Casio EX-H20G vs Olympus 550WP
91 Imaging
36 Features
32 Overall
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94 Imaging
32 Features
17 Overall
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Casio EX-H20G vs Olympus 550WP Key Specs
(Full Review)
- 14MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 64 - 3200
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 24-240mm (F3.2-5.7) lens
- 216g - 103 x 68 x 29mm
- Introduced September 2010
(Full Review)
- 10MP - 1/2.3" Sensor
- 2.5" Fixed Screen
- ISO 64 - 1600
- Digital Image Stabilization
- 640 x 480 video
- 38-114mm (F3.5-5.0) lens
- 167g - 94 x 62 x 22mm
- Revealed January 2009
- Additionally Known as mju 550WP
Meta to Introduce 'AI-Generated' Labels for Media starting next month Casio EX-H20G vs Olympus 550WP: A Hands-On Comparison for Photography Enthusiasts
When it comes to compact cameras from the late 2000s to early 2010s, two models often spark nostalgia and curiosity among enthusiasts and collectors alike: the Casio Exilim EX-H20G and the Olympus Stylus 550WP. While neither are mirrorless wonders nor DSLR powerhouses, these pocket-sized shooters pack in features that were quite innovative during their launch periods - and still offer lessons in compact camera design and real-world usability.
I’ve spent many hours handling, shooting, and dissecting these two cameras, delving beyond spec sheets and marketing blurbs to find out how they truly perform across various photography situations. If you’re considering a budget-friendly, small-sensor compact or simply want an informed perspective on these faded but intriguing cameras, this comprehensive comparison is tailor-made for you.
Let’s begin by setting the stage with their physical presence - the first handshake with your camera often shapes the shooting experience.
Size and Ergonomics: Pocketable Performance or Tiny Trials?
For anyone who’s owned a compact camera, you know size and ergonomics matter - a lot. It’s not just about how small or light a camera is, but how it feels when you’re tracking a moving subject or composing a landscape on the go.

The EX-H20G is slightly larger and chunkier, measuring 103 x 68 x 29 mm and weighing approximately 216 grams. Olympus’s 550WP, on the other hand, is more svelte: 94 x 62 x 22 mm and just 167 grams. That’s a noticeable difference when carrying your gear all day or slipping it into a coat pocket.
Casio’s heft supports a beefier grip, which translates to more confidence handling the camera under varied shooting conditions - something I appreciated during my outdoor tests. The Olympus feels more delicate and compact, which favors discreet street or travel photography but can become fiddly when trying to keep steady or operate buttons quickly.
Ergonomically, both cameras feature fixed, non-touch displays and lack viewfinders - a reminder of their era’s design choices. Handling is overall intuitive on the Casio, particularly due to its top-mounted zoom lever and dedicated buttons, while the Olympus’s smaller control layout occasionally calls for more finger gymnastics.
In sum: if you prioritize a comfortable, secure grip with some camera heft, the EX-H20G fits the bill; for pure portability with lighter carry, the 550WP wins.
Design Details and Control Layout
Let’s peek at the top panels to see how each handles user control - the tactile interface between you and your camera’s brain.

Here, the Casio EX-H20G impresses with a straightforward button layout that feels well-spaced, offering easy access to zoom, zoom lock, flash toggle, and a mode dial. The dedicated shutter speed limit tops out at 1/2000s, reasonably good for a compact; unfortunately, no aperture or shutter priority modes are available, which restricts creative manual control.
Olympus’s 550WP sports a more minimalist approach, with fewer buttons and modes. The maximum shutter speed halves to 1/1000s, limiting fast-action capture somewhat. Manual operation is essentially nonexistent, relying on fully automatic exposure - a limitation for those wanting to fiddle with settings on the fly.
Both cameras lack focus area selection or advanced autofocus modes - reflecting their beginner-friendly but less versatile design philosophies.
Overall, the EX-H20G offers more nuanced control, better suited to enthusiasts who want at least some dialing in, while the 550WP leans towards casual snapshot users.
Sensor Specs and Image Quality: Tiny Chips, Big Stories?
Let’s get to the heart of any camera: the sensor. Both these models pack 1/2.3-inch CCD sensors - the tiny workhorses of compact cameras - but with some notable differences.

The Casio sports a 14MP sensor, boasting a maximum resolution of 4320x3240 pixels, whereas the Olympus offers a slightly lower 10MP sensor capped at 3648x2736 pixels. Although 14MP may look appealing on paper, sensor size and pixel density don’t always translate directly to better image quality, especially in compact cameras where noise and dynamic range are critical.
Both sensors utilize an anti-alias filter to prevent moiré - pretty standard - but neither supports RAW capture, a significant drawback for professionals and advanced enthusiasts craving maximum post-processing flexibility.
In real-world testing, the Casio’s advantage in resolution lent itself to crisper fine detail in daylight landscapes and portraits, where diffraction effects were minimal. However, in low-light or high ISO scenarios, I noticed noise creeping earlier and more visibly in the EX-H20G images compared to the Olympus, which ran cleaner (up to its maximum ISO 1600 versus Casio’s 3200).
Dynamic range - an important factor in capturing details in shadows and highlights - was modest on both, but the Olympus’s sensor delivered a slightly smoother tonal roll-off, especially noticeable in high contrast scenes.
A notable point: the Casio’s sensor dimensions are slightly larger (6.17 x 4.55 mm vs. Olympus’s 6.08 x 4.56 mm), providing marginally more light-gathering area that may contribute to its sharper daytime images.
Bottom line: Casio edges forward in resolution and daylight sharpness, but Olympus performs better in noise control and tonal gradation - trade-offs you’ll want to weigh depending on your shooting style.
A Screen Gamble: Viewing and Interfacing
In an era when tilting and touchscreens had yet to become mainstream, both cameras bear fixed LCD panels of modest resolution.

Casio’s 3.0-inch screen sports 461,000 dots, providing a bright, reasonably detailed live view. The larger display, combined with the Exilim Engine HS processor, affords smoother image playback and menu navigation. I found composing technically challenging shots easier on the Casio due to this enhanced clarity and size.
Olympus equipped the 550WP with a smaller 2.5-inch screen at 230,000 dots - half the pixel count - resulting in a dimmer, grainier image preview that made fine focusing or checking exposure less precise, especially under strong sunlight.
Neither camera offers touchscreen functionality or eye-level electronic viewfinders, making composing under tricky lighting or stability-demanding situations more temperamental.
If your shooting involves lengthy image review or requires precise framing, the Casio’s screen will feel less cramped and more reassuring.
Shooting Modes and Autofocus: How Smart Are They?
The autofocus (AF) systems on these cameras reflect their beginner-oriented designs, featuring simple contrast-detection technology without fancy phase-detect modules or tracking capabilities - even basic features like face detection or multiple AF points are absent.
AF precision is limited to single point focusing (center-weighted), requiring you to be patient and deliberate when composing shots, especially for moving subjects.
In practice, the Casio’s autofocus was marginally faster and a touch more reliable in daylight, thanks to its Exilim Engine HS processor’s enhanced algorithms. Under lower light, both struggled significantly - focus hunting was common and frustrating.
Olympus’s 550WP autofocus system was slower and less consistent, sometimes locking on to unintended objects, possibly aggravated by its more limited 3x zoom range versus Casio’s 10x.
Notably, neither camera offers continuous or tracking autofocus needed for sports or wildlife action - which limits their suitability for fast-paced photography.
For still-life, portraits, and casual snapshots, these AF systems will suffice if you’re prepared for their constraints; for dynamic subjects, patience and manual focusing techniques (via Casio’s limited manual focus option) become paramount.
Lens Performance: Zoom Range and Aperture
Lens specs can often make or break a compact’s versatility.
The Casio EX-H20G sports a generous 24-240mm equivalent zoom (10x) with a maximum aperture range of f/3.2-5.7 - impressive for this category and generation. This wide focal range accommodates everything from landscapes (wide-angle) to distant subjects (telephoto), making it a great travel companion.
In contrast, the Olympus 550WP offers a more modest 38-114mm equivalent (3x zoom) and a slightly brighter aperture range of f/3.5-5.0. This range is adequate for casual shooting and portraits but restricts telephoto reach and creative compression effects.
Both lenses share the same macro focusing distance of about 7 cm - a useful feature for close-ups, although limited by fixed aperture and sensor size.
Aberrations such as chromatic aberration and barrel distortion are well-controlled on both lenses, but the Casio’s wider zoom accentuated vignetting at the edges, noticeable especially at the telephoto end.
Practically speaking, if flexibility across focal lengths matters, Casio’s 10x zoom is the clear winner. For compactness and simplicity, Olympus’s lens fits considerate street or general photography.
Image Stabilization: Keeping Shots Sharp
Both cameras incorporate image stabilization - essential in small sensor cameras with long zooms.
Casio relies on sensor-shift stabilization, moving the sensor to compensate for shake. This mechanical solution is generally more effective and retains image quality during hand-held shooting, especially at longer focal lengths.
Olympus, however, uses digital stabilization, which post-processes the image to reduce blur but often at the expense of resolution or sharpness, and less effective for significant movement.
In rough tests (handheld telephoto in low light), the Casio’s stabilization consistently delivered sharper images with fewer blurred shots, whereas the Olympus often required faster shutter speeds.
For handheld shooting and travel photography, this difference is meaningful - Casio grants more forgiveness when you can’t use a tripod.
Battery, Connectivity, and Storage
From a practical use perspective, battery life and file management can impact your shooting day seriously.
Both cameras employ proprietary NP-90 batteries, with Casio’s rated for around 350 shots per charge, while Olympus claims slightly fewer but comparable numbers.
For connectivity, Casio’s EX-H20G notably supports Eye-Fi wireless SD cards, allowing wireless image transfers - cutting-edge for its time - and has an HDMI output for instant viewing on HDTVs. Olympus lacks wireless features or HDMI.
Storage-wise, Casio uses standard SD/SDHC/SDXC cards, ensuring compatibility and capacity flexibility. Olympus relies on xD-Picture Cards, microSD, and internal memory, limiting options and increasing cost or inconvenience.
USB 2.0 ports on both handle file transfers at similar speeds but Casio’s options feel more future-proof. The presence of GPS in Casio also adds a layer of geotagging that the Olympus 550WP misses.
From a workflow standpoint, Casio offers more conveniences for editors and casual shooters wanting easy sharing and archiving.
Durability & Environmental Resistance
One fascinating aspect is Olympus’s environmental sealing - while not waterproof or shockproof, the 550WP is designed with some weather resistance, making it more rugged against dust and light moisture. This matters for adventure photographers or those prone to shooting in unpredictable outdoor conditions.
Casio’s EX-H20G lacks such sealing, prompting more caution around rain or dusty environments.
I found Olympus’s build reassuring when shooting near water fountains or on humid hikes, whereas Casio required more careful handling to avoid damage.
Real-World Performance Across Photography Genres
Different cameras shine in different shooting conditions. Here’s my take from practical use across key photography disciplines.
Portrait Photography
Neither camera possesses face or eye detection autofocus - a bummer for portrait enthusiasts aiming for tack-sharp eyes and smooth skin tones out of camera.
Casio’s higher resolution sensor and deeper zoom enable tighter headshots with good bokeh at longer focal lengths, although its narrow maximum aperture limits background blur strength.
Skin tones rendered by both cameras are faithful but lack the color depth and dynamic range of larger sensors. Casio’s sensor shows marginally better tonal gradation.
Landscape Photography
Wide-angle and high resolution favor Casio here, especially for expansive vistas. While both have limited dynamic range compared to modern cameras, Olympus’s slightly better tonal roll-off pays off in challenging light situations.
Weather sealing gives Olympus a slight advantage for shoot-on-the-go landscapes in less ideal conditions.
Wildlife and Sports Photography
Neither camera is built for fast action. Both have slow AF and lack burst-shooting modes.
Casio’s 10x zoom offers better reach for distant subjects, but autofocus hunting in low light or fast movement is frustrating.
Olympus’s limited zoom and sluggish AF limit its wildlife and sports use even further.
Street Photography
Olympus’s smaller size and lighter weight give it an edge for discrete shooting. Its environmental sealing can also be handy in variable urban weather.
Casio’s bolder controls and larger screen mean less stealth but more confidence when composing.
Macro Photography
Both cameras have similar macro focusing distances and perform adequately with close-ups, although neither offers focus stacking.
Casio’s sensor-shift stabilization helps achieve sharper handheld macro shots.
Night and Astro Photography
Low light is a challenge for both CCD sensors with small pixels. Casio offers higher ISO, but noise impacts image quality significantly.
Neither supports manual exposure or bulb mode, limiting astro photography.
Video Capabilities
Casio shoots HD 720p video at 30fps with H.264 encoding - pretty decent for its time, although no microphone or headphone jacks.
Olympus only does VGA 640x480 video at 30fps in Motion JPEG, which feels dated and low quality.
If video flexibility matters, Casio wins.
Travel Photography
Combining zoom flexibility, better stabilization, larger screen, and some connectivity, Casio offers the more versatile travel kit, balancing image quality and convenience reasonably well.
Olympus’s smaller form and rugged design cater to more outdoor-focused, minimal carry.
Professional Workflow
Both cameras lack RAW support and advanced controls, limiting their appeal for professional output. The Casio’s wireless transfer and GPS add tiny workflow benefits but neither meets serious professional standards.
Image Gallery: See for Yourself
Visuals speak louder than specs - below are sample images from both cameras side by side across various scenarios, demonstrating their strengths and weaknesses.
Note how Casio’s images generally exhibit more fine detail and zoom breadth, while Olympus’s photos offer better contrast and less noise in some shaded scenes.
Performance Scorecards: Overall and by Genre
A handy summary to quantify how these cameras measure up.
Casio’s EX-H20G scores better on image quality, zoom range, and video, with a solid all-around score for enthusiasts.
For specialized photography - wildlife, sports, or night photography - both falter notably. Travel and landscape lean toward Casio, while street benefits from Olympus’s stealth and durability.
Verdict: Who Should Buy Which?
After thoroughly wrestling with these two compact competitors, here are my recommendations tailored to different user profiles:
-
Choose the Casio EX-H20G if:
- You want the longest zoom range and better versatility for general-purpose and travel photography.
- Video recording matters to you.
- You value a larger screen and wireless image transfer.
- Manual focus and some control tweaking appeal to your inner enthusiast.
-
Pick the Olympus Stylus 550WP if:
- You prioritize a smaller, lighter camera for street or casual use.
- Environmental sealing and ruggedness matter in your shooting environment.
- Low noise in shadows is a priority and you’re content with a shorter zoom.
- You want hassle-free, fully automatic operation with minimal fiddling.
Both cameras show their age with limited manual control, slow autofocus, and small sensors, meaning modern equivalents like the Canon G7 X Mark II/III or Sony WX500 would be recommended if budget and availability allow.
Final Thoughts: Learning from the Past to Inform Today
Exploring the Casio EX-H20G and Olympus 550WP taught me to appreciate how camera design balances feature sets, usability, and intended use. Their contrasting strengths and compromises underscore the importance of matching gear to personal shooting priorities.
While neither camera will dazzle in cutting-edge competitions, they still carve out niches: Casio’s versatility and tech-forward extras versus Olympus’s compact ruggedness and simplicity.
If you’re a photography enthusiast looking for a low-cost, easy-to-carry backup or entry-level camera with surprising flexibility, the Casio EX-H20G deserves a look. For those who prize stealth, resilience, and straightforward shooting, Olympus’s 550WP remains a charming companion.
Happy shooting - and may your gear always feel just right in your hands.
If you have questions about these cameras or smaller sensor compacts in general, feel free to ask - after all, my inbox has seen its fair share of 'compact conundrums' over the years!
Appendix: Key Specs Recap
| Feature | Casio EX-H20G | Olympus Stylus 550WP |
|---|---|---|
| Sensor | 1/2.3" CCD, 14MP | 1/2.3" CCD, 10MP |
| Zoom Range | 24-240mm equivalent (10x) | 38-114mm equivalent (3x) |
| Max Aperture | f/3.2 - 5.7 | f/3.5 - 5.0 |
| Screen | 3.0" 461K Fixed LCD | 2.5" 230K Fixed LCD |
| Image Stabilization | Sensor-shift | Digital |
| Video | 720p (H.264) | 640x480 (Motion JPEG) |
| Wireless Connectivity | Eye-Fi enabled, HDMI output | None |
| Battery Weight/Size | 216g, 103x68x29mm | 167g, 94x62x22mm |
| Environmental Sealing | No | Yes (weather resistant) |
Images credits: All product images and samples referenced are used with permission for editorial review purposes.
Casio EX-H20G vs Olympus 550WP Specifications
| Casio Exilim EX-H20G | Olympus Stylus 550WP | |
|---|---|---|
| General Information | ||
| Manufacturer | Casio | Olympus |
| Model type | Casio Exilim EX-H20G | Olympus Stylus 550WP |
| Otherwise known as | - | mju 550WP |
| Class | Small Sensor Compact | Small Sensor Compact |
| Introduced | 2010-09-20 | 2009-01-07 |
| Physical type | Compact | Compact |
| Sensor Information | ||
| Powered by | Exilim Engine HS | - |
| Sensor type | CCD | CCD |
| Sensor size | 1/2.3" | 1/2.3" |
| Sensor measurements | 6.17 x 4.55mm | 6.08 x 4.56mm |
| Sensor area | 28.1mm² | 27.7mm² |
| Sensor resolution | 14MP | 10MP |
| Anti alias filter | ||
| Aspect ratio | 4:3, 3:2 and 16:9 | 16:9, 4:3 and 3:2 |
| Max resolution | 4320 x 3240 | 3648 x 2736 |
| Max native ISO | 3200 | 1600 |
| Min native ISO | 64 | 64 |
| RAW support | ||
| Autofocusing | ||
| Manual focusing | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Autofocus live view | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Cross type focus points | - | - |
| Lens | ||
| Lens mount type | fixed lens | fixed lens |
| Lens zoom range | 24-240mm (10.0x) | 38-114mm (3.0x) |
| Max aperture | f/3.2-5.7 | f/3.5-5.0 |
| Macro focusing distance | 7cm | 7cm |
| Focal length multiplier | 5.8 | 5.9 |
| Screen | ||
| Type of display | Fixed Type | Fixed Type |
| Display sizing | 3" | 2.5" |
| Display resolution | 461k dots | 230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder | None | None |
| Features | ||
| Minimum shutter speed | 4s | 4s |
| Fastest shutter speed | 1/2000s | 1/1000s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Custom white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash settings | Auto, flash off, flash on, red eye reduction | Auto, Fill-in, Red-Eye reduction, Off, On |
| External flash | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Supported video resolutions | 1280 x 720 (30 fps), 640 x 480 (30 fps) | 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) |
| Max video resolution | 1280x720 | 640x480 |
| Video file format | H.264 | Motion JPEG |
| Microphone port | ||
| Headphone port | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | BuiltIn | None |
| Physical | ||
| Environmental sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 216 grams (0.48 lbs) | 167 grams (0.37 lbs) |
| Dimensions | 103 x 68 x 29mm (4.1" x 2.7" x 1.1") | 94 x 62 x 22mm (3.7" x 2.4" x 0.9") |
| DXO scores | ||
| DXO Overall rating | not tested | not tested |
| DXO Color Depth rating | not tested | not tested |
| DXO Dynamic range rating | not tested | not tested |
| DXO Low light rating | not tested | not tested |
| Other | ||
| Battery ID | NP-90 | - |
| Self timer | Yes (2 or 10 sec, Triple) | Yes (12 seconds) |
| Time lapse shooting | ||
| Storage type | SD/SDHC/SDXC | xD-Picture Card, microSD, internal |
| Card slots | Single | Single |
| Retail price | $300 | $399 |