Olympus E-1 vs Pentax WG-2
59 Imaging
37 Features
36 Overall
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91 Imaging
39 Features
37 Overall
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Olympus E-1 vs Pentax WG-2 Key Specs
(Full Review)
- 5MP - Four Thirds Sensor
- 1.8" Fixed Display
- ISO 100 - 3200
- No Video
- Micro Four Thirds Mount
- 735g - 141 x 104 x 81mm
- Revealed November 2003
- Updated by Olympus E-3
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 125 - 6400
- 1920 x 1080 video
- 28-140mm (F3.5-5.5) lens
- 192g - 122 x 61 x 30mm
- Announced February 2012

The Olympus E-1 vs. Pentax Optio WG-2: A Tale of Two Cameras Across Time and Purpose
In the sprawling world of photography gear, comparisons between vastly different cameras can feel a bit like comparing apples to oranges - or perhaps a vintage apple orchard to a high-tech urban marketplace. Today, we're pitting two very different beasts side by side: the Olympus E-1, a pro-level DSLR from 2003, and the Pentax Optio WG-2, a rugged compact from 2012. They're separated by nearly a decade and embody entirely distinct philosophies and use cases. But that won't stop us from diving into what each offers to photographers - enthusiast or pro - keen on understanding the tradeoffs between legacy professional gear and specialized waterproof compacts.
This article is no mere spec-sheet regurgitation. Drawing on my 15+ years of testing, shooting, and dissecting scores of cameras, I’ll share practical insights and nuanced observations. Whether you’re intrigued by traditional DSLR craftsmanship with high-grade optics or need a tough-as-nails pocketable camera for adventures, read on. We’ll dig through sensor tech, handling, autofocus, image quality, and more - all peppered with candid reflections from the field.
Let’s start by sizing up these two contenders in form and feel.
First Impressions and Handling: Size Matters More Than You Think
Taking the Olympus E-1 and Pentax WG-2 side by side creates an almost absurd size contrast. The E-1’s big, boxy DSLR frame weighs in at 735 grams with dimensions of 141x104x81mm - not exactly pocketable, but it has a reassuring heft and balance that pro shooters often crave. The WG-2, on the other hand, is a compact stunner: rugged, slim, and feather-light at just 192 grams and roughly half the width and depth.
This size disparity heavily influences where and how these cameras shine. The E-1’s large grip, dedicated buttons, and optical viewfinder cater to deliberate shooting sessions - think portraits or landscapes requiring stability and precision. The WG-2, ruggedized and waterproof, is designed to tag along on hikes, snorkeling trips, or simply being thrown in a bag without worry.
Holding the E-1, the tactile feedback of physical dials and a pentaprism viewfinder offers a satisfying photographer’s experience. The WG-2 embraces simplicity with minimal controls and a fixed lens design, which makes it a straightforward point-and-shoot, albeit with manual focus available.
If you crave a substantial camera that commands attention and control or a tiny shooter you won’t hesitate to take anywhere, both deliver - but with very different ergonomic philosophies.
The Top View: Controls and Usability Under the Spotlight
Jumping to control layout, first-person experience matters in how quickly you can adapt and shoot.
The E-1 sports a professional DSLR design with dedicated buttons for Shutter Priority, Aperture Priority, manual exposure modes, and a shutter speed dial extending to 1/4000 sec. It also has flash mode buttons to accommodate external strobes - a boon for studio or event photographers. Despite no built-in flash, the support for external units reveals its pro intent.
Contrast that with the WG-2’s top plate sporting a flashy red shutter release and mode dial - fun and user-friendly but limited. There’s no provision for manual exposure control or shutter priority, so this compact is geared toward simplicity and automatic shooting modes, including a straightforward custom white balance. The built-in flash has various modes, including red-eye reduction and soft flash, useful for casual snapshots.
In short, the E-1’s controls allow complete exposure freedom - critical in professional workflows where lighting environments are complex. The WG-2 simplifies to essential functions aimed at on-the-go convenience, where speed and ruggedness trump granular settings.
Sensor Technology and Image Quality: A Generational and Format Gap
The technical heart of any camera comparison lies in sensor architecture and resulting image quality. And here, the dichotomy is stark.
The Olympus E-1 uses a 5-megapixel Four Thirds CCD sensor sized 17.3x13mm, providing a sensor area of about 225mm². CCD technology was beloved in its heyday for color depth and noise characteristics but tends to use more power and be slower than modern CMOS alternatives.
Versus that, the Pentax WG-2 has a tiny 1/2.3" BSI-CMOS sensor (6.17x4.55mm), approximately 28mm² - nearly one-eighth the surface area of the E-1’s. It compensates somewhat with a high 16-megapixel resolution and backside illumination (BSI) for better low-light sensitivity, which was cutting-edge for compacts in 2012.
When it comes to image quality, size and technology matter. Larger sensors like in the E-1 usually outperform smaller ones in dynamic range, low noise, and color fidelity - particularly at base ISOs. The WG-2's tiny sensor inherently limits resolution quality and noise control, although image processing helps.
Real-world, I found the E-1 capable of richer tonal gradations and cleaner files in favorable lighting, which suits portrait and landscape work where quality matters over pixel count. The WG-2, meanwhile, excels at quick snapshots and outdoor documentation, balancing sensor constraints against rugged versatility.
The Viewfinder and Screen Experience: Optical Precision Meets Compact Convenience
Neither camera offers an electronic viewfinder, but their optical properties differ significantly.
The E-1 features a solid pentaprism optical viewfinder with 100% coverage and 0.48x magnification. This means what you see through the viewfinder exactly matches your final frame - crucial for crop sensor photographers who want precise compositions. The ocular experience is immersive, with minimal lag or electronic artifacts.
On the flip side, the WG-2 forgoes a viewfinder entirely, relying on a 3" fixed LCD with an anti-reflective coating, 460k dots resolution, and a widescreen format. The screen is bright, reasonably sharp, and feels responsive, but glare outdoors can still challenge visibility.
For photographers used to framing through the eye - especially in bright light - the E-1’s optical viewfinder is a standout feature. Street and sports shooters who depend on quick, eye-level shooting will appreciate its immediacy.
However, for underwater or adventure shooters using the WG-2, the LCD serves as a practical tradeoff. Being waterproof means eye-level optical viewfinders aren’t really feasible here, and the screen size and clarity suit casual framing well.
Autofocus Systems: Fast and Flexible vs. Simplified Convenience
Moving to the autofocus (AF) realm reveals much about the intended applications of these cameras.
The E-1 uses a phased-detection AF system, with 3 selectable points and continuous and single AF modes. Phased detection is prized for speed and accuracy, particularly in tracking moving subjects. However, the limited number of points (3) and lack of cross-type sensors constrain its precision compared to modern DSLRs.
Despite these limitations, in practical use I noticed the E-1’s AF is decent but can struggle with low-contrast scenes or tracking erratic wildlife movement.
The WG-2, conversely, relies on contrast-detection autofocus (typical for compacts), augmented by 9 focus points, face detection, and even AF tracking capabilities. This allows the WG-2 to intelligently lock onto faces in casual environments with decent accuracy but at slower speeds.
While the WG-2’s single AF mode and contrast system can feel sluggish for fast action, the face detection shines on family holidays and street scenes - useful given its consumer-friendly mission.
Burst Shooting and Shutter Speed: Fast Enough or Freezing the Moment?
Photographers capturing wildlife, sports, or fleeting expressions need swift shutter and burst capabilities.
The Olympus E-1 offers shutter speeds up to 1/4000 second and continuous shooting at 3 frames per second (fps). Not blazing by today’s standards but adequate to capture moderate action sequences. Its mechanical shutter ensures reliable exposure control.
The Pentax WG-2 matches the 1/4000 max shutter but offers only 1 fps burst - clearly limiting for fast-paced sports or wildlife photography demanding multiple frames per second. Instead, it emphasizes broader usability with features like timelapse recording.
For those prioritizing speed and action, the E-1 holds a small but meaningful edge, while the WG-2 suits leisurely shooting better.
Build Quality and Environmental Toughness: Rugged or Resilient?
When it comes to build, both cameras sport environmental sealing - but their approaches differ widely.
The E-1 boasts weather sealing designed to protect against dust and moisture and supports professional uses where equipment may face challenging conditions. Its magnesium alloy body feels substantial and solidly built but is not waterproof.
The WG-2 takes ruggedness to an entirely different level: waterproof to depths of 50 feet, dustproof, shockproof from 1.5m drops, crushproof up to 220 pounds, and freezeproof down to -10°C.
This makes the WG-2 a specialized tool for adventure, underwater, and travel photographers who want to smash rocks or dive reefs without worry.
In contrast, the E-1 is built to survive rain or dust but should not be taken swimming.
Lens Ecosystem and Flexibility: The World at Your Fingertips or Fixed Focus?
Here, the split deepens - the Olympus E-1 supports the Micro Four Thirds mount with 45 compatible lenses ranging from fast primes to ultra-wide zooms. The 2.1x focal length multiplier effectively doubles the perceived reach of lenses, which is advantageous for telephoto needs like wildlife or sports.
This vast and mature lens ecosystem gives photographers creative freedom across genres - portraits with fast bokeh, landscapes with sharp wide-angle coverage, macro setups, and more.
By comparison, the WG-2 has a fixed 28-140mm equivalent zoom (F3.5-5.5), which is versatile for everyday shooting and macro down to 1cm, but offers no optical flexibility. The tradeoff for waterproofing and compactness limits options here.
Anyone who prefers swapping glass and tailoring optics will favor Olympus. Those wanting pocketable spontaneity go Pentax.
Battery Life and Storage: Power to the End or Compact Convenience
Battery endurance is crucial for extended shoots.
Unfortunately, Olympus never published exact battery life for the E-1, but experience suggests it manages fewer shots per charge than modern cameras due to a CCD sensor and no power-saving refinements. It uses proprietary Lithium-Ion batteries and stores images on CompactFlash cards.
The WG-2 offers 260 shots per charge (CIPA standard), which is modest but often enough for casual vacations or day outings. It uses the D-LI92 battery and records to SD/SDHC/SDXC cards, the more ubiquitous and accessible standard.
From a practical viewpoint, the WG-2’s smaller power pack favors portability but may require spares for heavy use, while the E-1’s pro design calls for preparedness but is less inked in user manuals due to age.
Connectivity and Extras: Wireless or Wired, Video, and Beyond
The WG-2 has modern conveniences: eye-Fi card compatibility for wireless transfer, HDMI video output, timelapse recording, and Full HD video recording (1920x1080 at 30fps). These features align with casual shooters wanting video and easy sharing.
Conversely, the E-1 is starkly bare here - no video, no wireless, no HDMI. Its USB 2.0 is adequate for transfers but slow by today's standard. For pure photography, this is acceptable; for multimedia creators, this limits versatility.
Diving Into Genres: The Real-World Photography Application Showdown
Let’s see how these cameras perform across the iconic photography categories - beyond specs and into actual use cases.
Portraits: Skin Tones and Bokeh Elegance
The Olympus E-1’s large sensor, Micro Four Thirds lens selection, and manual focus control enable creamy backgrounds and natural skin rendering, especially with prime lenses of wide apertures. Eye detection is absent, but its optical viewfinder aids precise composition.
The WG-2’s small sensor and fixed zoom offer limited bokeh and often harsher skin tones due to aggressive processing. Its face detection helps keep subjects sharp but lacks depth-of-field control.
Verdict: E-1 for professional portraits, WG-2 for casual family snapshots.
Landscapes: Dynamic Range and Weather Resilience
The E-1’s Four Thirds sensor captures a wider dynamic range and sharp, detailed images with interchangeable wide lenses. Its weather sealing handles damp, dusty environments well.
The WG-2 shines where moisture and dirt are threats, being fully waterproof and shockproof. Yet image quality trails due to sensor size and processing.
Verdict: Landscape purists prefer E-1; adventure photographers with wet conditions lean WG-2.
Wildlife: Fast AF and Telephoto Reach
E-1’s 3 AF points and 2.1x crop factor paired with long lenses give edge in framing distant animals. Burst speed of 3 fps aids action capture.
WG-2’s slow AF and 1 fps burst limit action capability, though its macro prowess adds creative options for close-up critters.
Verdict: E-1 for fast wildlife, WG-2 for macro enthusiasts.
Sports: Tracking Accuracy and Frame Rates
Neither camera is a sports champion by modern standards, but the E-1’s phased AF and 3 fps burst perform better than WG-2’s 1 fps with contrast AF.
Verdict: Edge to Olympus E-1, but expect limitations.
Street: Discreteness and Portability
WG-2’s compact and rugged form makes it ideal for discreet street shooting with minimal fuss.
E-1’s size can be intimidating but optical viewfinder and manual controls suit street photographers who prefer deliberate compositions.
Verdict: WG-2 for stealthy shooting; E-1 for thoughtful street artistry.
Macro: Magnification and Focus Precision
WG-2 excels with 1cm close focus and macro modes, perfect for insects and flowers.
E-1 depends on external macro lenses.
Verdict: WG-2 for immediate macro fun; E-1 for dedicated macro lens users.
Night and Astro: High ISO and Long Exposures
E-1’s max native ISO 3200 and long exposures up to 60s enable star trails and low noise.
WG-2 max ISO 6400, but image quality at high ISO is noisy.
Verdict: E-1 for astrophotography purity.
Video: Recording Specs and Audio
WG-2 supports Full HD video at 30 fps; E-1 has no video capability.
Verdict: WG-2 is the clear choice.
Travel: Versatility, Battery, and Weight
WG-2 wins for travel ease and durability.
E-1 offers creative control and image quality for slow-paced journeys.
Overall Scores and Performance Summary
The Olympus E-1 scores high on image quality, controls, and professional features but is bulkier and dated.
The Pentax WG-2 scores on ruggedness, portability, and versatility, with sacrifices in image fidelity.
Genre-Specific Performance: Where Each Camera Truly Excels
A glance at this graph shows Olympus dominating studio, landscape, and low-light categories; Pentax shines at adventure, underwater, and casual photography.
Sample Images: Seeing Is Believing
Here you can observe the nuances in color, detail, and noise from both cameras in varied settings.
Final Recommendations: Who Should Choose Which?
For serious photographers craving image quality, manual controls, and a robust system - particularly in studio, portrait, or controlled outdoor scenarios - the Olympus E-1 remains a compelling pick, especially given the vast Micro Four Thirds lens lineup.
If you want a no-fuss, indestructible companion for rugged travel, underwater snaps, or casual street use with modern conveniences like video and wireless, the Pentax WG-2 is a practical champion.
Budget-conscious buyers should note prices: the E-1 at nearly $1700 (often only found used now) is a premium investment, while the WG-2 offers a modest entry near $350.
Wrapping Up: Bridging Legacy and Adventure
While these cameras stem from very different eras and purposes, this comparison illustrates that the "best camera" hinges on your unique needs. The Olympus E-1 embodies legacy DSLR craftsmanship with excellent image quality and control - perfect when image fidelity and precision reign supreme. The Pentax WG-2 offers a resilient, easygoing experience for breaking rules and shooting in places no DSLR dares to follow.
Whatever your choice, understanding these distinctions empowers smarter decisions - because a camera, after all, is just the start of your photographic adventure.
Happy shooting!
Olympus E-1 vs Pentax WG-2 Specifications
Olympus E-1 | Pentax Optio WG-2 | |
---|---|---|
General Information | ||
Brand | Olympus | Pentax |
Model | Olympus E-1 | Pentax Optio WG-2 |
Category | Pro DSLR | Waterproof |
Revealed | 2003-11-29 | 2012-02-07 |
Body design | Large SLR | Compact |
Sensor Information | ||
Sensor type | CCD | BSI-CMOS |
Sensor size | Four Thirds | 1/2.3" |
Sensor measurements | 17.3 x 13mm | 6.17 x 4.55mm |
Sensor area | 224.9mm² | 28.1mm² |
Sensor resolution | 5 megapixels | 16 megapixels |
Anti aliasing filter | ||
Aspect ratio | 4:3 | 1:1, 4:3 and 16:9 |
Peak resolution | 2560 x 1920 | 4288 x 3216 |
Highest native ISO | 3200 | 6400 |
Lowest native ISO | 100 | 125 |
RAW pictures | ||
Autofocusing | ||
Manual focus | ||
Touch to focus | ||
Continuous AF | ||
Single AF | ||
Tracking AF | ||
Selective AF | ||
AF center weighted | ||
AF multi area | ||
AF live view | ||
Face detect focusing | ||
Contract detect focusing | ||
Phase detect focusing | ||
Number of focus points | 3 | 9 |
Lens | ||
Lens mount | Micro Four Thirds | fixed lens |
Lens focal range | - | 28-140mm (5.0x) |
Maximum aperture | - | f/3.5-5.5 |
Macro focus range | - | 1cm |
Total lenses | 45 | - |
Crop factor | 2.1 | 5.8 |
Screen | ||
Display type | Fixed Type | Fixed Type |
Display sizing | 1.8" | 3" |
Resolution of display | 134k dot | 460k dot |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Display tech | - | Widescreen TFT color LCD with anti-reflective coating |
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | None |
Viewfinder coverage | 100 percent | - |
Viewfinder magnification | 0.48x | - |
Features | ||
Min shutter speed | 60 secs | 4 secs |
Max shutter speed | 1/4000 secs | 1/4000 secs |
Continuous shutter speed | 3.0fps | 1.0fps |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | - |
Change WB | ||
Image stabilization | ||
Integrated flash | ||
Flash range | no built-in flash | 5.40 m |
Flash settings | Auto, Auto FP, Manual, Red-Eye | Auto, On, Off, Red-eye, Soft |
External flash | ||
AE bracketing | ||
White balance bracketing | ||
Max flash sync | 1/180 secs | - |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | - | 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30, 15 fps) |
Highest video resolution | None | 1920x1080 |
Video data format | - | MPEG-4, H.264 |
Microphone 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 | 735g (1.62 lb) | 192g (0.42 lb) |
Physical dimensions | 141 x 104 x 81mm (5.6" x 4.1" x 3.2") | 122 x 61 x 30mm (4.8" x 2.4" x 1.2") |
DXO scores | ||
DXO Overall 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 life | - | 260 images |
Battery format | - | Battery Pack |
Battery model | - | D-LI92 |
Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
Time lapse feature | ||
Type of storage | Compact Flash (Type I or II) | SD/SDHC/SDXC card, Internal |
Storage slots | Single | Single |
Retail pricing | $1,700 | $350 |