The Pentax K-3 is one of the most advance APS-C sensor based DSLR available in the market today, on the hand Panasonic GH4 is a high-end mirrorless camera, take a look at the comparison review below…
Panasonic Lumix DMC-GH4 vs. Pentax K-3 Specification Comparison Table.
Megapixel and sensor size: Pentax K-3 feature more resolution and Pentax K-3 have bit bigger sensor size compared to Panasonic Lumix DMC-GH4. The bigger sensor area gives you more light gathering area for better image output.
Low pass filter: Pentax K-3 have no Optional (user selectable ) low pass filter, so you get super Sharpe images while reducing moiré and aliasing, on the other Panasonic Lumix DMC-GH4 does have built-in low pass filter, hence Pentax K-3 better compared to Panasonic Lumix DMC-GH4.
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 Pentax K-3 feature advance HYBRID AF system that combines Contrast Detect +Phase Detect (Hybrid) systems.
More AF Points: Panasonic Lumix DMC-GH4 have More AF points Compared to Pentax K-3, hence you get more area under AF points with Panasonic Lumix DMC-GH4.
Better low light performance – The Pentax K-3 have more ISO range compared to Panasonic Lumix DMC-GH4, The more the ISO range you have the less noise you will see in your images.
Electronic Front & Rear Shutter – Panasonic Gh4 uses electronic shutter for optional noise free operation. On the other Pentax K-3 feature mechanical shutter only.
Top Continuous shooting speed: Panasonic Lumix DMC-GH4 features fast shooting speed compared to Pentax K-3.
The Panasonic GH3 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 Pentax K-3 is limited to Full HD video recording.
The Pentax K-3 is limited to Full HD Video Recording – With Pentax K-3, you can record Full HD videos upto 60 fps frame rate.
Display: Panasonic Lumix DMC-GH4 features touch screen display compared to Pentax K-3
Viewfinder: Pentax K-3 features optical viewfinder on the other hand Panasonic Lumix DMC-GH4 features EVF,
Built-in Wi-Fi + NFC for Smartphone or Tablet sharing and remote shooting – The Panasonic GH4 features built in NFC and Wi-Fi Connectivity.
Battery Life (CIPA): Pentax K-3 features longer battery life (According to CIPA) compared to Panasonic Lumix DMC-GH4.
Dimensions: Panasonic Lumix DMC-GH4 is smaller than Pentax K-3.
Weight: Panasonic Lumix DMC-GH4 light-weight than Pentax K-3.
Rugged Body: Both camera features Rugged body construction
Verdict: Pentax K-3 is very advance camera for still shooters, it features very broad ISO range and user selectable low- pass filter, other features include bigger sensor size, HYBRID AF system, optical viewfinder and Rugged body, on the other hand GH4 comes with small sensor, limited ISO range.. but the biggest advantage we have is 4K video recording in GH4.. so once again if you are a Still shooter we highly recommend you to buy Pentax K-3, otherwise if you are a cinematographer than go with Panasonic GH4.
Buy Panasonic GH4 from Amazon || Buy Pentax K-3 from Amazon