Category: 4K UHD

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Leica 12-60mm on Panasonic GH5 (4K50p sample)

Posted by Charbax – May 6, 2017

Here's a new sample I filmed using the Panasonic GH5 ($1998 body-only) with the 12-60 Leica Lens ($998) with Kevin Walker of Panasonic UK featuring some of the top lenses that are available for the Panasonic GH5 among many other lens choices that are available for the micro four thirds standard. These include the new 8-18mm wide angle lens ($1099) that I also filmed a sample and Interview with here, the 42.5mm Leica f1.2 Nocticron lens ($1398) which features advanced sharpness and bokeh for amazing photography, portraits or no-so-wide film making, the Leica 12-60mm (which is the one I film this sample with) and the Lumix 12-35 mark2 lens ($998 http://amzn.to/2pSLxbQ), the last two are ones that feature Panasonic's Dual IS 2 image stabilization where the sensor and the lens work together for maximum stability for video and photography. The 42.5mm does feature Dual IS 1 which is perhaps not as advanced as the new Dual IS 2, lacking some certain chip or hardware features that enables Dual IS 2. You can download the original 150mbit/s 4K50p camera video file on Google Drive: (I'll add the Google Drive link here within a few hours as I get the 5GB file uploaded, check back)

Leica 8-18mm on Panasonic GH5 (4K50p sample)

Posted by Charbax – May 6, 2017

Sample video at 4K50p filmed using the new Panasonic GH5 ($1998 body-only) with the Leica DG Vario-Elmarit 8-18mm f/2.8-4 ASPH wide-angle lens ($1099), capturing the sound using my new Saramonic UWMIC9 dual UHF wireless lavs to single receiver (first time I use it, hopefully the sound levels are ok) ($399). Using Panasonic GH5's intelligent auto mode, I am trying to show off some of the quality of this wide angle lens for my style of handheld video-blogging, filming at the Wex Photographic London Lens Show with Kevin Walker of Panasonic UK. Last month, I also filmed with him using the GH5 and the Leica 12-60mm at the Photography Show and I also just filmed a new video with him using the 12-60 Leica lens which I will upload and publish later today, check back for that. This 8-18mm lens doesn't have Dual IS 2 in-lens image stabilization but the Panasonic GH5 has such good in-sensor stabilization that it can stabilize any lens that you put on it and this angle being so wide, it might need in-lens stabilization to look stable when used for video. The wide angle is useful for wide angle photography for architecture, landscapes, streets, groups of people and more. According to Panasonic, the Leica 8-18mm lens uses a series of low dispersion and aspherical elements to realize sharp and clear imagery with controlled fringing and aberrations, and a Nano Surface Coating also helps to minimize flare and ghosting for increased contrast and color accuracy. The durable metal lens body is splash, dust, and freezeproof and it has their fast 240fps autofocus drive for a hopefully good auto-focus performance. You can download the original 150mbit/s 4K50p camera video file on Google Drive: (I'll add the Google Drive link here within a few hours as I get the 13.9GB file uploaded, check back)

Allwinner VR9, 6K30p, 4K60p for VR, Allwinner A63, 28nm Quad-core ARM Cortex-A53 with Mali-T760MP2

Posted by Charbax – April 18, 2017

Allwinner launches their new Allwinner VR9 Octa-core ARM Cortex-A53 with Mali-T760 GPU for higher performance All-in-one VR. 6K VR can render about 6000x3000, thus upcoming VR displays with something around 3000x3000 for each eye. Then Allwinner A63 is Allwinner's new Quad-core 64bit ARM Cortex-A53 with Mali-T760MP2 GPU with support for 2K displays, on a lower power consuming 28nm process, for longer battery life, to come to the marketing within the next 1-2 months from now. At the Allwinner booth is the Seegene.com Allwinner H8 Octa-core ARM Cortex-A7 powered Augmented Reality headset with dual 1280x800 OLED micro-displays reflected through a prism for sale for about $1000. Allwinner also shows some of their latest tablets, kids tablets, AI speakers with Amazon Alexa API support, baby monitoring tablet and camera, panning camera tablet, A64 Powered Tablets and 2-in-1 with Android 7.0 GMS tested. The Aikun Morphus X300 having features like the Nintendo Switch but having been released a while before Nintendo. POS machines, the new Allwinner Y10 quad-core ARM Cortex-A53 for interactive connected photo frames with gesture control support. All-in-one VR. A64 development board by Occocci, LTE connected solutions with Qualcomm, and solutions for the Smart Assistant Speakers market.

3of3 4K60p Panasonic GH5 handheld sample footage, testing 5-axis, autofocus in manual mode

Posted by Charbax – March 20, 2017

Here's my third attempt at making a sample footage at 4K 60p using the new Panasonic GH5, with the help of one Panasonic staff, he used what he thought could be the optimal settings in manual mode to try to demonstrate the 5-axis stabilization, the auto-focus always following and tracking my eyes and face automatically, focusing on devices that I hold. You can download the original 4K 60p 150mbit/s MP4 camera file here on Google Drive.

1of3 4K60p Panasonic GH5 handheld sample footage, testing 5-axis, autofocus in Program mode

Posted by Charbax – March 20, 2017

Please try to ignore my big mistake in not controlling the Shutter speed in this video to prevent to the terrible flickering of the indoor LED lights once we enter the building. I am very sorry I didn't try to adjust the shutter speed while shooting or before hand. I also tried but I couldn't find any easy and fast Anti-flicker post processing options in a video-editor. So here it is, I publish this video as I filmed it anyway. You can still see the GH5's performance in its 5-axis stabilization, auto-focus, color quality in 4K 60p mode. This video features Interview with Kevin Walker of Panasonic UK and Nick Driftwood a photographer who has been testing out pre-production GH5's over the past 3 months and you can see some of his GH5 samples at https://youtube.com/driftwoodtv and https://vimeo.com/user2930807 I'm sorry I didn't ask Kevin or Nick to help me adjust the Shutter speed while shooting this video when I should have better noticed the flickering in the viewfinder.

2of3 4K60p Panasonic GH5 handheld sample footage, testing 5-axis, autofocus in shutter priority mode

Posted by Charbax – March 19, 2017

Filmed on Panasonic GH5 with manual settings (in shutter priority mode, 400-iso then trying to change the iso setting) filmed with Kevin Walker of Panasonic UK at The Photography Show in Birmingham UK. As this is my second time trying to use the camera, I have probably not set all the settings just right, and this was shot on a pre-production model with possibly a non-final firmware for now, please check back later as I will post other samples that I shot with the GH5 today using other settings as I was trying to achieve perfect auto-focus, perfect 5-axis dual image stabilization, perfect anti-flicker, perfect brightness, perfect colors and etc with the types of handheld always moving camera movements that I usually do in my video-blogging. Check back a bit later tonight as I will attempt to de-flicker the first 25-minute video that I shot with the GH5 in its more default P mode but where my shutter speed was set incompatible with the indoor lights flickering too much at the show. I will also try to upload a couple more samples that I shot on the GH5 in 4K 60p. You can download the original 4K 60p 150mbit/s MP4 camera file here on Google Drive.

Nvidia Tegra X2 in Jetson TX2 Developer Kit, dual Denver2 + quad ARM Cortex-A57, Pascal GPU

Posted by Charbax – March 17, 2017

Nvidia Tegra X2 features two Nvidia custom Denver 2 cores, four ARM Cortex-A57 cores with Nvidia's Pascal GPU (made of 256 CUDA cores) made on TSMC's 16nm FinFET+. Nvidia Tegra X2 (codenamed "Parker") delivers up to 1.5 teraflops of performance, about 50% more performance than Nvidia Tegra X1. Enabling Artificial Intelligence (AI), for building advanced robots, drones, smart cameras, portable medical devices, enabling the processing of complex deep neural networks on the edge of the IoT world. While X1 could do 4K at 30fps encode, 4K 10bit 60p decode, X2 can encode 4K H265 at 60p and decode 4K 12bit 60p. Memory bandwidth has more than doubled from 25.6GB/s to 58.3GB/s, you can buy the Nvidia Jetson TX2 Developer Kit for $599 at https://store.nvidia.com/store?Action=DisplayPage&Locale=en_US&SiteID=nvidia&id=QuickBuyCartPage

Rockchip OP1 in Samsung Chromebook Plus

Posted by Charbax – March 3, 2017

Rockchip made the OP1 the world's most optimized Chromebook processor. OP1, also known as RK3399-C, Hexacore dual ARM Cortex-A72, quad ARM Cortex-A53 with Mali-T860MP4 GPU. Rockchip is the only chip maker which has been optimizing processors for Chromebooks over the past 3 years, with all the lessons they learned with the RK3288 quad-core ARM Cortex-A17 which shipped in several Chromebooks in 2015, they were able to improve on that, optimize every detail and in collaboration with Google and Samsung.

Sony Xperia XZ Premium, 4K HDR, Qualcomm Snapdragon 835

Posted by juliusaugustus – March 2, 2017

Sony Xperia XZ Premium is Sony's new high end Android smartphone with a premium design and premium features such as being the world's first smartphone with a 5.46" 4K HDR display, uses Qualcomm Snapdragon 835, 4GB RAM, 64GB Flash, MicroSD, single or dual SIM. With a 19Megapixel back camera and 13Megapixel front camera with ultra slow motion recording support of 960fps in 720p. The XZ Premium can also be used for some pretty impressive 4K HDR VR.

DisplayPort comes with Qualcomm Snapdragon 835 with alt-mode Type-C directly on the SoC

Posted by juliusaugustus – March 2, 2017

DisplayPort is a standard for high resolution diplays. DisplayPort 1.4 can support up to 8K resolution at up to 30 hertz on a single cable and 60 hertz over two cables, here showing it off running on an upcoming announced Dell 8K 32" display. DisplayPort can also support HDR or high dynamic range.

If a device has USB type C and the necessary hardware it can output displayport video through Type C. Through USB Type C a device can be charged while outputting video and being connected to a USB hub. Display port alt mode can switch to HDMI for HDMI displays. The Snapdragon 835 has displayport functionality so more devices in the future should have it. Mobile devices in the future could potentially Run multiple display monitors through a dock.

A dock using High Bit Rate 3 (HBR3) over DisplayPort 1.4 can output to multiple 4k monitors.