

In case the message “Could not find a camera applicable for this update” appears, follow the instructions in the dialog to check the status.

STEP 04 Check the firmware version of the lens

STEP 05 Update the lens firmware

1. After checking the “Update Information”, click the “Next” button to start transferring the software data to the camera.

Do not power OFF the camera and ensure the USB cable is properly connected during the data transfer.

2. Once the data transfer is over, the following message will appear on the display, so click the “Finish” button.

3. After closing it, the message “Updating the lens” will appear on the camera display, and the firmware update of the lens will start.

STEP 06 Finish updating the firmware of the lens

* After the firmware update is complete, turn off the camera and remove the battery or AC adapter.
Then reinsert the battery/AC adapter and reboot the camera.

STEP 07 Confirm the updated software version

Check the “Version.” from the camera menu, and confirm the lens version is updated to Ver. 02.

Update History

Ver.02 2022.12.22

AF assist function during video recording is now supported.
*Only SONY camera models with AF assist function are supported.

Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(FUJIFILM X Mount)

Before Updating

Please be sure to use your camera body in combination with your X Mount lenses from SIGMA when updating the firmware.
Please use a fully charged battery when updating the firmware.
Please refer to the support page of FUJIFILM Corporation before updating the firmware.

Ver.1.20 2023.10.26

Improved operational stability.

Download (1.0MB)

XFUP0807.dat

Update History

Ver.1.10 2023.03.23

・Improved exposure stability during viewfinder shooting and live-view shooting.
・Improved parallax correction accuracy when using the optical viewfinder (OVF) with a camera equipped with a hybrid viewfinder.
・Improved stability of operation during AF drive.

Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(Canon RF Mount)

Before Updating

Please ensure that the firmware of the camera body is updated to the latest version.
The update cannot be performed unless the lens is attached to an EOS R series camera.
Use a fully charged dedicated battery pack or dedicated AC adapter kit for the camera.
During the firmware update, be careful not to drop the battery or disconnect the AC adapter kit.
Do not turn off the camera during the firmware update.
Do not remove the lens or operate buttons, dials, switches, etc. while updating the firmware.
Firmware updates via EOS Utility are not supported.

Ver.1.0.1 2024.12.19

・The operational stability has been improved.
・AF operation during zooming when shooting video has been improved.

Download (993.1KB)

SG017101.dmg

Update Procedure

STEP 01

Click the download button or press the right mouse button (right-click) to download.

Please check that the compressed file (SGxxx.zip or .dmg) has been saved to your specified location.

Please unzip the downloaded compressed file using the following method.

The downloaded compressed file (dmg file) will be automatically extracted and the firmware disk image will be mounted. If it is not automatically extracted, double-click the downloaded file.

When extracted, the SGxxx folder and the firmware change file (SGxxx.afu) will be created within that folder.

STEP 02

Please initialize the card using a camera.

Connect the initialized card to a computer via a card reader, etc., and copy the firmware modification file (SGxxx.afu) that you created by extracting the downloaded compressed file to the root directory of the card (the top layer of the file structure). (The destination is not a subfolder of “DCIM”).

STEP 03

Insert the card, containing the firmware, into the camera, attach the lens to the camera, turn it on and set the shooting mode to either P/TV/AV/M.

STEP 04

Press the on the back of the camera to display the menu. Then, select "Firmware Ver. X.X.X" from the [Function Settings Menu] and press the button.

^{*The way to operate the camera and display the menu varies depending on the camera, so please check the camera's user manual.}

STEP 05

The firmware versions of the camera and lens will be displayed, so select “Lens Ver. X.X.X.” and press the button.

^{* If the displayed ‘Lens Ver. X.X.X.’ is the latest version, there is no need to update the firmware.}

STEP 06

The lens firmware update screen will be displayed, so select ‘OK’ and press the button.

^{*If “Firmware Ver. X.X.X” does not appear on the screen, the firmware may not have been copied correctly to the card. Please start again from STEP 01.}

STEP 07

The file name of the firmware to be updated will be displayed, so please press the button.

^{*If the file name of the firmware to be updated does not appear, the firmware may not have been copied correctly to the card. Please start again from STEP 01.}

STEP 08

Press the button to display the progress bar and start the firmware update.

^{* Do not turn off the camera or press any buttons while the update is in progress. This may cause the lens to malfunction.
* If an error occurs during the firmware update, remove the battery and stop the operation. Check the battery charge level and the firmware on the card, and if there are no problems, start again.}

STEP 09

Check the update completion screen, select “OK”, and press the button.

STEP 10

Turn the camera off, remove the battery for at least 2 seconds, and then turn the camera back on.

STEP 11

Turn the camera on and set the shooting mode to “P/TV/AV/M”.

STEP 12

Press the button to display the menu. Select "Firmware Ver. X.X.X" from the [Function Settings Menu] and press the button to check that the [Lens Ver. X.X.X] is the latest version.

Firmware Download for Lenses

18-50mm F2.8 DC DN | Contemporary

(Canon RF Mount)

Before Updating

Please ensure that the firmware of the camera body is updated to the latest version.
The update cannot be performed unless the lens is attached to an EOS R series camera.
Use a fully charged dedicated battery pack or dedicated AC adapter kit for the camera.
During the firmware update, be careful not to drop the battery or disconnect the AC adapter kit.
Do not turn off the camera during the firmware update.
Do not remove the lens or operate buttons, dials, switches, etc. while updating the firmware.
Firmware updates via EOS Utility are not supported.

Ver.1.0.1 2024.12.19

・The operational stability has been improved.
・AF operation during zooming when shooting video has been improved.

Download (709.3KB)

SG017101.zip

Update Procedure

STEP 01

Click the download button or press the right mouse button (right-click) to download.

Please check that the compressed file (SGxxx.zip or .dmg) has been saved to your specified location.

Please unzip the downloaded compressed file using the following method.

Right-click the downloaded compressed file (zip file) and select [Extract All] from the menu that appears to unzip it.

STEP 02

Please initialize the card using a camera.

STEP 03

STEP 04

STEP 05

STEP 06

STEP 07

STEP 08

Check the update completion screen, select “OK”, and press the button.

STEP 09

Turn the camera off, remove the battery for at least 2 seconds, and then turn the camera back on.

STEP 10

Turn the camera on and set the shooting mode to “P/TV/AV/M”.

STEP 11

Press the button to display the menu. Select "Firmware Ver. X.X.X" from the [Function Settings Menu] and press the button to check that the [Lens Ver. X.X.X] is the latest version.

STEP 12

Press the button to display the menu. Select "Firmware Ver. X.X.X" from the [Function Settings Menu] and press the button to check that the [Lens Ver. X.X.X] is the latest version.