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Panasonic DMC-GH4 Lumix 4K Digital Camera

World’s First DSLM Camera with 4K Video Recording Capability

Panasonic just announced the 16-megapixel LUMIX DMC-GH4 (GH4), a hybrid interchangeable lens camera for stills with 4K cinematic video recording capability. The high-precision Contrast AF system in the GH4 is further enhanced by Panasonic’s integration of DFD (Depth from Defocus) technology which shortens the time to focus to achieve ultra high speed AF of approx. 0.07 sec. Not only speed but also the operability is enhanced thanks to the addition of Face / Eye Detection AF or 49-point AF with Custom Multi AF mode. The GH4 also integrates Wi-Fi connectivity (IEEE 802.11 b/g/n) with NFC (Near Field Communication) technology camera to offer a more flexible shooting experience and instant image sharing with easy operation.

Panasonic developed a new 16.05-megapixel Digital Live MOS Sensor for the GH4 that achieves high quality, high sensitivity image recording with quick response. Approx. 50% higher speed signal readout suppresses rolling shutter effect even when using an electronic shutter or recording video. Taking full advantage of the Live MOS Sensor, dynamic range is expanded by max.1/3 stop at low ISO sensitivity.

Panasonic DMC-GH4 Back LCD

The Venus Engine image processor is newly developed boosting its performance with a quad-core CPU that lets high speed signal processing required for rich video recording such as 4K. The advanced Multi-process NR (Noise Reduction) applies effective noise reduction and edge processing according to each component frequency. Plus, a newly added Random Filter granulates chromatic noise to be blended into the image even more naturally. As a result, a max. ISO 25,600 has been achieved. On the other hand, optimizing the combination design of new sensor, new imaging engine and low pass filter enhances the limit resolution by more than 5% while suppressing moire. A newly adopted aperture filter is capable of controlling over a wider frequency range. It adjusts the amount of sharpness according to the frequency level, resulting in faithful stereoscopic effect. The Venus Engine also improves color reproduction with accurate evaluation of each color even if it is similar not only in color phase but also in saturation and luminosity.

Panasonic DMC-GH4 Top

The new GH4 has evolved into a professional video camera. One of the most prominent advances is unlimited 4K video recording (Cinema 4K: 4096×2160 / 24 fps and QFHD 4K: 3840×2160 / up to 30 fps) in MOV/MP4. The GH4 is also capable of recording Full-HD video with ultra high bit rate at 200 Mbps (ALL-Intra) or 100 Mbps (IPB) without recording time limit. Users can freely choose the format from MOV, MP4, AVCHD Progressive and AVCHD at a variety of frame rates according to the usage. For professionals working globally, the system frequency can be easily selected between 59.94Hz (23.98Hz) / 50.00Hz / 24.00Hz. The GH4 is also capable of real-time image output to an external monitor via an optional micro HDMI cable simultaneously while recording video. For more unique video expression, VFR (Variable Frame Rate) or Time Lapse/Stop Motion Animation can be produced with GH4 without postproduction processing. In addition, a variety of practical functions required for professional video recording are newly integrated.

https://www.youtube.com/watch?v=f0s9i4rQGp8

The GH4 incorporates Eye Detection AF which automatically sets focus right on the eye of human face. Focus point is increased from 23 (GH3) to 49 points for more flexible composition together with Custom Multi mode in which users can freely select the blocks needed to focus out of the 49 points. Now the 1-area AF area can be seamlessly magnified not only in manual but also in auto focus mode. Tracking AF is also advanced in the point of tracking accuracy by estimating the subject’s movement. Focus point can be set on any part of the 100% field of view. The time to show magnified image can be selectable in Pin-point AF. Focus point can be magnified either with the MF ring or with cursor key in MF Assist mode. In the Touch Pad AF, the position can be set either on absolute/relative coordinate. Together with the Eye Sensor AF which starts focusing by just looking into the viewfinder, the AF/AE lock button works for AF for quick auto focusing even when using the LVF.

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Panasonic DMC-GH4 Back

The GH4 boasts newly developed high-precision, high-speed dual OLED (Organic Light-Emitting Diode) displays of 2,359K-dot LVF (Live View Finder) and 1,036K-dot rear monitor. Both the LVF and rear monitor adopt an OLED to achieve high speed response with minimum time lag while enhancing the resolution. Notably, the OLED for the LVF in GH4 boasts 10,000:1 high contrast for superior color reproduction. The new 16:9 Wide Screen LVF boasts approx. 1.34x / 0.67x (35mm camera equiv.) magnification and 100% field of view and eye point of approximately 21 mm. Thanks to the newly designed large eyecup, the visibility of LVF is dramatically improved. The image output between the LVF and the rear monitor is switched automatically with the eye sensor on the LVF, which features options of sensitivity – high, low and off – to reduce false operation during touching on the rear monitor. The 3.0-inch 1,036K-dot free-angle OLED rear monitor (3:2 aspect) with wide-viewing angle rotates 180° to the side and tilts 270° up and down offers approx. 100% of field of view. This rear monitor adopts static touch control for more smooth operation either in shooting or in playback. Both LVF and rear monitor adopted OLED to achieve high speed response with a minimum time lag while enhancing the resolution. Notably, the OLED for the LVF in GH4 boasts 10,000:1 high contrast for superior color reproduction. Now the excellent visibility comes closer to OVF. On the other hand, live view image can also be displayed in monochrome through the LVF enabling concentrating on contrast.

Panasonic DMC-GH4 Right

Panasonic DMC-GH4 Left

Output/Input Terminals
The GH4 comes with a variety of connection terminals for more flexible shooting options. The 3.5mm microphone jack is for high quality audio recording using an external microphone and the 3.5mm headphone jack which enables monitoring the audio while shooting video real-time. It is also capable of real-time image output on an external monitor via an optional HDMI micro cable simultaneously while recording video. In addition to these, the GH4 complies with AV outputs (Audio 2ch, Composite), flash sync terminal and 2.5mm jack for remote controller.

For reliable recording of rich video, the GH4 complies with UHS Speed Class 3 (U3) which is the new speed class standard of SD memory card. The UHS Speed Class 3 (U3) guarantees a constant minimum write speed of 30MB/s to respond to market needs for 4K video.

Optional Accessories
A GN58 is a powerful External Flash (DMW-FL580L) and is newly added to the LUMIX G optional accessories which allows high speed charging of approx.1.7 sec. Not only with wireless control but also LED video light function are available. The Stereo / Shotgun Microphone (DMW-MS2) which enables stereo/shotgun switch even allows more precise sound recording with selectable Super Shotgun / Lens Auto / Manual option on GH4.

Price and Availability
Not yet announced.

https://www.youtube.com/watch?v=b4nSGFcIN40

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https://www.youtube.com/watch?v=6P9yXhcHM-k

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https://www.youtube.com/watch?v=hHKJ5eE7I1k

Panasonic DMC-GH4 Reviews

From Critics Around the Web

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