FujiRumors, on the other hand, reached out to Viltrox and was told that firmware to turn the F1.8 lens into an F1.6 lens had not been released. Sony Addict reported that the firmware was released officially in China. With a simple firmware update, you can get an extra one-third of a stop of light gathering capability.Īs PetaPixel notes, there are conflicting reports as to the origin of the firmware. This update allows the lens to open its aperture wider, changing the maximum aperture from F1.8 to F1.6. Photographer Stefan Malloch has published a video tutorial, seen below, which shows how to use the USB port on the lens to update the lens. It now appears that wide open can be made even wider with a firmware update allowing the lens to become an F1.6 prime. Owners have remarked that the lens delivers sharp image quality even when shot wide open.
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