• 1/2.3 inch 28.1mm2
  • 10.0 megapixels
  • 36.00mm - 360.00mm (35mm eq.)
  • 1/2.33 inch 28.2mm2
  • 16.0 megapixels
  • 25.00mm - 450.00mm (35mm eq.)

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Differences

Canon SD4500 IS advantages over Pentax RZ18

  • Bigger pixels
    ~ 1.69 vs 1.33 microns
    Better low-light and dynamic range (all else equal)
  • Thinner
    22 mm vs 36 mm
    Thinner
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Longer exposure
    15 vs 4 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light

Pentax RZ18 advantages over Canon SD4500 IS

  • Less expensive
    $300 vs $350 (MSRP)
    Save money for lenses or accessories
  • More telephoto lens reach
    450 mm vs 360 mm
    Capture objects farther away
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • More dots on screen
    460k vs 230k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    16.0 vs 10.0 megapixels
    Higher resolution photos
  • Wider angle lens
    25 mm vs 36 mm
    Capture more of the scene

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • 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
  • RAW file ability
    Neither provide
    Gives you more flexibility to develop your photos later
  • 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
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures

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Buy the Pentax RZ18

Review Excerpt

The Competition

Compared to Sony DSC-HX5V

Canon SD4500 IS
Sony DSC-HX5V
  • $197
  • 1/2.3 inch
  • More telephoto lens reach
  • Shoots 24p video
  • $294
  • 1/2.4 inch
  • Fast startup
  • Built-in GPS
Pentax RZ18
Sony DSC-HX5V
  • $210
  • 1/2.33 inch
  • Less expensive
  • More telephoto lens reach
  • $294
  • 1/2.4 inch
  • Bigger pixels
  • Built-in GPS

Compared to Ricoh CX5

Canon SD4500 IS
Ricoh CX5
  • $197
  • 1/2.3 inch
  • More telephoto lens reach
  • Thinner
  • $399
  • 1/2.3 inch
  • Longer stills battery life
  • Manual focus
Pentax RZ18
Ricoh CX5
  • $210
  • 1/2.33 inch
  • Less expensive
  • More telephoto lens reach
  • $399
  • 1/2.3 inch
  • Bigger pixels
  • HDMI out

Compared to Nikon S9100

Canon SD4500 IS
Nikon S9100
  • $197
  • 1/2.3 inch
  • Thinner
  • Shoots 24p video
  • $254
  • 1/2.3 inch
  • In-camera panoramas
  • Fast startup
Pentax RZ18
Nikon S9100
  • $210
  • 1/2.33 inch
  • Manual focus
  • More pixels
  • $254
  • 1/2.3 inch
  • Bigger pixels
  • In-camera panoramas

Compared to Canon 510 HS

Canon SD4500 IS
Canon 510 HS
  • $197
  • 1/2.3 inch
  • $318
  • 1/2.3 inch
  • Touchscreen
  • More dots on screen
Pentax RZ18
Canon 510 HS
  • $210
  • 1/2.33 inch
  • Less expensive
  • More telephoto lens reach
  • $318
  • 1/2.3 inch
  • Bigger pixels
  • Touchscreen

Compared to Sony H90

Canon SD4500 IS
Sony H90
  • $197
  • 1/2.3 inch
  • Bigger pixels
  • Thinner
  • $223
  • 1/2.3 inch
  • Less expensive
  • Longer stills battery life
Pentax RZ18
Sony H90
  • $210
  • 1/2.33 inch
  • More telephoto lens reach
  • Manual focus
  • $223
  • 1/2.3 inch
  • Less expensive
  • Longer exposure
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