• 1 inch 116.2mm2
  • 10.1 megapixels
  • ISO 100 - 3200
  • APS-C 369.7mm2
  • 16.3 megapixels
  • ISO 100 - 12,800

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Differences

Nikon J1 advantages over Pentax K-01

  • Less expensive
    $650 vs $900 (MSRP)
    Save money for lenses or accessories
  • Fast startup
    ~1.40 vs 2.4 sec
    Faster startup lets you catch the moment
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • More telephoto lens reach
    81 mm vs 61 mm
    Capture objects farther away with the kit lens
  • Thinner
    29 mm vs 58 mm
    Thinner
  • Lighter weight
    396g vs 611g
    Lighter weight
  • Less shutter lag
    0.09 vs 0.80 sec
    Focus and take a photo quickly (wide angle)
  • Wider angle kit lens
    27 mm vs 61 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    57.9 fps vs 5.9 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light

Pentax K-01 advantages over Nikon J1

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.81 vs 3.41 microns
    Better low-light and dynamic range (all else equal)
  • Better color depth
    23.7 vs 21.5 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    1,135 vs 372 iso
    Take photos in low light with less noise
  • More dynamic range
    12.9 vs 11.0 evs
    Retain detail in highlight and shadows
  • Longer stills battery life
    More info 500 vs 230 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/180 vs 1/60 sec
    Reduce the effect of ambient light in flash shots
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    921k vs 460k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    16.3 vs 10.1 megapixels
    Higher resolution photos
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Nikon J1

Your purchases support this site

Buy the Pentax K-01

Review Excerpt

  • Very small body, with solid feel; Fast AF; No-nonsense interface. Excellent video capture, Good picture quality.

  • Body could be smaller for sensor size; High ISO isn't as good as other compact system cameras; Battery life below average; Weak flash; Confusing controls.

  • Very good image quality and excellent high ISO performance. Premium build quality. In-body image stabilization. Lots of creative features. Full HD movie capture with manual exposure control.

  • Barely any smaller than a standard SLR, but lacks viewfinder and phase-detect autofocus. Contrast-detect AF is slow and unreliable. Body design is clumsy and uncomfortable. Very slow raw burst shooting.

The Competition

Compared to Fujifilm X-Pro1

Nikon J1
Fujifilm X-Pro1
  • $500
  • 1 inch
  • Less expensive
  • On-sensor phase detect
  • $499
  • APS-C
  • Lens selection
  • Focus peaking
Pentax K-01
Fujifilm X-Pro1
  • $359
  • APS-C
  • Lens selection
  • Less expensive
  • $499
  • APS-C
  • Eye-level viewfinder
  • In-camera panoramas

Compared to Samsung NX20

Nikon J1
Samsung NX20
  • $500
  • 1 inch
  • Fast startup
  • On-sensor phase detect
  • $400
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Pentax K-01
Samsung NX20
  • $359
  • APS-C
  • Lens selection
  • Focus peaking
  • $400
  • APS-C
  • Eye-level viewfinder
  • Tiltable Screen

Compared to Nikon J2

Nikon J1
Nikon J2
  • $500
  • 1 inch
  • $550
  • 1 inch
  • Less expensive
  • More dots on screen
Pentax K-01
Nikon J2
  • $359
  • APS-C
  • Lens selection
  • Focus peaking
  • $550
  • 1 inch
  • Less expensive
  • On-sensor phase detect

Compared to Nikon J3

Nikon J1
Nikon J3
  • $500
  • 1 inch
  • Bigger pixels
  • $617
  • 1 inch
  • Higher effective ISO
  • More dots on screen
Pentax K-01
Nikon J3
  • $359
  • APS-C
  • Lens selection
  • Focus peaking
  • $617
  • 1 inch
  • Less expensive
  • On-sensor phase detect

Compared to Nikon S1

Nikon J1
Nikon S1
  • $500
  • 1 inch
  • Wider angle kit lens
  • $199
  • 1 inch
  • Less expensive
Pentax K-01
Nikon S1
  • $359
  • APS-C
  • Lens selection
  • Focus peaking
  • $199
  • 1 inch
  • Less expensive
  • On-sensor phase detect
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