Metabones Pentax K to Qmount Speed Booster Devil Q666 0.50x Adapter
“The Devil’s Speed Booster”, exclusively for Pentax Q series cameras. With its 0.5x magnification and world-record f/0.666 maximum speed it is crazy wicked fast. 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. Attach an f/1.2 lens and stop down a little to see how Stanley Kubrick made do with f/0.7 for filming those famous candle-lit scenes in “Barry Lyndon”. Or open up all the way to f/0.666 and probe the darkness in a way that no photographer has ever been able to do until now.
With an advanced 6-element optical design, the Q666 packs lots of optical horsepower in a small package. Sharpness is excellent even at f/0.666, and is downright superb if you stop down to f/1.0. Distortion is very low, with a maximum value of, naturally, 0.666%. And thanks to the back-illuminated sensor used in Pentax Q cameras, the full f/0.666 maximum aperture can be utilized with minimal pixel vignetting effects commonly seen in other cameras used with high-speed lenses.
|Crop Factor||Pentax Q, Q10: 2.8x
Pentax Q7, Q-S1: 2.3x
|Maximum Output Aperture||f/0.666 (with f/1.2 lens attached)|
|Rectilinear Distortion||< 0.666%|
|Length Reduction||10.1 mm|
|Supported Cameras||Pentax Q, Q10, Q7, Q-S1|
|Lens Mount||Pentax K|
|Image Format||7.44 mm x 5.58 mm|