Pentax Q

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Pentax Q
Pentax Q 01n2000.jpg
Pentax Q with zoom lens
Maker Pentax
Type Mirrorless
Image sensor type BSI-CMOS sensor
Image sensor size 1/2.3″ (1/1.7″ for Q7 and Q-S1), 12.4 megapixel
Maximum resolution 4:3 native: 4000 x 3000, 3456x2592, 2688x2016, 1920x1440
Recording medium SD, SDHC, SDXC
Lens mount Pentax Q-mount, bayonet, stainless steel mount
Focus autofocus with manual override
Flash built-in: P-TTL, popup extension, GN 7m, 1/2000 s sync (leaf shutter), 1/13 s (electronic); external P-TTL, 1/250 s sync
Frame rate 5-frame burst; 1.5fps sustained
Shutter electronic, leaf shutter in lens where applicable
Shutter speeds 30 s to 1/2000 s mechanical; 2 s to 1/8000 s electronic
ASA/ISO range 125-6400
Viewfinder optional optical suitable for 8.5mm f1.9 lens
Custom WB auto, CTE, manual set; presets: daylight, shade, cloudy, fluorescent (D, N, W, L), tungsten, flash; fine adjustment available in all modes
Video/movie recording 1920x1080 30fps, 1280x720 30fps, 640x480 30fps
Rear LCD monitor 360x320x4 luminance-R-G-B HVGA; color LCD
Battery proprietary, rechargeable li-ion battery, Pentax D-LI68
Data Port(s) USB 2.0
Body composition or special features mechanical sensor-shift image stabilization (photography); electronic image stabilization (video)
Dimensions 98 x 57 x 31 mm
(3.86 x 2.24 x 1.22")
Weight 180 g (0.40 lb / 6.35 oz)
Made in Philippines

The Pentax Q is a mirrorless interchangeable-lens camera introduced by Pentax on June 23, 2011.


Introduced as "The world's smallest interchangeable lens system camera…"[1] The Pentax Q system is composed of 4 bodies (Q, Q10, Q-7, Q-S1) and eight lenses: Three zooms (mid-range, wide and telephoto), one high quality prime (8mm f1.9), and 4 "specialty" lenses (fish-eye, "toy" wide and tele, as well as a single element "lens-cap"). The zooms and HQ prime have leaf shutters (with built-in neutral density filters) which sync with flash up to 1/2000 of a second. The other lenses (and all adapted lenses) use the camera's electronic shutter.

The camera's small sensor size (1/2.3") means that the Q has a crop factor of 5.6× and a short flange focal distance (FFD). With the 5.6× crop factor, a 100 mm macro lens (for example) becomes a (35 mm equivalent field of view) 560 mm extreme telephoto or an extreme close-up lens. An additional implication of the 5.6x crop factor and associated optics is that depth of field (DOF) is increased proportionally for a given aperture setting (in comparison to the 35mm equivalent depth of field at the corresponding aperture). Later models of the Q (Q7 and Q-S1) have a larger sensor size (1/1.7") which has a crop factor of 4.6×. In some applications the Pentax Q has an advantage over more conventional mirrorless sensor formats, which offsets other limitations arising from the smaller sensor size. Moreover, the Pentax Q has a wide range of digital effects and controls including High Dynamic Range (HDR), multiple scene modes, and a bokeh function which, when activated, can enable a shallow focus effect.

The short FFD of the Pentax Q allows the use of third-party adapters to mount lenses from many manufacturers on the Pentax Q body, including Olympus OM, Canon FD, Minolta, M42 screw mount, C-Mount, D-Mount, Pentax K, Pentax Auto 110, and Pentax 6×7.[2]

The camera is equipped with sensor-shift image stabilization technology to improve image quality at slow shutter speeds or when using telephoto lenses. It has a "focus peaking" function as well. Sensor shift and focus peaking functions also work with adapted lenses.