• 1/1.7 inch 43.3mm2
  • 12.0 megapixels
  • 37.00mm - 111.00mm (35mm eq.)
  • 1/1.7 inch 43.3mm2
  • 12.2 megapixels
  • 28.00mm - 200.00mm (35mm eq.)
  • Detailed specifications
  • Pentax Optio A40
  • Nikon Coolpix P7800
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Nikon P7700
P7700 vs P7800
Successor:    
General
Model Number: A40 P7800
Alternate Model Number(s):    
Camera Format: Ultra Compact Mid-Sized
Currently Manufactured: No No
Retail Price: $299.95 $549.95
Street Price:   $499.95
Date Available: 2008-02-15 2013-09-30
Tripod Mount: Yes Yes
Weight: 5.3 oz (150 g)
includes batteries
14.1 oz (399 g)
includes batteries
Size: 3.6 x 2.2 x 0.9 in.
(91 x 56 x 23 mm)
4.7 x 3.1 x 2.0 in.
(119 x 78 x 50 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:    
Effective Megapixels: 12.0 12.2
Sensor Format: 1/1.7 inch 1/1.7 inch
Sensor size: 43.32mm2 (7.6mm x 5.7mm) 43.32mm2 (7.6mm x 5.7mm)
Approximate Pixel Pitch: 1.90 microns 1.90 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score:   54
DxO Color Depth Score (bits):   21.2
DxO Dynamic Range Score (evs):   11.7
DxO Maximum Effective ISO Score (iso):   200
Image Capture
Image Resolution: 4000 x 3000 (12.0 MP, 4:3),
3648 x 2736 (10.0 MP, 4:3),
3072 x 2304 (7.1 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
4000 x 3000 (12.0 MP, 4:3),
3984 x 2656 (10.6 MP, 3:2),
3968 x 2232 (8.9 MP, 16:9),
3000 x 3000 (9.0 MP, 1:1),
3264 x 2448 (8.0 MP, 4:3),
2272 x 1704 (3.9 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF 2.3), MPO, 12-bit RAW (.NRW), RAW+JPEG
Continuous-mode frames/second: n/a 8.5
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30)
320x240 (30)
1920x1080 (30p/​15p)
1280x720 (30p/​60p)
640x480 (30p/​120p)
Movie File Format: AVI (DivX MPEG-4) MOV (Video: MPEG-4 AVC/H.264, Audio: AAC stereo)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a n/a
Lens: SMC Pentax Zoom (7 elements in 5 groups, 3 aspherical) Zoom-Nikkor ED VR; 13 elements in 10 groups, inc. 2 ED elements
Focal Length (35mm equivalent): 37 - 111mm 28 - 200mm
Focal Length (actual): 7.9 - 23.7mm 6 - 42.8mm
Zoom Ratio: 3.00x 7.10x
Aperture Range: f/2.8 (wide) - f/5.4 (tele) - ??? f/2.0 (wide) / f/4.0 (tele) - f/8.0; 7-blade iris diaphragm
Integrated ND Filter: No Yes
Normal Focus Range: 35 cm to Infinity
13.8 in to Infinity
50 cm to Infinity
19.7 in to Infinity
Macro Focus Range: 6 - 40 cm
2.4 - 15.7 in
2 cm to Infinity
0.8 in to Infinity
Filter Thread: n/a 40.5mm
Thread Type: n/a On lens
Optical Image Stabilization: No Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 6x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 5 point Contrast Detect AF; spot, tracking, and face recognition Contrast Detect: Auto (9-area automatic selection), Center, Face priority, Manual with 99 focus areas, Subject tracking
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: LCD EVF / LCD
Viewfinder Type:   921K-dot eye-level electronic viewfinder
Focus Peaking: No No
EVF Resolution: n/a 921,600 dots (307,200 pixels)
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 3.0
Rear Display Resolution: 232,000 dots 921,600 dots (230,400 px)
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 8.0x 10.0x
Top Deck Display: No
Exposure
Maximum ISO (native):   3200
Minimum ISO (native):   80
ISO Settings: Auto, 50, 100, 200, 400, 800, 1600, 3200 (auto up to 3200 in Digital SR mode) Auto, Auto (80-200), Auto (80-400), Auto (80-800), 80, 100, 200, 400, 800, 1600; 3200 and Hi 1=6400 (available when using P, S, A or M mode)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Tungsten, Fluorescent, Manual Auto 1 (Normal), Auto 2 (Warm), Cloudy, Daylight, Fluorescent (1/2/3), Incandescent, Cloudy, Flash, Manual (3 presets), Fine Tune By Kelvin Color Temperature Setting
Shutter Speed Range: 1/2000 - 4 sec 1/4000 - 60 sec
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: TTL metering: Multi-segment, Center-weighted, Spot 224-segment Matrix, Center-Weighted, Spot; metering can be focus-coupled
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Natural Skin Tone, Half-length Portrait (3MP), Night Scene, Landscape, Flower, Portrait, Kids, Digital SR (5MP), Surf & Snow, Sport, Pet, Text, Food, Frame Composite (3MP), Dynamic Range Adjustment Portrait, Landscape, Sports, Night portrait, Party/indoor, Beach, Snow, Sunset, Dusk/dawn, Night landscape (including hand-held option), Close-up, Food, Museum, Fireworks show, Black and white copy, Backlighting, Easy Panorama, Pet portrait; plus Special effects (Creative monochrome, Painting, Zoom exposure, Defocus during exposure, Cross process, Soft, Nostalgic sepia, High key, Low key, Selective color), HDR, Active D-Lighting
Self Timer: 2 or 10 seconds 10 or 2 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: On, Off, Auto, Redeye, Soft Flash Auto, Auto with red-eye reduction, Fill flash, Manual (1/64 - full power), Slow sync, Rear curtain sync, Commander
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: Wide: 0.20 - 23 ft (0.06 – 7.1 m); Tele: Approx. 1.15 – 11 ft (0.35 – 3.5 m) Auto ISO: [W]: 0.5 to 10m (1ft. 8 in. to 32 ft.); [T]: 0.5 to 5.5m (1ft. 8 in. to 18ft.)
Max Flash Sync:   1/4000
Flash Exposure Compensation:   +/- 2.0 EV in 0.3EV steps
External Flash Connection: n/a Hot Shoe (iTTL)
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   12-bit RAW (.NRW), RAW+JPEG
Movie File Format: AVI (DivX MPEG-4) MOV (Video: MPEG-4 AVC/H.264, Audio: AAC stereo)
Included Memory: 21.0 MB 86.0 MB
Included Memory Type: Internal Internal
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No 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: IR, optional Optional IR, RF or wired remote
Connections (extended): DC input Mini HDMI, 3.5mm Stereo Microphone Jack, Accessory Port
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   1.59
Cycle time for RAW shooting in single shot mode (seconds per frame):   3.31
Buffer size for RAW shooting in single shot mode (frames):   Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   3.60
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   8.5
Buffer size for JPEG shooting in burst mode (frames, max resolution):   6
RAW shooting speed in burst mode (fps):   8.4
Buffer size for RAW shooting in burst mode (frames):   6
RAW+JPEG shooting speed in burst mode (fps):   8.5
Buffer Size for RAW+JPEG shooting in burst mode (frames):   6
Shutter lag (full AF, wide/mid):   0.42 seconds
Shutter lag (full AF, tele):   0.53 seconds
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.340 seconds
Shutter lag (full AF, with flash):   0.49 seconds
Shutter Lag (prefocused):   0.140 seconds
Shutter Lag (notes):    
Startup Time:   1.8 seconds
Play -> Record Time:   2.1 seconds
Flash cycle time, full power:   3.4 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 240 shots 350 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI68 Proprietary EN-EL14
Usable Battery Types: Lithium Ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI68 Lithium Ion rechargeable 1 x Proprietary EN-EL14 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Software (S-SW69) CD-ROM Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: High-res 921K-dot EVF, articulating 921K-dot RGBW LCD, VR optical image stabilization, 1080p Full HD video capture, 8 fps full-resolution burst mode, compatible with WU-1A Wi-Fi adapter.