The Sony A7 comes with a fullframe sensor + Bionz X image processor camera AF speed is 0.07 sec and Panasonic GH4 M4/3 sensor + Venus IX image processor also gives you a AF speed similar to A7 .. that’s 0.07 sec. .. but as you can see in the image below the body size of A7 is similar or smaller than GH4 but the sensor is more than 2 times bigger compared to GH4 sensor.. so handling wise I will prefer A7..No take a look at the bnasic difference in core specification of both the camera.
Panasonic Lumix DMC-GH4 Major Features
- 16.05 MP Digital Live MOS Sensor
- DCI 4K 4096×2160 at 24p
- UHD 4K 3840×2160 at 30p/24p
- Full HD up to 60p
- 3.0″ 1,036k-Dot OLED Monitor
- 2,359K-Dot OLED Live View Finder
- Support for 59.94p, 23.98p, 50p, & 24p
- 4:2:2 8-Bit or 10-Bit HDMI Output
- High-Speed 49-Point Autofocus
- Magnesium Alloy, Weather-Sealed Body
Sony Alpha 7 Major Features
- 24.3MP Full Frame Exmor CMOS Sensor
- BIONZ X Image Processor
- Direct Compatibility with E-mount Lenses
- 3.0″ Tiltable TFT LCD with 1,229K-Dots
- 2.4M-Dot OLED Electronic Viewfinder
- Full 1080/60p with Uncompressed Output
- Fast Hybrid Autofocus; 5 fps Burst Rate
- Built-In Wi-Fi and NFC
- Multi-Interface Shoe and Built-In Flash
- Direct Access Interface
Panasonic Lumix DMC-GH4 vs. Sony Alpha 7 Specification Comparison Table.
Megapixel: Sony Alpha 7 feature more resolution compared to Panasonic Lumix DMC-GH4, hence you get life size images, excellent for large print- out + you also get more details in your images compared to Panasonic Lumix DMC-GH4.3
Bigger Sensor Size: Sony Alpha 7 have bit bigger sensor size compared to Panasonic Lumix DMC-GH4, the bigger sensor area gives you more dynamic range in your images, more color depth and better low light performance aka less amount of noise visible during HIGH ISO mode.
AF System: Panasonic Lumix DMC-GH4 feature contrast based AF system but due to integration of DFD (Depth from Defocus) technology, you get AF speeds of approximately 0.07 sec in AFS mode. On the other hand Sony Alpha 7 feature Contrast Detect +Phase Detect (Hybrid) AF System with 117 AF Points. Sony A7 offers Phase + Contrast based AF system that with 117 active phase AF points and a AF speed of 0.07 Sec despite of its big sensor size and more resolution.
Electronic Front & Rear Shutter – Panasonic Gh4 uses electronic shutter for optional noise free operation. On the other Sony Alpha 7 feature mechanical shutter only.
Top Continuous shooting speed: Panasonic Lumix DMC-GH4 features fast shooting speed compared to Sony Alpha 7.
The Panasonic GH4 can record 4K videos – GH4 can record 4K video at 23.98p, 24p or 29.97p, and 17:9 DCI (Digital Cinema Initiatives) 4K 4096×2160 videos at 24p. 4K resolutions can be recorded as MOV or MP4 files in high bitrate 100 Mbps IPB codec. On the other hand Sony Alpha 7 is limited to Full HD video recording. The Sony Alpha 7 is limited to Full HD Video Recording – With Sony Alpha 7, you can record Full HD videos upto 60 fps frame rate.
Display: Panasonic Lumix DMC-GH4 features Touch Screen display on the other hand Sony Alpha 7 have Tilting display, the choice is yours which one you will prefer,
Viewfinder: Sony Alpha 7 features EVF with Eye Tracking AF, No such feature available in Panasonic Lumix DMC-GH4.
Battery Life (CIPA): Panasonic Lumix DMC-GH4 features longer battery life (According to CIPA) compared to Sony Alpha 7.
Dimensions: Sony Alpha 7 is smaller than Panasonic Lumix DMC-GH4.
Weight: Sony Alpha 7 light-weight than Panasonic Lumix DMC-GH4.
In-Camera RAW Data Development – The Panasonic DMC-GH4 offers in-camera RAW conversion tool where you can customize the color space setting (SRGB / Adobe RGB) white balance, noise reduction, sharpness, and hue. Pre-Styles such as Lumix’s Photo Style, Intelligent D-Range Control, and Intelligent Resolution can also be applied.
Best High ISO Test Between Panasonic GH4 vs. Sony Alpha 7
Verdict: If you are a still shooter we highly recommend you to buy Sony A7 camera since it features FullFrame sensor, more megapixels, advance AF system and compact body design, on the other hand the GH4 features 4K recording option + you also get handful of bunch of M4/3 lenses to choose from.