Leica SL PRIME APO LENS FIRMWARE-UPDATE v4.1

LBJ2
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p.1 #1 · Leica SL PRIME APO LENS FIRMWARE-UPDATE v4.1

LENS FIRMWARE-UPDATE 4.1 **Note this update if for SL Prime APO LENS firmware, not camera firmware update

Installation instructions and Lens firmware download via SD Card here:

https://leica-camera.com/en-int/downloads?field_media_document_language=984&field_media_document_topic=1074&download_area_category=1171&download_area_subcategory=1129

LEICA SUMMICRON-SL 1:2/21 ASPH.
LEICA SUMMICRON-SL 1:2/28 ASPH.
LEICA SUMMICRON-SL 1:2/35 ASPH.
LEICA SUMMICRON-SL 1:2/50 ASPH.
LEICA SUMMICRON-SL 1:2/75 ASPH.
LEICA SUMMICRON-SL 1:2/90 ASPH.

ERROR CORRECTION:

�Resolved an issue where the lens transmitted incorrect aperture values to the camera, resulting in overexposed images.

Jul 13, 2025 at 04:27 PM

1bwana1
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p.1 #2 · Leica SL PRIME APO LENS FIRMWARE-UPDATE v4.1

LBJ2 wrote:
LENS FIRMWARE-UPDATE 4.1 **Note this update if for SL Prime APO LENS firmware, not camera firmware update

Installation instructions and Lens firmware download via SD Card here:

https://leica-camera.com/en-int/downloads?field_media_document_language=984&field_media_document_topic=1074&download_area_category=1171&download_area_subcategory=1129

LEICA SUMMICRON-SL 1:2/21 ASPH.
LEICA SUMMICRON-SL 1:2/28 ASPH.
LEICA SUMMICRON-SL 1:2/35 ASPH.
LEICA SUMMICRON-SL 1:2/50 ASPH.
LEICA SUMMICRON-SL 1:2/75 ASPH.
LEICA SUMMICRON-SL 1:2/90 ASPH.

ERROR CORRECTION:

�Resolved an issue where the lens transmitted incorrect aperture values to the camera, resulting in overexposed images.

Thanks for the links.

I updated all 3 of my APO-SL primes 28/50/90 although I can't recall ever encountering the over exposure error. As usual with the Leica SL it was simple and everything went smoothly, easily, and successfully.

Jul 13, 2025 at 05:56 PM

LBJ2
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p.1 #3 · Leica SL PRIME APO LENS FIRMWARE-UPDATE v4.1

1bwana1 wrote:
Thanks for the links.

I updated all 3 of my APO-SL primes 28/50/90 although I can't recall ever encountering the over exposure error. As usual with the Leica SL it was simple and everything went smoothly, easily, and successfully.

I never noticed any such issues with my SL APO lenses either. But updated anyway. In my case SL APOs 35/50/90.

Jul 13, 2025 at 06:18 PM


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