• APS-C 369.7mm2
  • 16.3 megapixels
  • ISO 100 - 12,800
  • 1 inch 116.2mm2
  • 20.1 megapixels
  • 25.00mm - 250.00mm (35mm eq.)

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Differences

Pentax K-5 IIs advantages over Panasonic ZS100

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.81 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.60 vs 2.3 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    1,208 vs 559 iso
    Take photos in low light with less noise
  • More dynamic range
    14.1 vs 12.5 evs
    Retain detail in highlight and shadows
  • Longer stills battery life
    More info 740 vs 300 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More viewfinder magnification
    0.61x vs 0.46x
    Get a bigger view of the scene through the eye-level viewfinder
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Bigger RAW buffer
    22 vs 14 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Panasonic ZS100 advantages over Pentax K-5 IIs

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Thinner
    44 mm vs 73 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    3 years vs 6 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    309g vs 740g
    Lighter weight
  • Less shutter lag
    0.10 vs 0.23 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    20.1 vs 16.3 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    9.9 fps vs 6.7 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    Unlimited vs 28 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    9.5 fps vs 6.7 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • 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
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Your purchases support this site

Buy the Panasonic ZS100

Review Excerpt

  • Noticeably better sharpness than standard K-5 II; Compact yet control-rich body packs in the features; Updated autofocus system focuses in near-darkness; Fully weather-sealed; Very good dynamic range; In-body image stabilization; Dual-axis level with horizon correction.

  • Prone to moire, aliasing, and false color artifacts; Can seem intimidating at first; Fewer autofocus points than competitors; Doesn't take advantage of high-speed UHS-I flash cards; Movie feature set is very dated and file sizes huge.

  • Compact camera body; versatile 10x zoom lens; relatively good high ISO performance; fast autofocus; many good 4K video and photo features.

  • Soft lens at longer focal lengths; no tilting display; small electronic viewfinder; slippery finish on the camera body.

The Competition

Compared to Sony A35

Pentax K-5 IIs
Sony A35
  • $623
  • APS-C
  • Lens selection
  • Fast startup
  • $567
  • APS-C
  • In-camera panoramas
  • More viewfinder magnification
Panasonic ZS100
Sony A35
  • $498
  • 1 inch
  • Focus peaking
  • Shoot 4K video
  • $567
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony A57

Pentax K-5 IIs
Sony A57
  • $623
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $800
  • APS-C
  • Focus peaking
  • In-camera panoramas
Panasonic ZS100
Sony A57
  • $498
  • 1 inch
  • Shoot 4K video
  • Touchscreen
  • $800
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Pentax K-500

Pentax K-5 IIs
Pentax K-500
  • $623
  • APS-C
  • Less expensive
  • Higher effective ISO
  • $597
  • APS-C
  • Focus peaking
  • Shoots 24p video
Panasonic ZS100
Pentax K-500
  • $498
  • 1 inch
  • Less expensive
  • Shoot 4K video
  • $597
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Olympus Stylus 1s

Pentax K-5 IIs
Olympus Stylus 1s
  • $623
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $549
  • 1/1.7 inch
  • Focus peaking
  • Touchscreen
Panasonic ZS100
Olympus Stylus 1s
  • $498
  • 1 inch
  • Larger sensor
  • Bigger pixels
  • $549
  • 1/1.7 inch
  • Slower slow-motion
  • Tiltable Screen

Compared to Sony RX100 VI

Pentax K-5 IIs
Sony RX100 VI
  • $623
  • APS-C
  • Less expensive
  • Larger sensor
  • $1198
  • 1 inch
  • Focus peaking
  • Shoot 4K video
Panasonic ZS100
Sony RX100 VI
  • $498
  • 1 inch
  • Less expensive
  • More telephoto lens reach
  • $1198
  • 1 inch
  • Slower slow-motion
  • Tiltable Screen
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