Compact Superzoom Showdown: Canon PowerShot SX620 HS vs Panasonic Lumix DMC-ZS3

When it comes to compact superzoom cameras, the balance between reach, image quality, and portability is a tricky one. I’ve spent a good amount of time with two popular models in this niche: the Canon PowerShot SX620 HS, announced in 2016, and the older Panasonic Lumix DMC-ZS3 (aka TZ7), unveiled back in 2009. Both cameras pack a punch with their extensive zoom ranges and compact designs, but they cater to somewhat different expectations and shooting styles.

I’ll take you through a detailed, hands-on comparison, exploring how these compact zoomers stack up across a variety of photography scenarios - from portraits to landscapes, wildlife to video - while dissecting their technical chops, ergonomics, and value. Whether you’re a casual snapper or an enthusiast looking for a versatile travel buddy, you’ll find practical advice here on which camera fits your needs best.

Let’s dive in.

First Impressions: Size, Handling, and Design Personality

Size and ergonomics are often underestimated in compact cameras, yet they can make or break your enjoyment during extended outings. The Canon SX620 HS is noticeably smaller and lighter - measuring just 97x57x28mm and weighing 182 grams - compared to the Panasonic ZS3’s chunkier 103x60x33mm and 229 grams.

The Canon’s sleeker footprint feels more pocketable, ideal if you crave spontaneous street or travel photography with minimal bulk. Panasonic’s ZS3, while still compact, is a bit more substantial and offers a more defined grip area, which might appeal to users who prefer a firmer hold and don’t mind the extra heft.

From a control and user interface perspective, both cameras keep things simple but, interestingly, Canon’s 2016 design incorporates improved tactile buttons and menus on the top plate, making quick adjustments feel more intuitive.

In contrast, the ZS3 has a more dated button layout, with fewer dedicated controls, a smaller screen, and no touchscreen capabilities on either model (though neither camera is touchscreen-enabled, despite the Canon being newer). For photographers who value ergonomics during fast-paced shooting, Canon’s refinements pay off.

Sensor and Image Quality: The Heart of the Matter

Both cameras pack 1/2.3" sensors, commonly found in compact superzooms, but Canon’s SX620 HS uses a 20MP backside-illuminated CMOS sensor, while Panasonic’s ZS3 features a 10MP CCD sensor.

This difference isn’t trivial. The newer BSI CMOS technology in the SX620 HS translates into better light gathering, improved low-light sensitivity, and less noise at high ISOs. From hands-on tests and controlled studio evaluations, the SX620 HS consistently produces sharper images with more fine detail, especially in dim conditions - a point I’ll highlight again in the low-light and night photography section.

On the flip side, Panasonic’s CCD sensor, though antiquated compared to modern CMOS variants, excels in color rendition and delivers pleasing skin tones in the right lighting. However, its maximum native ISO tops out at 6400, but with considerably more noise beyond ISO 400, realistically confining usability to daylight or well-lit scenarios.

Neither camera supports RAW shooting - a compromise reflecting their focus on casual photographers - so image processing plays a crucial role. Canon’s DIGIC 4+ processor offers more refined noise reduction and sharpening algorithms than the older Panasonic processing engine.

In short, Canon’s sensor and processing combo offer better image quality flexibility across lighting conditions, while Panasonic favors happy snapshots under good light.

Zoom Range and Lens Performance: Reach and Flexibility

Let’s talk zoom power - the real selling point of these superzooms:

• Canon SX620 HS offers an astonishing 25-625mm equivalent range, a massive 25x optical zoom.
• Panasonic ZS3 has a 25-300mm (12x) zoom - still respectable, but less than half Canon’s reach.

This extensive zoom range on the Canon gives you unparalleled framing versatility: from wide-angle environmental portraits and landscapes, all the way to distant wildlife or sports action. That said, be aware of optical compromises over this range: at full telephoto, expect softer images and slower apertures (f/6.6 max aperture), which affects low-light capability and autofocus speed.

The Panasonic’s shorter 12x zoom boasts a slightly faster maximum aperture at the long end (f/4.9 vs. f/6.6), so it performs slightly better in moderate tele zoom low-light situations.

Neither lens supports interchangeable optics - it’s fixed zoom - but both have decent macro focusing abilities, with Canon impressively down to 1cm, handy for close-up shots.

Focus Systems and Speed: Capturing the Moment

Autofocus on compact cameras can be a weak link, yet it’s essential for capturing fleeting moments.

Canon’s SX620 HS uses contrast-detection autofocus with 9 selectable focus points and face detection. It also supports continuous AF and subject tracking. While not cutting-edge by DSLR or mirrorless standards, it generally delivers quick and reliable focus lock on static and moving subjects.

In comparison, Panasonic’s ZS3 relies on a 11-point contrast-detection system with no face detection or continuous AF tracking - a clear limitation when chasing subjects like kids, pets, or sports. I found the ZS3 slower to refocus, especially in low light.

So if autofocus speed and reliability matter to you, Canon wins this round.

Dissecting the LCD and Shooting Interface

Both cameras have fixed, non-articulating 3-inch LCDs, but there’s a notable difference in resolution.

Canon’s screen boasts 922k dots, rendering images with crispness and good color accuracy, whereas Panasonic’s older screen tops out at just 460k dots, leading to less sharp preview images and trickier manual focusing.

Neither screen has touchscreen functionality or a built-in viewfinder, which might challenge composition in bright sunlight. However, the Canon’s improved LCD quality helps compensate for the lack of an EVF, making it easier to frame your shots outdoors.

Image Samples in the Wild: Real-World Output

Theory is one thing, but I always say, “Show me the pictures.” Here’s a side-by-side gallery of sample shots from both cameras in various lighting and subject conditions.

Canon SX620 HS front Canon SX620 HS screen back Panasonic ZS3 front Panasonic ZS3 screen back

You’ll notice the Canon consistently produces cleaner, more detailed images - especially at longer focal lengths and higher ISOs. Colors look balanced with less noise after sunset. Panasonic’s images, while pleasant in bright light, show softness and color shifts in shadows.

For casual social media sharing or vacation snaps, both serve well. For anything beyond, Canon’s sensor and processor edge give you more usable shots.

Burst Shooting and Continuous Performance

Both cameras target casual photographers, but burst rate influences how well you can capture action.

Canonical SX620 HS offers a modest 2.5 fps burst rate, while Panasonic’s ZS3 clocks slightly lower at 2 fps.

Neither are champions in sports or wildlife photography due to their continuous shooting limitations, but Canon’s faster burst plus continuous AF makes it better suited for those times you want to shoot children or pets in motion.

Video Capabilities: Which Camera Packs the Better Movie Punch?

Video lovers might find both cameras a bit lacking by today’s standards.

Canon SX620 HS records Full HD 1080p at 30fps with MPEG-4 / H.264 compression, whereas Panasonic ZS3 maxes out at 720p HD at 30fps using the AVCHD Lite codec.

Neither supports manual video controls, external microphones, or advanced features like 4K or high frame rates. However, Canon's Full HD output delivers better resolution for casual video sharing.

Both cameras offer optical image stabilization, which helps smooth handheld footage - a boon given the heavy zoom of the Canon lens.

If video matters to you, Canon will satisfy casual shooting better, though serious videographers should look elsewhere.

Battery Life and Storage: How Long Can You Shoot?

Battery plays a crucial role for travelers and event shooters.

Canon SX620 HS achieves approximately 295 shots per charge using its proprietary Battery Pack - respectable for a compact zoom.

Panasonic ZS3’s battery life figures aren’t officially disclosed here, but real-world usage hovers around 250 shots per charge with its rechargeable battery.

Both accept SD cards, but Panasonic also supports MMC and offers internal storage, a nice backup option if your card fills up.

Neither camera includes USB charging, relying on external chargers - something to keep in mind when packing light.

Connectivity and Sharing Features

Canonical SX620 HS benefits from built-in Wi-Fi and NFC for fast photo transfer to smartphones or remote control via apps - a definite advantage in today’s connected world.

Panasonic ZS3 lacks wireless features entirely, which can limit on-the-go sharing convenience.

If immediate social media sharing is important to you, Canon’s wireless capabilities are a big win.

Handling Various Photography Genres: Specialized Use Cases

Now, how do these cameras perform across specific photography niches? Let’s take a look.

Portrait Photography

Skin tone reproduction is surprisingly good on both, but Canon’s 20MP sensor and face detection autofocus improve sharpness and color accuracy. The Canon’s more extended zoom and closer macro distance (1cm vs 3cm) allow more creative framing and background separation, although neither camera offers manual aperture control for deeper bokeh effects.

Landscape Photography

Both cameras’ wide angles begin at 25mm equivalent, sufficient for landscapes, but Canon’s higher resolution sensor better captures details. Neither feature weather sealing, so rough outdoor conditions are a gamble. Canon wins for dynamic range and subtle detail retrieval, helpful when shooting in tricky lighting.

Wildlife Photography

Despite being compact, Canon’s 25x zoom and continuous autofocus outperform Panasonic’s 12x zoom and limited AF. However, burst rate limitations cap action capture ability. Still, Panasonic’s slower AF and shorter zoom leave Canon clearly better for casual wildlife photography.

Sports Photography

Neither camera is tailored for sports - slow burst rates and lack of phase-detection autofocus hold them back. Canon’s continuous AF and faster 2.5fps burst give it a modest edge for slow action.

Street Photography

The smaller Canon SX620 HS is more discreet and lighter, a definite plus on the street, while Panasonic’s weight and chunkier body might draw more attention. Both cameras lack silent shutters and electronic viewfinders - a disadvantage in some street scenarios.

Macro Photography

Canon impresses here with a 1cm minimum focusing distance compared to Panasonic’s 3cm, allowing you to capture finer details. Optical stabilization helps, but no focus stacking or manual macro controls limit advanced work.

Night and Astro Photography

Canon’s BSI CMOS sensor and higher maximum ISO (3200 native) are better suited for low-light and star shots. Panasonic’s older CCD struggles with noise beyond ISO 400. Neither camera supports RAW saving, manual exposure beyond presets, or bulb shooting, limiting long-exposure potential.

Video

As mentioned, Canon’s 1080p at 30fps and optical stabilization outperform Panasonic’s 720p AVCHD footage. Lack of mic ports restricts audio quality. Both suitable only for casual video.

Travel Photography

Canon’s light weight, huge zoom range, improved battery life, and Wi-Fi connectivity make it an excellent travel companion. Panasonic’s longer battery life is unclear, its heavier body a downside, and lack of wireless dims its travel appeal.

Professional Workflows

Neither camera supports RAW or tethering, crucial for professionals. Both target casual shooters or hobbyists prioritizing convenience over advanced control.

Build Quality and Weather Sealing

Neither model offers dust, water, shock, or freeze resistance. The Canon feels a bit more robust due to plastic finish improvements, but it’s primarily a consumer-grade compact for fair weather and everyday use.

Price-to-Performance: What’s the Best Bang for Your Buck?

Considering current pricing - Canon SX620 HS around $279, Panasonic ZS3 roughly $200 (used, since it’s discontinued) - Canon offers a more modern sensor, superior zoom reach, better autofocus, and video capabilities, justifying the higher price.

Panasonic’s ZS3 remains attractive for budget-conscious buyers satisfied with moderate zoom and basic features.

Summing Up the Scores and Recommendations

The Canon SX620 HS consistently leads across image quality, zoom versatility, autofocus performance, video capabilities, and connectivity. Panasonic ZS3, while a solid compact for its time, now feels dated and limited for enthusiasts expecting more.

Who Should Choose Which?

Choose Canon SX620 HS if:

• You need a lightweight, pocketable camera with extremely long zoom reach (25x).
• You want better image quality across lighting conditions, including low light.
• Wireless connectivity and convenient sharing are important.
• You value faster autofocus and continuous shooting for casual action.
• You shoot occasional Full HD video.

Pick Panasonic ZS3 if:

• You are on a tight budget and only need a modest zoom range (12x).
• Image quality expectations are relaxed and mainly daylight photography.
• You want a slightly chunkier grip and don’t mind limited video.
• You prefer a simpler camera without wireless features.

Final Thoughts From My Experience

Having tested both cameras extensively, the choice is clear if you want the best mix of zoom reach, image quality, and shooting agility in a compact form. The Canon SX620 HS strikes a remarkable balance, delivering solid photos, useful features, and a travel-friendly package - a testament to how far compact zoom cameras have come as recently as 2016.

Panasonic’s ZS3, while respectable in its era, now mostly appeals to the ultra-budget user or collector interested in a simple point-and-shoot.

Dear Canon, if you’re listening: a snap-on EVF and RAW support on future SX6xx successors would make these exceptional travel companions even better.

For now, if you appreciate versatility and quality without the complexity or cost of interchangeable-lens cameras, the Canon PowerShot SX620 HS earns my nod.

Thank you for reading. Feel free to ask questions or share your shooting experiences below!