• APS-C 366.6mm2
  • 24.1 megapixels
  • ISO 100 - 6400
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 102,400

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Differences

Nikon D7100 advantages over Pentax K-70

  • Fast startup
    ~0.30 vs 1.0 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 950 vs 410 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More cross-type AF points
    15 vs 9
    Cross-type AF points improve autofocus performance
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • More AF points
    51 vs 11
    More AF points improve autofocus
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video

Pentax K-70 advantages over Nikon D7100

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • More telephoto lens reach
    203 mm vs 158 mm
    Capture objects farther away with the kit lens
  • Newer
    8 years vs 12 years old
    Newer cameras often support more advanced features
  • Less shutter lag
    0.13 vs 0.25 sec
    Focus and take a photo quickly (wide angle)
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré
  • Bigger JPEG buffer
    47 vs 12 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    6.1 fps vs 5.3 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    11 vs 5 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

Buy the Nikon D7100

Your purchases support this site

Buy the Pentax K-70

Review Excerpt

  • Solid, ergonomic body design; Stunning, highly detailed photos, thanks to 24.1MP sensor upgrade and removal of optical low-pass filter; Cool 1.3x crop mode extends reach to nearly 2x the full-frame equivalent; Records Full 1080p HD video at up to 30fps with full-time AF; Many pro-level features packed into a consumer-friendly body at reasonable price.

  • Shallow buffer that hampers continuous burst shooting; AF slightly slower than average for its class; No real-time aperture control while in Movie mode (among other quirks); More noticeable moire patterns and aliasing artifacts (but only found when shooting fabrics with strong, distinct patterns).

  • Huge bang for the buck; Great image quality; Excellent high ISO performance; Fast autofocus; Good burst frame rate with deep buffer; Pentaprism viewfinder; Twin control dials; Articulated LCD; Comprehensive weather-sealing and freeze-proofing; Unbelievable wealth of rare to unique (yet very useful) features

  • Wi-Fi wireless communication is slow, clumsy and unintuitive; Video autofocus is prone to hunting or racking focus; Slow buffer clearing; Rather heavy for an entry-level DSLR; Autofocus and metering systems are a bit dated; Below average battery life

The Competition

Compared to Canon 70D

Nikon D7100
Canon 70D
  • $690
  • APS-C
  • Less expensive
  • Fast startup
  • $999
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax K-70
Canon 70D
  • $597
  • APS-C
  • Less expensive
  • Focus peaking
  • $999
  • APS-C
  • Touchscreen
  • Fast startup

Compared to Pentax K-3

Nikon D7100
Pentax K-3
  • $690
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Pentax K-70
Pentax K-3
  • $597
  • APS-C
  • Tilt-swivel screen
  • High resolution composite
  • $699
  • APS-C
  • Longer stills battery life
  • Top deck display

Compared to Nikon D5300

Nikon D7100
Nikon D5300
  • $690
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Pentax K-70
Nikon D5300
  • $597
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Fast startup
  • Built-in GPS

Compared to Canon T6s

Nikon D7100
Canon T6s
  • $690
  • APS-C
  • Larger sensor
  • Fast startup
  • $619
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax K-70
Canon T6s
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor
  • $619
  • APS-C
  • Touchscreen
  • NFC

Compared to Canon 77D

Nikon D7100
Canon 77D
  • $690
  • APS-C
  • Larger sensor
  • Fast startup
  • $550
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax K-70
Canon 77D
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor
  • $550
  • APS-C
  • Touchscreen
  • Fast startup
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