Olympus 550WP vs Sony A58
94 Imaging
32 Features
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68 Imaging
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72 Overall
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Olympus 550WP vs Sony A58 Key Specs
(Full Review)
- 10MP - 1/2.3" Sensor
- 2.5" Fixed Display
- ISO 64 - 1600
- Digital Image Stabilization
- 640 x 480 video
- 38-114mm (F3.5-5.0) lens
- 167g - 94 x 62 x 22mm
- Announced January 2009
- Additionally referred to as mju 550WP
(Full Review)
- 20MP - APS-C Sensor
- 2.7" Tilting Screen
- ISO 100 - 16000 (Bump to 25600)
- Sensor based Image Stabilization
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 492g - 129 x 95 x 78mm
- Released November 2013
- Previous Model is Sony A57

Olympus 550WP vs Sony A58: A Definitive Camera Showdown for Enthusiasts and Creators
Choosing your next camera is both thrilling and challenging. Two completely different beasts stand before us in this comparison: the Olympus Stylus 550WP, a rugged compact designed for casual adventure, and the Sony SLT-A58, an entry-level DSLR (SLT) promising more control and superior image quality. With over 15 years of experience rigorously testing and comparing cameras, I’m here to unpack what truly separates these two models - beyond specs sheets - and help you decide which suits your creative journey best.
First Impressions - Size, Build, and Handling
Let’s start by getting a tactile sense of these cameras. The Olympus 550WP is a compact, pocket-friendly camera with an emphasis on portability and simplicity. In contrast, the Sony A58 is a more traditional DSLR-style camera, bigger and heavier, built for more serious photography with greater control.
- Olympus 550WP: Measuring just 94x62x22 mm and weighing 167g, it fits easily in your pocket or small bag. The body is waterproof and shockproof to an extent, aimed at durability rather than professional weather sealing.
- Sony A58: Considerably larger at 129x95x78 mm and weighing 492g, its robust DSLR chassis feels sturdy yet comfortable for prolonged handheld use. The body lacks weather sealing, which might be a limitation in harsh conditions.
The difference in ergonomics is immediate. The Sony has a pronounced grip, customizable buttons, and better tactile feedback - ideal when you need speed and precision in manual settings. The Olympus sticks to a minimalist control layout, focusing on point-and-shoot ease.
Control Layout and Interface - How Do They Feel In Your Hands?
Ergonomics go beyond size: a camera’s control scheme can make or break your shooting experience.
- Olympus: Basic controls, simplified menus, and no manual focus ring or exposure modes aside from auto. Perfect for beginners wanting to point and shoot without distraction.
- Sony: Traditional DSLR control cluster with dials for shutter priority, aperture priority, manual exposure, and exposure compensation. The presence of a tilting 2.7" screen (460k pixels) adds flexibility. The electronic viewfinder (EVF) with 1440k pixels and 100% coverage provides an immersive, accurate framing experience.
This means that if you prioritize quick manual adjustments for different shooting scenarios, the Sony feels very natural. The Olympus suits casual shooters best, or as a rugged backup to another camera.
Sensor Technology and Image Quality - The Heart of the Matter
Sensor size directly impacts image quality, dynamic range, noise performance, and depth of field control. This comparison pits a small 1/2.3" sensor against a large APS-C sensor.
Feature | Olympus Stylus 550WP | Sony SLT-A58 |
---|---|---|
Sensor Type | CCD | CMOS |
Sensor Size | 1/2.3" (6.08 x 4.56 mm) | APS-C (23.2 x 15.4 mm) |
Sensor Area | 27.72 mm² | 348 mm² |
Resolution | 10 MP | 20 MP |
Max Native ISO | 1600 | 16,000 |
Raw Support | No | Yes |
Antialias Filter | Yes | Yes |
What this means in practice:
The Sony’s APS-C sensor is roughly 12.5 times larger in surface area, contributing to:
- Cleaner images with less noise at higher ISOs, crucial for night, indoor, or fast-action photography.
- Greater dynamic range, preserving detail in shadows and highlights - vital for landscapes and portraits.
- Higher resolution delivers more cropping flexibility and large print potential.
- Ability to shoot in RAW enables post-processing latitude for color grading and exposure tweaks.
The Olympus, with its small sensor, struggles under low light due to smaller photosites. It also cannot shoot RAW, limiting advanced editing. However, its fixed lens and sensor combination remain reliable for casual snapshots and travel documentation.
Viewing the World - Screen and Viewfinder Usability
You want to see your shot clearly - this means understanding screen and viewfinder technology.
- Olympus 550WP: Fixed 2.5” 230k pixel LCD screen without touchscreen. No viewfinder exists, so composing in bright daylight can be challenging.
- Sony A58: Tilting 2.7” 460k pixel LCD offers easier framing from tricky angles. Its significant advantage: an electronic viewfinder with 100% frame coverage, 0.65x magnification, and high resolution making precise composition possible even in bright sun.
If you are shooting on the go or in bright environments, the Sony’s EVF offers confidence and accuracy. The Olympus is better suited for casual outdoor snapshots when you can rely on the LCD.
Autofocus and Performance - Catching the Moment
For many photographers - sports, wildlife, street - autofocus performance can determine success or missed shots.
Autofocus Aspect | Olympus Stylus 550WP | Sony SLT-A58 |
---|---|---|
AF System | Contrast Detection Only | Phase Detection + Contrast |
Number of Focus Points | None (central focusing) | 15 points, 3 cross-type |
Continuous AF | No | Yes |
Face Detection | No | Yes |
Eye Detection | No | No |
AF Tracking | No | Yes |
Burst Rate (fps) | n/a | 8.0 |
Real-world impact:
The Sony’s hybrid AF system with 15 points and tracking excels in quickly locking onto subjects and maintaining focus even with unpredictable movement. This benefits wildlife, sports, and even candid street shooting.
The Olympus relies on a slow contrast-detect AF, suitable only for relatively static subjects. It’s too limited for action or fast-moving subjects.
Versatility in Lenses and Focal Length
One major decision factor: fixed lens vs interchangeable lenses.
- Olympus: Fixed 38-114mm (35mm equivalent) zoom lens with f/3.5-5.0 aperture. Offers a modest zoom range (3x optical), ideal for everyday snapshots and casual telephoto work.
- Sony: Uses the Sony/Minolta Alpha lens mount with access to over 140 compatible lenses, including fast primes, telephoto zooms, macro, and specialist optics.
Expanding your creative palette is easier with Sony’s system, especially if you want to specialize in portraiture, wildlife, or macro photography.
Durability and Environmental Features
The Olympus 550WP is designed with splash, shock, dust, and freeze resistance in mind - appealing to hikers, beachgoers, and kids.
- Olympus: Offers basic environmental sealing. Ideal for rugged outdoor adventure or beach trips without carrying extra accessories.
- Sony: No weather sealing, requiring care in adverse conditions. More suitable for controlled environments or with protective housing.
Battery Life and Storage
If you’re shooting all day, battery and storage matter greatly.
- Olympus 550WP: Uses proprietary rechargeable battery (details scarce), storage accepts microSD, xD-Picture Card, or internal memory. Compact but limited endurance.
- Sony A58: Uses NP-FM500H battery with approximately 690 shots per charge, SD card storage compatible with popular SDHC/SDXC, as well as Memory Stick formats.
The Sony’s robust battery life supports professional shoots and extended travel without frequent battery swaps.
Video Capabilities - Moving Pictures
Video is integral to many photographers today.
Feature | Olympus 550WP | Sony A58 |
---|---|---|
Max Video Resolution | 640x480 (VGA) | 1920x1080 (Full HD) |
Recording Frame Rates | 30/15 fps | 60/30 fps |
Video Formats | Motion JPEG | MPEG-4, AVCHD, H.264 |
External Mic Input | No | Yes |
Image Stabilization | Digital (for video) | Sensor-shift (photo), no stated for video |
The Sony’s Full HD video with higher frame rates and external microphone input makes it genuinely usable for videographers and content creators. The Olympus’s video is basic, suited only for casual snippets.
Practical Use Cases and Photography Genres
Let’s explore which camera shines in popular photography disciplines:
Portrait Photography
- Sony: APS-C sensor with 20MP resolution and interchangeable lenses allow gorgeous bokeh, accurate skin tones, and face detection autofocus. Real creative control with aperture priority and manual shooting.
- Olympus: Limited control over depth of field and no RAW means portraits are simple snapshots with less flattering background separation.
Landscape
- Sony: Greater dynamic range, high-resolution files for large prints, and a wide lens ecosystem for ultra-wide shots make it the clear winner.
- Olympus: Compact and weatherproof, good for casual landscape travel photography but image quality is limited.
Wildlife and Sports
- Sony: Fast AF, 8fps continuous shooting, and lens choices such as telephotos enable capturing action and distant subjects.
- Olympus: Fixed zoom and slow AF make wildlife and sports shooting frustrating and limiting.
Street Photography
- Olympus: Ultra-portable size and splash-resistance suit discreet candid shooting.
- Sony: Bulkier but faster and more versatile when manual controls and lens choice matter.
Macro
- Sony: Wide range of macro lenses, superior AF precision.
- Olympus: Macro focus from 7cm but optically limited.
Night and Astro
- Sony: Superior high-ISO performance, long exposure capabilities, and RAW capture for night sky photography.
- Olympus: Limited ISO range and noise control mean noisy images.
Travel
- Olympus: Excellent portability and weather resistance, great for adventure travel.
- Sony: More versatile but heavier; suitable if image quality and control are priorities over convenience.
Professional Work
- Sony: Creates high-quality RAW files, supports workflow integration, and offers external flash compatibility.
- Olympus: Limited to JPEG and basic flash; less viable for professional output.
Sample Photos from Both Cameras
To see the practical differences, here are side-by-side images captured in similar conditions with both cameras:
Notice the detail, color rendition, and dynamic range advantages of the Sony files, especially in shadow areas and fine textures.
Performance Scores from Industry Experts
To quantify, here are the overall scores assigned based on lab and field tests:
- Sony A58 rates highly for image quality, autofocus, and versatile features.
- Olympus 550WP scores considerably lower given its simplistic design and sensor limitations.
How They Perform Across Photography Types
Industry ratings by genre give a clearer picture:
This supports the earlier analysis: Olympus is targeted more at casual snapshot users and travel enthusiasts; Sony appeals to enthusiasts and serious hobbyists.
Pros and Cons Summary
Feature | Olympus 550WP | Sony A58 |
---|---|---|
Strengths | Compact, rugged, easy point-and-shoot | Large sensor, versatile lenses, fast AF |
Waterproof splash resistance | Full manual controls, RAW support | |
Affordable for casual use | Strong video features, long battery life | |
Limitations | Small sensor, low light struggles | Larger, heavier, no weather sealing |
No manual exposure or RAW | No touchscreen, modest burst rate | |
No external flash or mic inputs |
Final Thoughts and Recommendations
Who Should Consider the Olympus 550WP?
- You want a simple, rugged point-and-shoot for outdoor adventures or casual travel.
- You value compact size and splash resistance and don’t need advanced control or RAW files.
- You prioritize ease of use and don’t plan to expand into specialized genres.
- Budget is tight, and you want a reliable camera for snapshots rather than professional results.
Who Should Choose the Sony A58?
- You are an enthusiast or beginner photographer ready to grow your creative skills.
- You want the ability to shoot RAW, manually control exposure, and choose from a vast lens ecosystem.
- You plan to shoot portraits, landscapes, sports, wildlife, or video with higher quality.
- You require long battery life and greater flexibility in framing with an EVF and tilting screen.
- You value performance in autofocus, image quality, and video and are willing to carry a bulkier camera.
Bridging Your Photography Journey
Both cameras serve distinct roles: the Olympus 550WP is your compact, splash-ready buddy for carefree shooting, while the Sony A58 is a gateway to serious photography with expansive creative control.
Before making your choice, consider your shooting style, commitment level, and long-term goals. We recommend visiting a store to handle both cameras and, if possible, try them on some shoots. Pair your camera with the right lenses and accessories to maximize potential - whether that’s a rugged case for Olympus or a telephoto zoom for Sony.
Let your next camera be an extension of your artistic vision, not just a device. Happy shooting!
For additional hands-on insights and personalized advice, check out comprehensive tutorials, user forums, and creator communities dedicated to these models. Your perfect camera awaits discovery.
Olympus 550WP vs Sony A58 Specifications
Olympus Stylus 550WP | Sony SLT-A58 | |
---|---|---|
General Information | ||
Manufacturer | Olympus | Sony |
Model | Olympus Stylus 550WP | Sony SLT-A58 |
Also referred to as | mju 550WP | - |
Type | Small Sensor Compact | Entry-Level DSLR |
Announced | 2009-01-07 | 2013-11-27 |
Physical type | Compact | Compact SLR |
Sensor Information | ||
Sensor type | CCD | CMOS |
Sensor size | 1/2.3" | APS-C |
Sensor dimensions | 6.08 x 4.56mm | 23.2 x 15.4mm |
Sensor surface area | 27.7mm² | 357.3mm² |
Sensor resolution | 10 megapixels | 20 megapixels |
Anti aliasing filter | ||
Aspect ratio | 16:9, 4:3 and 3:2 | - |
Highest resolution | 3648 x 2736 | 5456 x 3632 |
Highest native ISO | 1600 | 16000 |
Highest boosted ISO | - | 25600 |
Lowest native ISO | 64 | 100 |
RAW format | ||
Autofocusing | ||
Focus manually | ||
Touch to focus | ||
AF continuous | ||
Single AF | ||
AF tracking | ||
AF selectice | ||
Center weighted AF | ||
Multi area AF | ||
Live view AF | ||
Face detect AF | ||
Contract detect AF | ||
Phase detect AF | ||
Number of focus points | - | 15 |
Cross focus points | - | 3 |
Lens | ||
Lens mount | fixed lens | Sony/Minolta Alpha |
Lens focal range | 38-114mm (3.0x) | - |
Largest aperture | f/3.5-5.0 | - |
Macro focus range | 7cm | - |
Available lenses | - | 143 |
Focal length multiplier | 5.9 | 1.6 |
Screen | ||
Display type | Fixed Type | Tilting |
Display diagonal | 2.5 inches | 2.7 inches |
Display resolution | 230 thousand dots | 460 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Viewfinder Information | ||
Viewfinder type | None | Electronic |
Viewfinder resolution | - | 1,440 thousand dots |
Viewfinder coverage | - | 100% |
Viewfinder magnification | - | 0.65x |
Features | ||
Slowest shutter speed | 4 secs | 30 secs |
Maximum shutter speed | 1/1000 secs | 1/4000 secs |
Continuous shooting rate | - | 8.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Exposure compensation | - | Yes |
Custom WB | ||
Image stabilization | ||
Built-in flash | ||
Flash range | - | 10.00 m (@ ISO 100) |
Flash options | Auto, Fill-in, Red-Eye reduction, Off, On | - |
External flash | ||
AEB | ||
WB bracketing | ||
Maximum flash synchronize | - | 1/160 secs |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Video resolutions | 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) | 1920 x 1080 |
Highest video resolution | 640x480 | 1920x1080 |
Video format | Motion JPEG | MPEG-4, AVCHD, H.264 |
Mic port | ||
Headphone port | ||
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 | ||
Environmental sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 167g (0.37 lb) | 492g (1.08 lb) |
Physical dimensions | 94 x 62 x 22mm (3.7" x 2.4" x 0.9") | 129 x 95 x 78mm (5.1" x 3.7" x 3.1") |
DXO scores | ||
DXO All around score | not tested | 74 |
DXO Color Depth score | not tested | 23.3 |
DXO Dynamic range score | not tested | 12.5 |
DXO Low light score | not tested | 753 |
Other | ||
Battery life | - | 690 images |
Battery type | - | Battery Pack |
Battery model | - | NP-FM500H |
Self timer | Yes (12 seconds) | - |
Time lapse recording | ||
Type of storage | xD-Picture Card, microSD, internal | SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo |
Card slots | One | One |
Retail pricing | $399 | $645 |