The Panasonic GH4 w/ V-Log Upgrade is a professional-grade hybrid photo/video camera for the Micro 4/3 system. It offers Log-based video capture. We also rent the updated Panasonic GH5 w/V-Log. Key features include:

V-Log Firmware Upgrade. This version of the GH4 has the V-Log upgrade installed. If you don’t need this functionality, we also offer a standard GH4. Panasonic uses V-Log/V-Log L to bring a Log-based, flat picture profile to the GH4. Both profiles were developed to feature similar characteristics to Cineon, Kodak’s original characteristic curve for film digitization. Taking full advantage of 4/3 sensor, V-Log L boasts a log characteristic with twelve stops (a two-stop improvement over the GH4’s ten-stop video DR). Both V-Log and V-Log L have the same characteristic curve, and allow the use of LUTs.

16.05MP Live MOS Sensor. The 16.05MP Micro 4/3 sensor delivers high-quality images with high sensitivity and quick response times. The increased signal-speed readout helps to suppress the effects of rolling shutter, and the quad-core Venus Engine image processor provides improved sensitivity, gradation performance, resolution, and color reproduction.

4K Video. The GH4 offers 4K video capture in both 16:9 (3840 × 2160) and 17:9 (4096 × 2160) aspect ratios. You can record 4K video as MOV or MP4 files in high bit rate 100 Mbps IPB codec. Do note that shooting 4K at 100 Mbps requires a UHS Speed Class 3 memory card. The camera can switch system frequencies from 59.94 Hz (23.98 Hz) and 50 Hz, and you can also use 24 Hz frequency for true 24 fps cinematic video. For even more flexibility, the optional "Panasonic DMW-YAGH Interface Unit (no longer a rentable product) gives you two XLR inputs and four SDI outputs (two 3G-SDI and two HD-SDI).

Versatile HD Recording Formats. The GH4 records ultra-high bit rate HD video at 200 Mbps (All-Intra) or 100 Mbps (IPB), as MOV/MP4/AVCHD Progressive/AVCHD at a variety of frame rates. All internally recorded video codecs use 4:2:0 color sampling and an 8-bit color depth, and you can send real-time 4:2:2 8-bit or 4:2:2 10-bit video to external monitors or recorders via micro HDMI.

Fast Autofocus.The high-precision Contrast autofocus integrates Depth from Defocus (DFD) technology to achieve AF speeds of approximately 0.07 sec in AFS mode, enabling the camera to shoot bursts of 12 fps in AFS mode. The 49-point system provides more flexibility when composing shots, with a Custom Multi mode that allows custom selection of what focus points to prioritize.

Pro-Grade Build. The magnesium-alloy body features a dust- and splash-proof design that complements the many native Micro 4/3 weather-sealed lenses.