This Booster Will Give You f/0.666
Since its inception, Metabones has been creating lens adaptors and speed boosters that boosts effective apertures of lenses. Now they've created a badass speed booster dubbed as the “The Devil’s Speed Booster”.
Created specially for the Pentax Q, the new speed booster allows you to mount any Nikon F or G mount lenses onto your Pentax Q camera (excluding the Nikon 2.1cm f/4 and 20mm f/2.8 AI-S lenses). So if you have an f/1.2 lens, you'll end up having an aperture of f/0.666 aperture. Now you achieve the same effect as those of Stanley Kubrick's film Barry Lyndon where he used an f/0.7 lens.
Petapixel reports that it will give a magnification of 0.5x and produce a crop factor of 2.8x for Q and Q10 cameras, or a crop of 2.3x for Q7 and Q-S1 cameras. Distortion is extremely low (a maximum of 0.666%) and vignetting is also minimal. It’ll reduce the focal length of your lens by 10.1mm.Combined with the back-illuminated sensor of the Pentax Q, that is one good low-light performing setup.
Although the mount does not support electronic control, it does provide a manual aperture control with a clickless aperture ring, designed with an 8-stop range that indicates the number of f-stops.
So make a deal with the devil today and turn your Pentax Q with its back-illuminated sensor into a monster low-light machine unlike anything ever seen in photography.
The Metabones Speed Booster Q666 0.50x will soon be available at CameraHaus.