声明：我对相机完全不懂。想着给孩子买个礼物。
请专家点评。我现在想买Sony。
Good question. These four cameras are quite different in design, use case, and strengths. Below is a detailed comparison across various dimensions, plus a summary of pros/cons depending on what you might want to use the camera for.
Here are the four cameras for reference:
Comparison
I'll compare across categories: sensor & image quality, lens / flexibility, video, size & portability, autofocus / speed, usability, and who each camera is best for.
1. Sensor & Image Quality
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Sony RX100 VII
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1.0-inch (13.2 × 8.8 mm) sensor. (DPReview)
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20.1 MP effective. (B&H Photo Video)
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Because of the smaller 1" sensor, it's limited in low light compared to larger-sensor cameras; less shallow depth of field.
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Fujifilm X100VI
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APS-C sensor (23.5 × 15.7 mm) — much larger than 1" compacts. (Fujifilm X)
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40.2 MP effective resolution. (DPReview)
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Has sensor-shift image stabilization. (DPReview)
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Very good image quality, sharpness, and dynamic range given the high-res APS-C sensor.
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Canon G7 X Mark III
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1.0-inch CMOS sensor. (B&H Photo Video)
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20.1 MP effective. (B&H Photo Video)
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Again, a compact sensor; decent image quality, but not as “clean” in low light as APS-C.
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Nikon Z30
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APS-C (DX) sensor, 23.5 × 15.7 mm. (Nikon)
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20.9 MP effective (or ~20.8 MP per spec sheet). (B&H Photo Video)
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Because it's interchangeable-lens, the image quality depends a lot on what lens you pair with it.
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Takeaway (Image Quality):
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The X100VI likely delivers the best still-image detail because of its 40 MP APS-C sensor + stabilization.
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The Z30 gives good image quality with flexibility of lenses.
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The RX100 VII and G7 X III are more compact but trade off some low-light performance.
2. Lens & Flexibility
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RX100 VII
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Fixed (built-in) zoom lens: 24–200 mm equivalent, f/2.8–4.5. (Precision Camera & Video)
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Very versatile zoom for a compact — from wide to quite telephoto. Good “all-in-one” in a pocketable body.
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X100VI
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Fixed prime lens: 23 mm (35 mm equivalent), f/2. (Fujifilm X)
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Because it’s a 35 mm-equivalent, it's great for street, portrait, travel. But no zoom.
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G7 X Mark III
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Built-in zoom: 24–100 mm equivalent (4.2×), f/1.8–2.8. (Canon)
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The lens is relatively “fast” (wide aperture) especially on the wide end, which helps in lower light and for subject separation.
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Z30
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Interchangeable-lens (Z-mount). (B&H Photo Video)
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You can choose lenses based on your needs: wide, telephoto, fast primes, etc. Major advantage for flexibility.
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Takeaway (Lens):
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Want zoom + compactness: RX100 VII is very strong.
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Want bright aperture in a compact: G7 X III (especially at 24 mm) is good.
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Want prime, high image quality: X100VI is excellent.
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Want flexibility + future growth: Z30 gives you lens options.
3. Video
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RX100 VII
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4K video: Yes (UHD 3840 × 2160). (B&H Photo Video)
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High frame rate: It supports very high-speed capture / slow motion. According to B&H, can do high frame rate up to 960 fps (although the “real” usable high-frame depends on mode). (B&H Photo Video)
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Mic input: Yes. Sweetwater mentions an external mic port. (Sweetwater)
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Very capable for vlogging / video in a tiny form factor.
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X100VI
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Video: According to Fujifilm specs, it can record in 4K (and other frame rates). (B&H Photo Video)
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Also supports HEIF and 10-bit recording: per Fujifilm spec sheet. (Fujifilm X)
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Because it’s a prime lens, you won’t get zoom in video; good for cinematic fixed-lens work.
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G7 X Mark III
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4K video: Yes, 4K 29.97 fps per Canon spec. (B&H Photo Video)
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Good for vlogging / content creators.
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However, no in-body stabilization, so you may rely on lens and digital stabilization.
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Z30
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4K UHD video up to 30p. (Nikon)
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Full HD (1080) up to 120p (good for slow mo). (B&H Photo Video)
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Has a mic input. (According to spec sheet: 3.5 mm mic input) (B&H Photo Video)
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Articulating / vari-angle touchscreen — good for vloggers. (Nikon)
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Because it's mirrorless and uses lenses, you can pair with video-optimized lenses.
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Takeaway (Video):
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For pocket vlogging: RX100 VII or G7 X Mark III are very strong due to size + mic port.
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For creative / cinematic fixed-lens video: X100VI is great.
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For serious content creation / YouTube / flexible video: Z30 is best because of lens choice + good video capabilities.
4. Size, Portability & Build
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RX100 VII
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Very compact “premium point-and-shoot.” Fits in a jacket pocket.
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Built-in zoom but still very portable.
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Has electronic viewfinder (EVF). (DPReview)
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Weight is relatively light for what it does. (Specs show small camera body.) (B&H Photo Video)
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X100VI
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Larger than a compact but still quite portable; more “rangefinder-style” build.
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Has both EVF and optical-style viewfinder (a hybrid) — per Fujifilm spec. (Fujifilm X)
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Heavier than pocket compacts due to APS-C sensor and build.
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G7 X Mark III
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Very compact, “pocketable” form factor.
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No viewfinder (just LCD) — a trade-off for small size.
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Z30
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Mirrorless body + interchangeable lenses → not quite pocketable unless with a very small lens.
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350 g for body (per Nikon) is reasonably light for a mirrorless APS-C. (Nikon)
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Vari-angle LCD helps for creative shooting / vlog.
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Takeaway (Portability):
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Most portable all-in-one: RX100 VII or G7 X III.
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Stylish compact: X100VI (but still bigger than 1" compacts).
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Flexible, but less pocketable: Z30 (unless with pancake / small lens).
5. Autofocus / Speed
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RX100 VII
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Very fast AF: 357-point hybrid AF system. (B&H Photo Video)
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Continuous shooting: very high speed; B&H spec says 90 fps burst (Single Burst) and 20 fps with AF/AE tracking. (B&H Photo Video)
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Great for subjects in motion, fast-action compact camera.
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X100VI
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Intelligent Hybrid AF (phase + contrast) per Fujifilm. (Fujifilm X)
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Probably not as fast in continuous action shooting as dedicated action / sports cams, but solid for general / street use.
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G7 X Mark III
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AF system: Canon specs mention “One Shot AF, Servo AF, Manual” etc. (Canon)
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Speed: decent, but may not match the RX100 VII in continuous high-speed burst.
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Z30
Takeaway (AF & Speed):
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For speedy shots / action in compact: RX100 VII wins.
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For portrait / street: X100VI is plenty good.
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For tracking and vlogging: Z30 is strong.
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For general compact use: G7 X III is decent, but less “sports burst”–oriented.
6. Usability & Features
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RX100 VII
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Built-in EVF helps in bright sunlight.
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Touchscreen tilts (for selfies / low angles). (B&H Photo Video)
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Connectivity: Wi-Fi, Bluetooth. (B&H Photo Video)
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Very “ready to shoot” out-of-the-box, with zoom flexibility.
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X100VI
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Classic control dials — Fujifilm is known for very tactile, “photographer-friendly” dials.
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Hybrid viewfinder (optical + EVF) gives flexibility for framing style. (Fujifilm X)
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In-body stabilization helps for handheld shots.
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Good battery life for a compact APS-C (Fujifilm spec: ~310 shots in normal, more in economy). (Fujifilm X)
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Fixed lens means simpler operation (no lens changing).
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G7 X Mark III
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180° tilting LCD — good for vlogging / selfies. (Canon)
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Compact controls but perhaps less tactile than a dedicated photographer’s mirrorless.
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No IBIS; expect to rely on optical stabilization and steady hands.
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Z30
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Fully articulating (vari-angle) screen. (Nikon)
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USB-C power / data? (Spec sheet mentions modern interface). (B&H Photo Video)
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Good for creators: vlog setup, streaming, content creation.
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Interchangeable lenses means a slight learning curve / need to carry lenses.
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7. Price and Value (General Thoughts)
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RX100 VII — Premium compact, higher cost for pocket zoom + performance.
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X100VI — High-resolution APS-C; more expensive, but very capable for photography purists.
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G7 X Mark III — More affordable compact; great for creators who want something better than a smartphone but still very portable.
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Z30 — Probably offers the best “value per flexibility” if you plan to use lenses; also great for video creators.
Pros & Cons (by Use Case)
Here’s a breakdown by what you might be using the camera for, and which one might be best in that scenario:
| Use Case | Best Pick(s) | Why |
|---|---|---|
| Travel / Pocket All-Rounder | RX100 VII | Compact, powerful zoom, good image quality, fast AF. |
| Street / Everyday Photography | X100VI | Prime lens, high-res APS-C, stylish handling, IBIS. |
| Vlogging / Video on the Go | G7 X Mark III / RX100 VII | Both small, flip / tilt screen, mic input, good video. G7 X has very bright lens. |
| Content Creation / YouTube | Z30 | Interchangeable lenses, 4K video, mic input, flip screen: flexible and powerful. |
| Portrait / Artistic Shots | X100VI | Great sensor, gorgeous prime lens, film simulations, solid quality. |
| Sports / Action (compact) | RX100 VII | Fast burst, zoom, good AF system. |
Drawbacks & Trade-offs
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RX100 VII: small sensor limits low-light; battery life in pocket compacts isn’t great; fixed lens (but very versatile).
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X100VI: no zoom; fixed 35 mm might not suit everyone; more expensive; relatively heavier.
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G7 X Mark III: lacks IBIS; limited zoom compared to RX100; lower control compared to a “real” camera.
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Z30: needs lenses to fulfill potential; more gear to carry; not as pocketable; no in-body stabilization (on body) unless using stabilized lens.
My Recommendation (Based on Scenarios)
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If you want a travel-ready “one camera” that fits in your pocket but still gives you zoom and decent quality → RX100 VII.
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If you care about image quality and want a “photographer’s compact” with a fixed prime lens → X100VI.
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If video / vlogging is your priority, especially with limited space, → G7 X Mark III (or RX100 VII if you also want zoom).
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If you plan to grow as a photographer or content creator and want interchangeable-lens flexibility → Z30.
If you like, I can compare real-world image quality (samples), or which one would be best for travel vs portraits vs vlogging given your style — do you want me to do that?
