Ricoh GXR A12 28mm Review

4.0
December 17, 2010 | Mark Goldstein |

Specifications

Effective pixels Approximately 12.30 million
Image sensor 23.6×15.7mm CMOS sensor (total pixels: 12.90 million pixels)
Lens Focal length 18.3mm (35 mm camera equivalent: 28 mm)
Aperture
(f-number)
f/2.5 – f/22 (ND filter used with apertures for exposure control when f/22 is displayed in auto shooting mode)
Focus range Approx. 20 cm - infinity (from the front of the lens)
Construction 9 elements in 6 groups (2 aspherical lens elements with 2 surfaces)
Filter diameter 40.5mm
Zoom Digital zoom 4.0x (3.6x for movies)
Auto resize zoom Approx. 5.9x (???)
Focus Modes Contrast AF-based multi and spot AF; MF; Snap; infinity (focus lock and AF-assist)
Shutter speed Photographs 180 - 1/3200s (upper and lower limits vary according to shooting and flash mode)
Movies 1/30 – 1/2000 s
Exposure control Metering TTL-CCD metering in multi (256-segment), center-weighted, and spot metering (TTL metering with auto exposure lock)
Mode Program AE, aperture priority AE, manual exposure, shutter priority AE, move target function
Exposure compensation Manual (+4.0 to -4.0 EV in increments 1/3 EV or 1/2 EV), auto bracketing (-2 EV to +2 EV in increments 1/3 EV or 1/2 EV)
ISO sensitivity (Standard Output Sensitivity) AUTO, AUTO-HI, ISO200, ISO400, ISO800, ISO1600, ISO3200
White balance Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent Lamp 1 / Incandescent Lamp 2 / Fluorescent Lamp / Manual Settings / Detail; white balance Bracketing
Flash Range (built-in flash):: Approx. 20 cm – 3.0 m (ISO auto) (from front of lens)
Shooting mode Auto / program shift / aperture priority / shutter priority / manual /scene (movie, portrait, sports, landscape, nightscape, skew correction) / "My Settings"
Continuous mode Number of pictures shot in Continuous (Picture Size: RAW) Noise Reduction on weak or off: 4 pictures
Noise Reduction on strong, or MAX: 3 pictures
Number of pictures shot in M-Cont Plus (1 set) HI (1280 × 856): 30 pictures (24 frames/sec.)
LO (4288 × 2848): 15 pictures (3 frames/sec.)
Picture quality*1 FINE, NORMAL, RAW (DNG) *2
Image size (pixels) Photographs 16:9 4288×2416, 3456×1944
4:3 3776×2832, 3072×2304, 2592×1944, 2048×1536, 1280×960, 640×480
3:2 4288×2848, 3456×2304
1:1 2848×2848, 2304×2304
Movies ?24 frames/second? 1280×720, 640×480, 320×240
File size (approx.) RAW 16:9 NORMAL: 17,800 KB/frame,
FINE: 19,515 KB/frame,
VGA: 15,587 KB/frame
4:3 NORMAL: 18,387 KB/frame,
FINE: 20,157 KB/frame,
VGA: 16,124 KB/frame
3:2 NORMAL: 20,946 KB/frame,
FINE: 22,967 KB/frame,
VGA: 18,337 KB/frame
1:1 NORMAL: 13,991 KB/frame,
FINE: 15,333 KB/frame,
VGA: 12,273 KB/frame
L 16:9 NORMAL: 2,222 KB/frame,
FINE: 3,816 KB/frame
4:3 NORMAL: 2,315 KB/frame,
FINE: 3,960 KB/frame
3:2 NORMAL: 2,615 KB/frame,
FINE: 4,493 KB/frame
1:1 NORMAL: 1,761 KB/frame,
FINE: 3,009 KB/frame
M 16:9 NORMAL: 1,475 KB/frame,
FINE: 2,509 KB/frame
4:3 NORMAL: 1,574 KB/frame,
FINE: 2,662 KB/frame
3:2 NORMAL: 1,744 KB/frame,
FINE: 2,968 KB/frame
1:1 NORMAL: 1,186 KB/frame,
FINE: 2,003 KB/frame
5M 4:3 FINE: 2,287 KB/frame
3M 4:3 FINE: 1,474 KB/frame
1M 4:3 FINE: 812 KB/frame
VGA 4:3 FINE: 197 KB/frame
Battery life Based on CIPA standard DB-90 : approx. 320 shots CIPA*3
Dimensions
(W × H × D)
Camera unit only:68.7 mm × 57.9 mm × 50.4 mm(according to CIPA guidelines)
When mounted on the GXR body:113.9 mm × 70.2 mm × 55.6 mm (according to CIPA guidelines)
Weight (approx.) Camera unit only: Approx. 210g
When mounted on camera body: Approx. 410g (battery and SD memory card included)
Operating temperature 0 °C to 40 °C
Operating humidity 90% or less
Storage temperature: –20 °C to 60 °C

Entry Tags

hd video, hd, 3 inch LCD, 720p, 12 megapixel, manual, RAW, 28mm, APS-C, ricoh, 4fps, gxr, Ricoh GXR A12 Review, a12