Nikon 1 S1 vs. Olympus PEN E-P2: An Expert Comparison for Entry-Level Mirrorless Buyers

Choosing your first mirrorless camera - or an affordable, compact backup body - demands a balance of ergonomics, image quality, features, and system potential. Today, we pit two pioneering early mirrorless models head-to-head: the 2013 Nikon 1 S1 against the 2010 Olympus PEN E-P2. Both occupy that entry-level mirrorless niche, yet their design philosophies, sensor technologies, and real-world applications could not be more different.

Having spent hundreds of hours shooting with mirrorless cameras ranging from ultra-compact compacts to flagship pro models, here’s a deep dive into what each camera brings to the table, where they excel, and which might best suit your photographic ambitions in 2024 and beyond.

First Impressions: Size, Build, and Ergonomics

How a camera feels in the hand significantly influences the shooting experience, especially for beginners or those who like to shoot handheld for hours.

At a featherweight 197 grams and with a compact 102x61x30mm footprint, the Nikon 1 S1 is delightfully pocketable. Its slim, rangefinder-style body makes it an excellent travel companion, slipping easily into a jacket pocket or small bag. The plastic construction reflects its budget-friendly nature but doesn’t feel flimsy for casual use.

In contrast, the Olympus PEN E-P2 tips the scales at 355 grams and measures 121x70x36mm. It’s noticeably chunkier and more substantial in hand. Olympus designed this as a true enthusiast retro-inspired mirrorless system, complete with metal construction that feels reassuringly solid. I appreciated the thicker grip contour on the E-P2, which enhances handling with larger lenses - something the Nikon 1 S1’s minimal body struggles with.

From a control perspective, the E-P2 offers a more traditional button layout with dedicated dials for exposure compensation and shooting modes - a boon for photographers who like tactile control without relying on menus. The Nikon 1 S1 keeps things minimalistic: a few buttons and a modest top dial, which is fine for beginners but may frustrate users wanting quick access to settings during fast-paced shooting.

In short:

Ergonomics favor the Olympus PEN E-P2 for those seeking classic manual control and a grippier feel, while the Nikon 1 S1 wins on ultra-portability and simplicity.

Sensor Technology and Image Quality - The Heart of the Matter

Image quality often defines the purchase decision more than any other specs. Nikon and Olympus made very different sensor choices here.

Nikon 1 S1 sports a 1" (13.2x8.8mm) CMOS sensor, delivering 10 megapixels. This is a compact sensor falling between typical compact cameras and micro four-thirds in size - offering a crop factor of 2.7x. The sensor benefits from a fast hybrid AF system but has limitations in noise control and dynamic range.

The Olympus PEN E-P2, on the other hand, uses a larger Four Thirds sensor (17.3x13mm) at 12 megapixels. Despite being older tech (launched in 2010), the E-P2’s sensor yields more native resolution, better color depth, and improved low-light capability.

Let’s compare key DxOMark scores side by side:

While DxOMark gives an overall parity score, the Nikon leans slightly higher in dynamic range, likely due to sensor readout design and noise reduction balance. However, Olympus’s advantage in sensor area bestows a better signal-to-noise ratio at base to mid-range ISOs - a critical parameter for portraits, landscapes, and low-light scenarios.

In practice, I observed:

• Nikon 1 S1 images show decent sharpness at base ISO 100-200 but noise increases quickly past ISO 800. Details can be smoothed aggressively by in-camera processing.
• Olympus PEN E-P2 produces cleaner images through ISO 1600 and retains useful detail and color fidelity under tungsten or fluorescent lighting.

Regarding resolution and crops, Nikon's 10MP output maxes out at 3872x2592 pixels, while Olympus offers 4032x3024 pixels, beneficial for large prints and cropping flexibility.

In sum, Olympus gives an edge in sensor performance, making it more versatile for diverse photographic styles that demand image quality consistency.

Autofocus and Shooting Speed: Capturing the Decisive Moment

For many, especially wildlife, sports, and street photographers, autofocus speed and accuracy along with burst rates matter immensely.

Nikon 1 S1 features a hybrid autofocus system with 135 contrast + phase detection points covering a wide area - one of the densest AF point arrays in entry-level mirrorless at its time. It offers Single AF, Continuous AF (surprisingly missing on 1 S1), and Tracking AF modes with a blistering 15 fps continuous shooting speed.

Meanwhile, Olympus PEN E-P2 relies on contrast-detection autofocus only, with just 11 AF points - far fewer and covering less of the frame. Continuous AF is supported, but the camera maxes out at a comparatively sluggish 3 fps burst rate.

Practical takeaway:

• The Nikon 1 S1’s fast burst rate combined with hybrid AF supports brief sequences of moving subjects such as kids or pets, where frame rate can catch expression changes and movement better.
• The Olympus PEN E-P2’s slower AF and burst place it closer to a casual shooter or slow-moving subjects, but with the trade-off of more precise AF on static scenes.

For typologies:

In my hands, Nikon’s AF delivers snappier focus locks on medium contrast subjects indoors and outdoors - though it can hunt in low contrast or low light. Olympus’s contrast AF on the E-P2 never felt lightning fast, but it afforded accurate focus for composed portraits.

Display and Viewfinder: Finding Your Frame

Neither camera comes with an integrated high-res electronic viewfinder, but the approach to shooting interfaces differs.

Both models have fixed 3-inch LCDs. The Nikon 1 S1’s display sports a higher resolution of 460k dots versus Olympus’s 230k dots HyperCrystal LCD with anti-reflective coating. The Nikon screen is more vivid and crisp, improving live view composition in bright sunlight.

That said, the Olympus PEN E-P2 supports an optional external electronic viewfinder (sold separately), a valuable addition for serious photographers who want eye-level framing - especially in bright conditions or when shooting video. The Nikon 1 S1 does not offer this option.

Neither screen is touch-enabled, which feels dated today but was standard for their respective launch eras.

In terms of usability:

• Nikon provides a bright, sharp screen but no eye-level finder option.
• Olympus gives a less-resolution screen but can add an electronic viewfinder, improving compositional flexibility.

Lens Ecosystem and Compatibility

A critical consideration for any mirrorless system is lens availability - especially for new users wanting room to grow.

The Nikon 1 S1 uses the proprietary Nikon 1 mount with 13 native lenses officially available. While Nikon offers several primes and zooms, the system remains limited compared to larger mounts, especially lacking high-quality, fast-aperture options.

The Olympus PEN E-P2, however, is built on the Micro Four Thirds (MFT) mount - a fully open standard shared with Panasonic and other manufacturers. This delivers access to more than 100 native lenses spanning ultra-wide, fisheye, fast telephotos, and specialized macros.

This availability advantage means Olympus buyers have vast creative scope and upgrade paths, from affordable primes to professional zooms.

Real-World Performance Across Photography Genres

I tested both cameras in a broad range of photographic contexts to help you see which suits your preferred genre best.

Portraits: Skin Tones, Bokeh, and Eye Detection

• Olympus E-P2 shines here with superior sensor size, delivering creamy bokeh when paired with fast prime lenses (e.g., Olympus 45mm f/1.8). The built-in face detection AF helps nail sharp eyes reliably.
• Nikon 1 S1’s smaller sensor compresses backgrounds more, so bokeh is less pronounced. Lacking face or eye detection AF reduces effectiveness for portraits.

Landscape Photography: Dynamic Range and Resolution

• Olympus again leads for landscape due to larger sensor and better dynamic range control - capturing skies and shadows more naturally.
• Nikon’s 1" sensor is adequate for general use but struggles with highlight clipping under bright conditions.

Wildlife and Sports: Autofocus and Burst

• Nikon is clearly better with faster 15 fps burst and hybrid AF tracking.
• Olympus is limited to 3 fps and slower AF, gracefully handling slower-paced shooting.

Street Photography: Discreteness and Portability

• Nikon 1 S1’s smaller size and lighter weight make it less conspicuous, ideal for candid street work.
• Olympus’s solid build projects more presence but offers better shutter feedback and optional EVF.

Macro Photography: Magnification and Stabilization

• Olympus delivers Sensor Stabilization built-in, aiding handheld macro - critical when working close.
• Nikon lacks any IBIS system, relying solely on lens stabilization, if available.

Night and Astro Photography: High ISO Performance

• Olympus offers cleaner images at ISO 1600 and usable ISO 3200 thanks to larger sensor.
• Nikon shows more noise and less exposure latitude for extended night shots.

Video Capabilities

• Nikon 1 S1 shoots Full HD 1080p at 60fps using efficient H.264 codec, good for smooth motion video.
• Olympus E-P2 maxes out at 720p 30fps Motion JPEG, showing its age in video tech.

Travel and Everyday Use: Versatility and Battery Life

• Nikon’s pocketable size and rechargeable EN-EL20 battery (approx. 220 shots) suit casual snapshots but may require spares for all-day use.
• Olympus’s 300-shot battery life and robust body handle heavier daily shooting, albeit at extra weight.

Professional Workflows: Raw, Reliability, and Connectivity

• Both cameras support RAW shooting for post-processing flexibility.
• Nikon offers optional wireless adapters, while Olympus has no wireless features.
• Neither are sealed against dust or moisture, limiting rugged use.

A Data-Driven Summary

Below is a synthesized overview based on lab metrics, hands-on usability, and expert scoring.

Which Camera Excels in What: Genre-Specific Insights

• Portraits: Olympus takes it easily for image quality and face detection.
• Landscapes: Olympus again - higher dynamic range and resolution.
• Wildlife/Sports: Nikon’s autofocus and burst rates make it winner.
• Street: Nikon offers superior portability with acceptable IQ.
• Macro: Olympus IBIS is critical, giving it the edge.
• Night/Astro: Better ISO handling favors Olympus.
• Video: Nikon’s 1080p mode beats Olympus’s dated MJPEG.
• Travel: Nikon’s pocketability and weight make it ideal.
• Professional: Olympus’s mature system, better handling, and lens selection offer more reliability.

The Bottom Line: Recommendations for Buyers in 2024

While these cameras are legacy models, they remain relevant for specific niches and budgets.

Buy the Nikon 1 S1 if:

• You want the smallest, lightest mirrorless possible for casual, everyday shooting.
• Burst speed and AF subject tracking for kids or pets matter.
• You’re on a tight budget but want basic interchangeable lens flexibility.
• Your photography is mainly street or family snapshots without complex demands.

Choose the Olympus PEN E-P2 if:

• You require superior image quality from a larger sensor.
• You shoot portraits, landscapes, or macro where detail and color fidelity matter.
• You prefer manual controls, sensor-shift stabilization, and growable lens options.
• Image quality and handling outweigh the need for portability or speed.
• You want an optional EVF and access to a mature Micro Four Thirds lens ecosystem.

In conclusion, neither camera is perfect - each reflects compromises typical of early mirrorless designs. The Nikon 1 S1 dazzles with speed and portability, while the Olympus PEN E-P2 impresses through sensor performance and system versatility.

Sample Images: A Glimpse Through Each Lens

Nikon 1 S1 front Nikon 1 S1 screen back Olympus E P2 front Olympus E P2 screen back

Reviewing real-world shots side by side, you can see Olympus deliver richer tones, smoother gradients, and better two-stop retention in shadows. Meanwhile, Nikon’s images pop with contrast but show more noise at high ISO. Lens choice and lighting conditions create additional variances, but the sensor foundation and autofocus behavior strongly influence these outcomes.

Final Thoughts on Value

Given current market pricing, the Nikon 1 S1 is best seen as a low-cost entry into mirrorless photography or a travel-friendly pocket snapshot camera. The Olympus PEN E-P2, though pricier, offers significant upgrades in image fidelity, handling, and expandability that may justify the investment for enthusiast beginners or hobbyists.

Advancements in technology have undoubtedly been substantial since their launch - investing in recent models would gain you better autofocus, video, and connectivity. However, these cameras hold nostalgic and practical value for those valuing classic design and fundamental photo skills without breaking the bank.

Both deserve a spot in the photographic history timeline and still offer an accessible doorway into mirrorless artistry - with very different emphases.

Thank you for reading my detailed comparison based on hands-on testing, technical analysis, and years of camera review expertise. I hope this guide helps you confidently navigate the entry-level mirrorless landscape. Should you need advice tailored to a specific use case or current market alternatives, feel free to reach out.

Happy shooting!