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Here is a link to all of our videos on YouTube. Here you will find many tutorials and overviews of many of our products. Please contact support@smallhd.com if you have any further questions.   https://www.youtube.com/c/smallhd/videos

Yes, we have tested the GH4 with all of our monitors, with great success. This includes 24 htz/24pfs.

You do need to make sure you enable the downconvert HDMI option in your GH4 menu system for the image to show up on your SmallHD monitor.

Troubleshooting tips:

If you are not seeing an image output from your GH4 – Try these things:

1. Plug your camera into an HDMI tv or computer monitor to see if an image appears on those other devices. If you do not get an image on the other devices the problem is probably in the camera or hdmi cable.

2. One way to improve compatibility is to turn on the camera and monitor first before connecting HDMI to the monitor.

Please see the following video for more information:
We have made a video that shows how to achieve full screen on your Canon 5D Mark III:

Here is a link to the DP4 written documentation:

Here are links to all of the DP4 Firmware releases to date. How to install firmware video: Install Instructions: Important: Be careful NOT to lose power during the update. We recommend you use the AC adapter or a fully charged battery. If the DP4 is powered OFF during the software update BEFORE the VERIFY begins, you will have a blank monitor. You should be able to restore everything by successfully completing the Firmware Update. However, should your monitor need to be sent back for repair, associated shipping and repair costs are not covered by the DP4’s warranty. USB Drive: It is highly recommended that you use a drive that is 2GB or less and formatted FAT or FAT32. NOTE: The drive should contain only ONE *.bin file, the *.bin downloaded from www.smallhd.com/support. ALWAYS delete the old *.bin from the USB drive before making the next update. You can have other files on the drive, but only one *.bin file.
  1. Insert USB drive into PC/Mac, remove any existing .bin file from the drive and make sure that it is formated FAT or FAT32.
  2. Download the desired Firmware version from www.smallhd.com/support. Be sure to read the “Changelog/Issues” file. (See link to the right of the download)
  3. Copy the *.bin file to the USB drive. The file must NOT be in a folder.
  4. Safely Eject the USB drive from the PC/Mac and insert it into the USB adapter cable that was included with your DP4.
  5. Switch the DP4 OFF and plug the cable into the DP4’s Mini-USB port. While pressing down on the DP4’s scroll wheel, Switch ON the DP4.
  6. Once white text appears on the black screen, you can stop pressing the thumb wheel.
  7. When prompted, switch the DP4 OFF, remove the USB cable, and then back ON again. You now have new software. (If the DP4 gets stuck during the “Verification” process for more than 4 minutes, the update is complete and the DP4 can be switched OFF and the USB cable removed.)
You may install the firmware in any order, however you may ONLY have one *.bin file on the drive at one time. If you experience any problems please contact us using the support form at www.smallhd.com/support
To get a full screen on a Canon DSLR you should activate the canon preset by scrolling the clickwheel to the right when no menu’s are present. Then scroll down to the DSLR preset and activate it by clicking your scroll wheel. You can increase the size of the image being sent to the monitor even more by hitting the info button on the Canon camera a few times. Also please make sure you have the newest firmware installed on your monitor. For even more info check out this video:
Here is a video tutorial that will show you how to use the DP4’s control’s:
First set a Multi-Meter to DC Voltage and confirm that your leads are correct. Plug your D-Tap cable into your battery. Put the Red Probe into the center of the D-Tap Barrel Plug and the Black Probe on the outside of the Barrel Plug. If your battery is set up correctly you will be getting a +12 Volt readout. If you battery has the wrong polarity you will be getting a -12 Volt readout. If you plug the Barrel Plug into the monitor with a -12 Volt reading you will damage your monitor by burning up the Motherboard and possible the LCD Panel, which are not covered under your warranty. Here is a link to a short video that will show you how to test the polarity:
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