• 35mm 855.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • 35mm 860.4mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Sony Alpha SLT-A99
  • Nikon Df
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Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor: Sony A99 II
A99 vs A99 II
 
General
Model Number: A99 Df
Alternate Model Number(s): SLT-A99V  
Camera Format: SLR SLR
Currently Manufactured: No Yes
Retail Price: $2799.99 $2999.95
Street Price: $1,998.00 $2,768.45
Date Available: 2012-10-15 2013-11-30
Tripod Mount: Yes Yes
Weight: 29.2 oz (828 g)
includes batteries
34.7 oz (983 g)
includes batteries, kit lens
Size: 5.8 x 4.4 x 3.1 in.
(147 x 111 x 78 mm)
5.6 x 4.3 x 2.6 in.
(144 x 110 x 67 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 24.3 16.2
Sensor Format: 35mm 35mm
Sensor size: 855.62mm2 (35.80mm x 23.90mm) 860.4mm2 (36.00mm x 23.90mm)
Approximate Pixel Pitch: 5.97 microns 7.31 microns
Focal Length Multiplier: 1.0x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 89 89
DxO Color Depth Score (bits): 25.0 24.6
DxO Dynamic Range Score (evs): 14.0 13.1
DxO Maximum Effective ISO Score (iso): 1,555 3,279
Image Capture
Image Resolution: 6000 x 4000 (24.0 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
3936 x 2624 (10.3 MP, 3:2),
3936 x 2216 (8.7 MP, 16:9),
2640 x 1760 (4.6 MP, 3:2),
2640 x 1488 (3.9 MP, Other),
1728 x 1152 (2.0 MP, 3:2),
1728 x 976 (1.7 MP, Other),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other)
4928 x 3280 (16.2 MP, 3:2),
3696 x 2456 (9.1 MP, 3:2),
2464 x 1640 (4.0 MP, 3:2),
3200 x 2128 (6.8 MP, 3:2),
2400 x 1592 (3.8 MP, Other),
1600 x 1064 (1.7 MP, 3:2)
Image File Format: JPEG (EXIF 2.3), 14-bit RAW (ARW 2.3), RAW+JPEG JPEG, NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; RAW+JPEG; TIFF (RGB)
Continuous-mode frames/second: 5.9 5.4
Video Capture
Can take movies: Yes No
Movie Resolution: 1920x1080 (60p/​28Mbps/​PS or 60i/​24Mbps/​FX or 60i/​17Mbps/​FH or 24p/​24Mbps/​FX or 24p/​17Mbps/​FH)
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
Movie File Format: AVCHD 2.0 / MP4; Audio :Dolby Digital (AC-3) / MPEG-4 AAC-LC  
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Nikon F
Lens: n/a AF-S NIKKOR 50mm f/1.8G Special Edition
Focal Length (35mm equivalent):   50mm
Focal Length (actual):   50mm
Zoom Ratio:   1.00x
Aperture Range:   f/1.8 - f/16; 7 diaphragm blades (circular)
Integrated ND Filter: No No
Normal Focus Range:   45 cm to Infinity
17.7 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 58.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes No
Digital Zoom Values: 1.4x / 2x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Dual Phase-detection: 19 points (11 points cross type) CCD line sensors, 102 assist points focal plane phase-detection sensors; Wide (auto, 19 points), Zone, Spot, Local selectable 39-point (9 cross type) TTL phase detection with 3D focus tracking via Nikon Multi-CAM 4800FX; Contrast-detect AF in Live View modes
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF type; 1.3cm (0.5-inch) 2,359K-dot XGA OLED, ~100% coverage, 0.71x magnification, 22mm eyepoint at -1 diopter (CIPA standard), -4 to +3 diopter, eye sensor. SLR; eye-level pentaprism, fixed Type B BriteView Clear Matte Mark VIII focusing screen, 100% coverage, 0.7x magnification, 15mm eyepoint, -3 to +1 diopter
Focus Peaking: Yes No
EVF Resolution: 2,359,000 dots n/a
Viewfinder Magnification (35mm equivalent): 0.71x 0.70x
Viewfinder Magnification (nominal/claimed): 0.71x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 1,228,800 dots (307,200 px) 921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: Yes No
Tilt Swivel Screen: Yes No
Selfie Screen: Yes No
Max Playback Zoom: 16.7x  
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 25600 12800
Minimum ISO (native): 100 100
ISO Settings: Auto (100-6400 with selectable limits), 100-25600 in 1/3 EV steps, extendable down to ISO 50; Multi-frame NR up to ISO 51200 Auto, 100 - 12,800, plus down to 50 in Lo-1, up to 204,800 in Hi-4
Auto ISO Mode: Yes Yes
White Balance Settings: Auto WB, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm white/Cool white/Day white/Daylight), Flash, C. Temp 2500 to 9900K, C Filter G7 to M7 (15-step), Custom, AWB micro adjustment Auto (2 types), Incandescent, Fluorescent (7 types), Direct Sunlight, Flash, Cloudy, Shade, Preset manual (up to 4), Color temperature (2500-10000K), all with fine-tuning
Shutter Speed Range: 1/8000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot 2016-pixel 3D Color Matrix Metering III, Center-weighted (75% given to 8, 12, 15 or 20mm circle), Spot (4mm) centered on selected focus area
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Sweep Panorama, Telezoom Continuous Priority AE Built-in HDR mode
Self Timer: 2, 10; 3 or 5 frames after 10s seconds 2/5/10/20s; 1-9 exposures at intervals of 0.5, 1, 2, or 3 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Front curtain sync, slow sync, rear-curtain sync, red-eye reduction, red-eye reduction with slow sync, slow rear-curtain sync, Auto FP High-Speed Sync supported
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/250 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Multi Interface Shoe, PC-Sync terminal ISO 518 Hot Shoe (safety lock provided), PC Sync terminal
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: 14-bit RAW (ARW 2.3), RAW+JPEG NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; RAW+JPEG; TIFF (RGB)
Movie File Format: AVCHD 2.0 / MP4; Audio :Dolby Digital (AC-3) / MPEG-4 AAC-LC  
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: Yes No
Microphone Jack: Yes No
Headphone Jack: Yes No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired Optional cable release, wired, wireless
Connections (extended): Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV H); Wired Remote Terminal, External Stereo Micophone Jack, External Stereo Headphone Jack, DC Input, Vertical Grip connector, Sync Terminal, Multi Interface Shoe, Built-in GPS Type-C Mini HDMI, Accessory Terminal
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.50 0.54
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.56 0.54
Buffer size for RAW shooting in single shot mode (frames): Unlimited Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.58 0.53
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.9 5.4
Buffer size for JPEG shooting in burst mode (frames, max resolution): 17 Unlimited
RAW shooting speed in burst mode (fps): 5.9 5.4
Buffer size for RAW shooting in burst mode (frames): 18 29
RAW+JPEG shooting speed in burst mode (fps): 5.9 5.4
Buffer Size for RAW+JPEG shooting in burst mode (frames): 13 22
Shutter lag (full AF, wide/mid): 0.13 seconds 0.27 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   1.39 seconds
Shutter lag (prefocused, live view - DSLR):   0.233 seconds
Shutter Lag (manual focus): 0.081 seconds 0.079 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.055 seconds 0.054 seconds
Shutter Lag (notes): Full AF lag, Wide-area AF mode = 0.125s Prefocused shutter lag with Electronic First Curtain Off = 0.108s Full AF lag, wide-area mode, OVF = 0.493s Full AF lag, Live View = 1.388s Prefocused, Live View = 0.233s
Startup Time: 0.7 seconds 0.6 seconds
Play -> Record Time: 1.1 seconds 0.3 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 500 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 410 shots 1400 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary EN-EL14a
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H Lithium-ion rechargeable 1 x Proprietary EN-EL14a Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes No
Internal Charging Supported: No No
Software
Included Software: Software CD-ROM (includes Picture Motion Browser, Image Data Converter 4, Remote Camera Control 3) Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.5 +); PMB is Windows only  
Miscellaneous
Notes & Features: 24.3MP full-frame image sensor, SteadyShot INSIDE image stabilization, dual phase-detect AF, 200K shutter, AVCHD 2.0 video, hi-res OLED EVF, articulating 1.3M-dot LCD, 6 fps bursts at full resolution, up to 10 fps Tele-zoom mode, two card slots (SD/MS, SD), real-time Full HD video out via HDMI, built-in GPS. Available in two-tone silver and black, or black.