Pentax K-7 Review

June 24, 2009 | Mark Goldstein |


Camera Type Digital Single Lens Reflex camera with video mode
Type TTL by image sensor
Field Of View approx. 100%
Display Enlargement (2X, 4X, 6X in case of AF mode, 2X, 4X, 6X, 8X, 10X in case of MF mode)  Grid pattern
Autofocus Mode Contrast detection + Face detection / Contrast detection /  Phase difference detection
Effective Pixels approx. 14.6 megapixels
Total Pixels approx. 15.07 megapixels
Type 23.4mm x 15.6mm CMOS with a primary colour filter

Auto, Manual : 100-3200 (1EV steps or 1/2EV steps or 1/3EV steps) can be expand to ISO6400
*Bulb mode : up to ISO1600

Colour Depth 8 bit (JPEG) or 12 bit (RAW)

Image sensor cleaning function by supersonic vibration

Dust alert also available

Image Size

RAW: 4672 x 3104 (14MP)
JPEG: 4672x3104 (14MP), 3936x2624 (10MP), 3072x2048(6MP), 1728x1152 (2MP)

Movie 1536x1024 (3:2), 1280x720 (16:9),  640x416 (3:2)
Shake Reduction
Type Image sensor shift mechanism
Max 4 stops
File Format
Still RAW (Original/DNG), JPEG (Conforms to Exif 2.21), Conforms to DCF (Design rule of Camera File system) 2.0
Movie Motion JPEG (AVI) 30fps
Quality Level Still:*(Good), **(Better), ***(Best), ****(Excellent)
Movie: *(Good), **(Better), ***(Best)
Storage Media
External SD / SDHC memory card
Mount PENTAX KAF2 bayonet mount
Usable lenses

PENTAX KAF?R, KAF2-, KAF-, and KA-mount  lenses.
* Power zoom function available. K-mount lenses usable with restrictions. S-mount lenses, 67/645 lenses usable with adapter and with restrictions.

Focusing System
Type TTL phase difference detection with AF assist lamp
Focusing system

 11-point wide autofocus system (SAFOX VIII+)

Auto, Select, Centre

Mode AF-single (with focus lock) AF-continuous, Manual
AF assist

Spot beam lamp available

Exposure system
Metering TTL open-aperture 77-segment metering (coupled with lens and AF information)
Metering Area Multi-segment metering
Centre-weighted metering
Spot metering
Exposure System
Metering Range EV 0-22 (at Standard Output Sensitivity 100 with 50mm F1.4 lens)
Exposure system
Exposure Modes

Program AE
Sensitivity-Priority AE
Shutter-Priority AE
Aperture-Priority AE
Shutter and Aperture Priority AE
Metered Manual
X speed

Auto Bracketing 3 or 5 frames within range of ±0.5EV, ±1.0EV, ±1.5EV, ±2.0EV (0.5EV steps) or ±0.3EV, ±0.7EV, ±1.0EV, ±1.3EV, ±1.7EV, ±2.0EV (0.3EV steps)
Exposure System
Compensation ±5 EV
Exposure system
Auto Exposure Lock available
Type Electronically controlled vertical-run focal plane shutter
Speed 1/8000 - 30 sec. and bulb
Type Pentaprism type
Focusing screen Natural-Bright-Matte III
Field of View approx. 100%
Magnification approx. 0.92x (with 50mm F1.4 lens, infinity, -1m-1)
Diopter adjustment approx. -2.5 - +1.5m-1
Mode Dial
Modes Hyper program Sensitivity priority Shutter and aperture priority Shutter priority Aperture priority Hyper manual Green mode Bulb Movie USER X-sync
External LCD Panel
Indication ISO, Battery level, Electronic level, Shots remaining, Drive mode, Shutter speed, Aperture value, Flash indicator, EV compensation
Type Built-in retractable P-TTL pop-up flash
Guide Number approx. 13 (Standard Output Sensitivity 100/m)
Angle of View Coverage 28mm wide-angle (equivalent to 35mm)
Exposure Compensation -2 EV - +1EV (1/2EV steps)
Synchronization Hot shoe, X-sync socket, sync-speed: 1/180 sec., P-TTL, high-speed-sync, wireless-sync with PENTAX dedicated flash
Drive Mode

Single-frame, Continuous (Hi, Lo), Self-timer (12s, 2s), Remote control (0s, 3s), Remote Continuous Shooting, Exposure Bracketing, Exposure Bracketing+Self-timer, Mirror Lock-up Shooting, Mirror Lock-up Shooting+Remote control

Continuous shooting

approx. 5.2 fps, sequence : until approx. 40 frames (JPEG and continuous (Hi))
approx. 15 frames (RAW(PEF))
approx. 14 frames (RAW(DNG))

approx. 3.3 fps, sequence : until the memory card becomes full (JPEG and continuous (Lo))
approx. 17 frames (RAW(PEF)) , approx. 17 frames (RAW(DNG))

White Balance
Modes Auto, Daylight, Shade, Cloudy, Fluorescent Light ( D, N, W, L), Tungsten Light, Flash, CTE, Manual setting , with WB fine adjustment
LCD 3.0", 921,000 dots, TFT colour LCD monitor. Brightness adjustable, Colour adjustable, Wide angle view, AR Coating
View One Image, Two Images, Index (4 or 9 or 16 or 32 or 81 thumb nails), Enlargement (up to 32X, scroll available)
Modes Image Rotation, Folder view, Slideshow, Histogram, Resize, Cropping, Bright/Dark area, Calendar view, Index view
Digital Filter

Toy Camera*, Monochrome, Retro*, Colour, High Contrast*, Soft*, Extract Colour*, Star Burst*, Water Colour, Fish-eye*, Pastel, Slim, Miniature, HDR, Base Tweaking, Custom*

*Available in record mode

World Time
Time 75 cities (28 time zones)
PC USB2.0(Hi-Speed)

AV output, HDMI output

Compatible with NTSC and PAL formats


Rechargeable D-LI90 lithium-ion battery

Optional AC adapter also available


Recordable images: approx. 980 (Normal Recording)*2 , approx. 740 (50% use Flash)*1
Playback time: approx. 440 minutes*2

*1 Recording capacity shows approximate number of shots recorded during CIPA-compliant testing.  Actual performance may vary depending on operating conditions
*2 According to the result of PENTAX in-house testing

Height 96.5mm
Width 130.5mm
Depth 72.5mm
Weight 670g without battery and SD memory card
750g loaded and ready with battery and SD memory card
Storage capacity

Capacity with 1GB memory card

RAW (14MP): 40

(14MP) 73 @ ****, 117 @ ***, 206 @ **, 408 @ *
(10MP) 102 @ ****, 163 @ ***, 289 @ **, 564 @ *
(6MP) 167 @ ****, 267 @ ***, 468 @ **, 902 @ *
(2MP) 516 @ ****, 805 @ ***, 1373 @ **, 2518 @ *

Movie / Sound

Capacity with 1GB memory card

1536x1024: 1:51 @ ***, 2:36 @ **, 3:40 @ *
1280x720: 2:21 @ ***, 3:20 @ **, 4:41 @ *
640x416: 7:59 @ ***, 11:11 @ **, *=15:29 @ *

Max file size is 4GB for movie
Max length for movie is 25 minutes