• APS-C 365.0mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • 4/3 224.9mm2
  • 12.3 megapixels
  •  
  • Detailed specifications
  • Sony Alpha SLT-A35
  • Olympus PEN E-PM1
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A35 E-PM1
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $699.99 $499.99
Street Price: $567.17  
Date Available: 2011-08-31 2011-09-15
Tripod Mount: Yes Yes
Weight: 24.5 oz (694 g)
includes batteries, kit lens
13.5 oz (382 g)
includes batteries, kit lens
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
4.3 x 2.5 x 1.3 in.
(110 x 64 x 34 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS Live MOS
Sensor Manufacturer: Sony Panasonic
Effective Megapixels: 16.2 12.3
Sensor Format: APS-C 4/3
Sensor size: 365.04mm2 (23.40mm x 15.60mm) 224.9mm2 (17.30mm x 13.00mm)
Approximate Pixel Pitch: 4.76 microns 4.29 microns
Focal Length Multiplier: 1.5x 2.0x
Aspect Ratio: 3:2, 16:9 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 74 52
DxO Color Depth Score (bits): 23.3 21.0
DxO Dynamic Range Score (evs): 12.7 10.3
DxO Maximum Effective ISO Score (iso): 763 499
Image Capture
Image Resolution: 4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 MP, 16:9),
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),
7152 x 1080 (7.7 MP, Other),
4912 x 1080 (5.3 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
4032 x 3024 (12.2 MP, 4:3),
3200 x 2400 (7.7 MP, 4:3),
2560 x 1920 (4.9 MP, 4:3),
1920 x 1440 (2.8 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
1280 x 960 (1.2 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
Image File Format: JPEG, RAW (ARW 2.2), RAW+JPEG JPEG (EXIF 2.2), MPO (3D), 12-bit RAW (.ORF)
Continuous-mode frames/second: 5.5 5.3
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i)
1440x1080 (30)
640x480 (30)
1920x1080 (60i (20Mbps/​17Mbps))
1280x720 (60p (17Mbps/​13Mbps))
1280x720 (30p)
640x480 (30p)
Movie File Format: AVCHD, MP4 AVCHD, Motion JPEG
Composite Video Out: No Yes
NTSC/PAL Switchable Video: n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Micro Four Thirds
Lens: Sony 18-55mm f/3.5-5.6 DT SAM Olympus 14-42mm f/3.5-5.6 II R MSC M.Zuiko Digital Zoom Lens
Focal Length (35mm equivalent): 27 - 83mm 28 - 84mm
Focal Length (actual): 18 - 55mm 14 - 42mm
Zoom Ratio: 3.00x 3.00x
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T) f/3.5 (wide) / f/5.6 (tele) - f/22
Integrated ND Filter: No No
Normal Focus Range:   25 cm to Infinity
9.8 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 37.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No Yes
Digital Zoom Values: n/a 2x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. Contrast Detect: High-speed, 35-point with Face Detection and Tracking. Auto from all 35 area, Single area from 35 area, Group Target area (9 area) from 35 area, Up to 8 Faces Detected
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD No / LCD
Viewfinder Type: EVF type; 1.1cm (0.43") 1.15M-dot LCD (380K-dot time-multiplexed RGB), 100% coverage, 1.1x mag., 19mm eyepoint, -4 to +4 diopter Optional EVF mounted in flash hotshoe
Focus Peaking: No No
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent): 0.73x  
Viewfinder Magnification (nominal/claimed): 1.10x  
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots 460,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 11.8x 14.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800  
Minimum ISO (native): 100  
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800; (Multi-frame NR mode up to ISO 25600) Auto (customizable range), 200 - 12800 (1/3, 1 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation) Auto, Lamp, Fluorescent, Daylight, Flash, Cloudy, Shade, Underwater, Custom WB, One-touch WB
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 60 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 49-zone Multi-segment, Center-weighted, Spot 324-zone Digital ESP, Center Weighted Average, Spot (~1%, with Highlight/Shadow modes)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Sports Action, Macro, Landscape, Sunset, Night view, Hand-held Twilight (6 shot layering), Night Portrait, Picture Effect, Sweep Panorama (2D/3D) Portrait, e-Portrait, Landscape, Landscape + Portrait, Macro, Sport, Night Scene, Night + Portrait, Children, High Key, Low Key, DIS mode, Nature Macro, Candle, Sunset, Document, Panorama, Fireworks, Beach & Snow, Fisheye Conv, Wide Conv, Macro Conv, 3D, Underwater wide, Underwater macro; Art Filters (Pop Art, Soft Focus, Grainy Film, Pin Hole, Diorama, Dramatic Tone)
Self Timer: 2, 10; 3 or 5 after 10 sec seconds 2 or 12 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Auto, Red-eye reduction, Red-eye reduction slow sync., Slow sync at 1st curtain, Slow sync at 2nd curtain, Fill-in, Manual (Full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64), Off. Wireless flash control supported.
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 7.0 m / 23.0 ft.
Flash Range Description: Lens dependent Bundled external flash has GN of 7m (ISO 100) or 10m (ISO 200)
Max Flash Sync: 1/160 1/160
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot shoe Hot-Shoe
Built-In Wireless Flash Control: Full TTL exposure  
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (ARW 2.2), RAW+JPEG 12-bit RAW (.ORF)
Movie File Format: AVCHD, MP4 AVCHD, Motion JPEG
Included Memory:    
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC:
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes No
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: Optional Wireless (RMT-DSLR1) or Wired (RM-S1AM/RM-L1AM) Optional RM-UC1 wired remote
Connections (extended): Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack Accessory Port 2, Multi Connector (USB/AV/Remote), Mini HDMI (Type C)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.53 0.59
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.54 0.57
Buffer size for RAW shooting in single shot mode (frames): 8 15
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.5 5.3
Buffer size for JPEG shooting in burst mode (frames, max resolution): 12 9
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid): 0.22 seconds 0.25 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.217 seconds 0.112 seconds
Shutter lag (full AF, with flash): 0.48 seconds  
Shutter Lag (prefocused): 0.102 seconds 0.075 seconds
Shutter Lag (notes): Wide-area full AF lag = 0.214s Full Autofocus Lag, Multi-area AF mode = 0.289s
Startup Time: 0.9 seconds 1.8 seconds
Play -> Record Time: 0.4 seconds 0.5 seconds
Flash cycle time, full power: 3.3 seconds 4.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   330 shots
Battery Life, Still (CIPA Rating OVF/EVF): 420 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FW50 Proprietary BLS-1 or BLS-5
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable Proprietary BLS-1 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) OLYMPUS Viewer 2/[ib] CD-ROM
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +)  
Miscellaneous
Notes & Features: Super SteadyShot Image Stabilization, 1080i HD Video, Auto+, Picture Effects, Multi-frame NR, Hand-held Twilight, Auto HDR, D-Range Optimizer, 2D/3D Sweep Panorama, Smile Shutter, DOF Preview, 5.5fps Full-res Burst Mode (7fps in Cropped "Telezoom" 8MP Mode). Sensor-shift Image Stabilization, TruePic VI Image Processor, "FAST" AF System, Full HD movies, 6 Art Filters, Bundled External Flash. Available in Purple, Silver, Pink, White, Black and Brown.