Canon A1100 IS vs Pentax RZ18
93 Imaging
34 Features
17 Overall
27
92 Imaging
38 Features
37 Overall
37
Canon A1100 IS vs Pentax RZ18 Key Specs
(Full Review)
- 12MP - 1/2.3" Sensor
- 2.5" Fixed Screen
- ISO 80 - 1600
- Optical Image Stabilization
- 640 x 480 video
- 35-140mm (F2.7-5.6) lens
- 150g - 95 x 62 x 31mm
- Released February 2009
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Screen
- ISO 80 - 6400
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 25-450mm (F3.5-5.9) lens
- 178g - 97 x 61 x 33mm
- Announced September 2011
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The following is a detailed analysis of the Canon A1100 IS and Pentax RZ18, one is a Small Sensor Compact and the latter is a Small Sensor Superzoom by rivals Canon and Pentax. There exists a sizeable gap among the image resolutions of the A1100 IS (12MP) and RZ18 (16MP) but both cameras provide the same sensor sizing (1/2.3").
Photography GlossaryThe A1100 IS was announced 3 years prior to the RZ18 which is a fairly large gap as far as camera technology is concerned. Each of the cameras have the same body design (Compact).
Before going straight to a comprehensive comparison, here is a brief summary of how the A1100 IS grades vs the RZ18 with regards to portability, imaging, features and an overall mark.
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Below is a preview of the gallery images for Canon PowerShot A1100 IS and Pentax Optio RZ18. The whole galleries are provided at Canon A1100 IS Gallery and Pentax RZ18 Gallery.
Reasons to pick Canon A1100 IS over the Pentax RZ18
| A1100 IS | RZ18 |
|---|
Reasons to pick Pentax RZ18 over the Canon A1100 IS
| RZ18 | A1100 IS | |||
|---|---|---|---|---|
| Announced | September 2011 | February 2009 | Newer by 31 months | |
| Manual focus | More precise focus | |||
| Screen dimensions | 3" | 2.5" | Bigger screen (+0.5") | |
| Screen resolution | 460k | 115k | Clearer screen (+345k dot) |
Common features in the Canon A1100 IS and Pentax RZ18
| A1100 IS | RZ18 | |||
|---|---|---|---|---|
| Screen type | Fixed | Fixed | Fixed screen | |
| Selfie screen | No selfie screen | |||
| Touch screen | No Touch screen |
Canon A1100 IS vs Pentax RZ18 Physical Comparison
In case you're looking to travel with your camera regularly, you need to think about its weight and size. The Canon A1100 IS has outer dimensions of 95mm x 62mm x 31mm (3.7" x 2.4" x 1.2") having a weight of 150 grams (0.33 lbs) and the Pentax RZ18 has specifications of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") along with a weight of 178 grams (0.39 lbs).
See the Canon A1100 IS and Pentax RZ18 in the latest Camera and Lens Size Comparison Tool.
Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you have attached during that time. Following is a front view proportions comparison of the A1100 IS versus the RZ18.

Considering dimensions and weight, the portability grade of the A1100 IS and RZ18 is 93 and 92 respectively.
Canon A1100 IS vs Pentax RZ18 Sensor Comparison
Typically, it can be difficult to picture the contrast in sensor dimensions only by seeing specifications. The picture below might provide you a stronger sense of the sensor dimensions in the A1100 IS and RZ18.
Plainly, both the cameras have the same sensor dimensions albeit different resolution. You should expect the Pentax RZ18 to produce more detail with its extra 4MP. Higher resolution will also let you crop pictures a bit more aggressively. The more aged A1100 IS will be disadvantaged in sensor technology.
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Canon A1100 IS vs Pentax RZ18 Specifications
| Canon PowerShot A1100 IS | Pentax Optio RZ18 | |
|---|---|---|
| General Information | ||
| Brand | Canon | Pentax |
| Model | Canon PowerShot A1100 IS | Pentax Optio RZ18 |
| Type | Small Sensor Compact | Small Sensor Superzoom |
| Released | 2009-02-18 | 2011-09-12 |
| Body design | Compact | Compact |
| Sensor Information | ||
| Processor Chip | Digic 4 | - |
| Sensor type | CCD | CCD |
| Sensor size | 1/2.3" | 1/2.3" |
| Sensor dimensions | 6.17 x 4.55mm | 6.08 x 4.56mm |
| Sensor surface area | 28.1mm² | 27.7mm² |
| Sensor resolution | 12 megapixel | 16 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 and 16:9 | 1:1, 4:3 and 16:9 |
| Highest resolution | 4000 x 3000 | 4608 x 3456 |
| Highest native ISO | 1600 | 6400 |
| Lowest native ISO | 80 | 80 |
| RAW images | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| AF continuous | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| Center weighted AF | ||
| Multi area AF | ||
| Live view AF | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 9 | 9 |
| Lens | ||
| Lens mount | fixed lens | fixed lens |
| Lens focal range | 35-140mm (4.0x) | 25-450mm (18.0x) |
| Largest aperture | f/2.7-5.6 | f/3.5-5.9 |
| Macro focus range | 3cm | 4cm |
| Crop factor | 5.8 | 5.9 |
| Screen | ||
| Screen type | Fixed Type | Fixed Type |
| Screen size | 2.5 inch | 3 inch |
| Screen resolution | 115k dot | 460k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Screen technology | - | TFT color LCD with Anti-reflective coating |
| Viewfinder Information | ||
| Viewfinder | Optical (tunnel) | None |
| Features | ||
| Lowest shutter speed | 15 seconds | 4 seconds |
| Highest shutter speed | 1/1600 seconds | 1/2000 seconds |
| Continuous shooting speed | 1.0fps | 1.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Change WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | 4.00 m | 2.80 m |
| Flash options | Auto, Fill-in, Red-Eye reduction, Slow Sync, Off | Auto, On, Off, Red-eye, Soft |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 640 x 480 (30 fps), 320 x 240 (30 fps) | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) |
| Highest video resolution | 640x480 | 1280x720 |
| Video data format | Motion JPEG | Motion JPEG |
| Mic input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | None | Eye-Fi Connected |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 150g (0.33 pounds) | 178g (0.39 pounds) |
| Physical dimensions | 95 x 62 x 31mm (3.7" x 2.4" x 1.2") | 97 x 61 x 33mm (3.8" x 2.4" x 1.3") |
| DXO scores | ||
| DXO All around score | not tested | not tested |
| DXO Color Depth score | not tested | not tested |
| DXO Dynamic range score | not tested | not tested |
| DXO Low light score | not tested | not tested |
| Other | ||
| Battery model | 2 x AA | D-LI92 |
| Self timer | Yes (2, 10, Custom, Face) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/MMC/MMCplus/HD MMCplus | SD/SDHC/SDXC, Internal |
| Storage slots | 1 | 1 |
| Price at launch | $160 | $210 |