| key specs | 
| Camera Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 20.3 MP | 36.3 MP | 
| Sensor Type | MOS | CMOS | 
| Display Size | 3 inch | 3.2 inch | 
| Battery Type | Lithium ion | AA Alkaline Battery | 
| Touchscreen | Yes | No | 
| general | 
| Brand | Olympus | Nikon | 
| Model | Pen F 20.3MP DSLR Camera | D810 36.3MP DSLR Camera | 
| Model Name | Pen F | D810 | 
| Model Number | PEN F | D810Body only | 
| Series | Pen | - | 
| Color | Black | Black | 
| Minimum Illumination | Available | - | 
| Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 20.3 MP | 36.3 MP | 
| Dimensions(WxHxD) | 124.8 x 72.1 x 37.3 mm | 158.5 x 160 x 92 mm | 
| Weight | 427 GM | 575 GM | 
| Face Detection | Yes | - | 
| Temperature | 0 to 40 | 0 to 40 | 
| Accessory Shoe | Hot Shoe | - | 
| SLR Variant | - | Body Only | 
| Tripod Socket | - | Yes | 
| Ports | - | Type C HDMI Connector | 
| sensor features | 
| Sensor Type | MOS | CMOS | 
| Sensor Size | 4/3 inch | 35.9 x 23.9 mm | 
| Sensor Technology | Live MOS Sensor | - | 
| viewfinder features | 
| View Finder | Yes | - | 
| View Finder Type | Eye-level electronic OLED viewfinder, approx. 2.36M-dot resolution | - | 
| Viewfinder Coverage | 100% | - | 
| Viewfinder Magnification | Approx. 1.08x*1 - 1.23x*2 -1m-1, 50mm lens, Infinity | - | 
| Viewpoint Dioptric Adjustment | -4 ~ +2m-1 | - | 
| Viewfinder Eye Point | 20 mm | - | 
| focus features | 
| Focus Mode | Single AF S-AF / Continuous AF C-AF / Manual Focus MF / S-AF + MF / AF tracking C-AF + TR | - | 
| Focus Points | 81-area multiple AF Contrast detection AF, 37- area multiple AF Phase-difference detection AF  All target, Group target area 3x3-area,  Single targetStandard Target Size/Small Target  Size | - | 
| White Balancing | Auto WB, 7 Preset WBs, 4 Capture WBs, Custom WBKelvin setting | - | 
| exposure features | 
| Exposure Mode | i AutoLive Guide can be performed , P Program AE Program shift can be performed, A Aperture priority AE, S Shutter priority AE, M Manual Live Bulb, Live Time and Live Composite are available, Custom1~4, Photo Story*1,Scene select AE*2 *1 Photo Story can be set to C3 | - | 
| AE Lock/Exposure Lock | Yes | - | 
| Exposure Compensation | When using exposure compensation dial | - | 
| Manual Exposure | Yes | - | 
| shutter features | 
| Shutter Type | Computerized focal-plane, high-speed, mechanical shutter | - | 
| Shutter Speed | 1/8000 - 60 sec. 1/3, 1/2, or 1EV steps selectable 1/16000  60 sec. Silent Electronic Shutter Electronic first curtain shutter Anti-shock mode 1/320  60 sec. Bulb/Time default setting 8min. 1/2/4/8/15/20/25/30 min. selectable | 1/8000 - 30 sec | 
| Self-timer | Yes | No | 
| Continuous Shots | [Sequential shooting H mode]approx 10 fps  *IS OFF *Focus and exposure are fixed at the values for the first shot. [Sequential shooting L mode]approx 5 fps  *When using the M.ZUIKO DIGITAL ED 12-50mm f/3.5-6.3 EZ  [Sequential shooting H+ silent shutter mode] approx 20 fps  *Shutter speed is limited  1/16000s - 1/25s | - | 
| flash features | 
| Built-in Flash | Yes | - | 
| External Flash | Yes | - | 
| Flash Modes | Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.1st curtain, Slow sync.1st curtain, Slow sync.2nd curtain, Manual 1/1 FULL 1/64 | - | 
| Flash Compensation | Up to 3 EV in 0.3, 0.5, 1 EV steps selectable | - | 
| image features | 
| Image Format | RAW 12-bit lossless compression, JPEG, RAW+JPEG, MPO3D still | JPEG, NEF RAW, NEF RAW JPEG, EXIF 2.3, DCF 2.0, DPOF | 
| Gross Pixel | 21.8 MP | - | 
| Image Sizing | 5184Hx3888 | - | 
| HDR Support | HDR1,HDR2 painting like | - | 
| display features | 
| Display Size | 3 inch | 3.2 inch | 
| Display Resolution | Approx 1037k dots | - | 
| Touch Screen | Yes | No | 
| LCD Display | Vari-Angle LCD | - | 
| LCD Display Image Resolution | Approx 1037k dots | - | 
| connectivity features | 
| HDMI | Yes | - | 
| USB | Yes | - | 
| Wifi | Yes | No | 
| Wireless Connectivity | Built-in IEEE 802.11b/g/n | - | 
| storage and power features | 
| Card Type | SD Memory Card SDHC, SDXC, UHS-I, II compatible, Eye-Fi Card compatible | - | 
| Battery Type | Lithium ion | AA Alkaline Battery | 
| audio and video features | 
| Microphone | Stereo | - | 
| Speaker | Mono | - | 
| Audio Features | Wave Format Stereo linear PCM/16-bit, Sampling frequency 48kHz | - | 
| Video Resolution | 1920x1080 | 1920 x 1080 | 
| Video Quality | Full HD | - | 
| Video Format | MOVMPEG-4AVC/H.264 , AVIMotion JPEG | - | 
| lens features | 
| Lens Mount | - | Nikon F mount | 
| Optical Zoom | - | 1x | 
| Dust Reduction | - | Yes |