Sigma ha emesso un comunicato nel quale annuncia che tre dei suoi obiettivi, nello specifico il 20mm F1.4 DG HSM Art, il 35mm F1.4 DG HSM Art e l'85mm F1.4 EX DG HSM, hanno problemi di compatibilità se utilizzati con la EOS 1D X Mark II.
Questa incompatibilità causa un problema di sotto-esposizione delle immagini, il quale si manifesta quando nella funzione "Metering Mode" della fotocamera vengono selezionate le modalità "Evaluating Metering" o "Center-weighted Average Metering".
Sigma ha comunicato che il problema verrà risolto tramite aggiornamenti firmware e le date di uscita saranno comunicate più avanti, di seguito il comunicato ufficiale:
Canon EOS-1D X Mark II Users
Thank you for purchasing and using our products.
We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with
CANON EOS-1DX Mark II, which was released on April 28th.
When certain lenses are attached to this camera, exposure of the image may not be accurate.
We are sorry for the inconvenience, and we will make a further announcement on our website
when specific details are finalized.
In addition, please also refer to the below usage notice related to this announcement.
[Phenomenon]
When the lenses listed below are used and either "Evaluative Metering" or
"Center-weighted Average Metering" is selected in Metering Mode of the camera,
the image could show some underexposure.
[Products concerned]
SIGMA 20mm F1.4 DG HSM Art
SIGMA 35mm F1.4 DG HSM Art
SIGMA 85mm F1.4 EX DG HSM
We are currently working on the firmware update for respective lenses, and the release dates will be announced later.
Usage Notice for customers who are using EOS mount SIGMA lenses on a CANON EOS-1DX Mark II
? MO (Manual Override) function is unavailable with this camera (Full-time Manual function can be offered).
? When using a SIGMA interchangeable lens for EOS, setting the corrections to [Disable] is recommended,
as "Lens Correction" functions of the camera, such as Peripheral illumination correction, Chromatic aberration correction,
Diffraction correction and Distortion correction, are not supported. If those functions are activated,
the performance of lenses may not be accurate. This is not only for EOS-1DX Mark II, but also other camera bodies.
We appreciate your continued support for our company and products.
