Greetings Greggadventure,
I am sorry to hear that your Canon HF G70 camcorder is having these couple of issues. Please note that the camera's auto focusing function may not work well in certain situations like with reflective surfaces, subjects with low contrast or without vertical lines, fast moving subjects, when subjects are at different distances, through dirty or wet windows, and in night scenes.
Per the video that you have provided a link for, it may be to where there is not enough contrast in the scene or at least in the area where the camcorder is trying to focus on. You may try to use manual focus to lock in your focus on where you would like for it to remain sharp.
I would suggest to also check the lens to ensure that it is free from debris since debris on the lens may sometimes cause focus issues.
Regarding the white balance issue, it is odd that the camcorder is creating videos with a blue tint even after you have tested it with different backgrounds. We would suggest sending the camcorder to our repair facility if the camcorder is not functioning correctly.
Canon U.S.A., Inc. has created a new online repair portal that allows you to set up service in a few simple steps. The repair portal gives you the ability to set up service for multiple pieces of equipment at once, and to receive a repair estimate in the majority of cases, depending on your model and issue. The portal also allows you to upload images or videos that will assist us in repairing your product. You can also select how you wish to be notified of the progress of your repair. The portal's service history section allows you to view all services that have been performed on any of your camera or video products since January 7, 2020.
Please follow the link below to access our online repair portal to arrange for service:
https://mycanon.usa.canon.com/signin
Instructions for Accessing and Using the Online Repair Portal.
You will need to access or create your My Canon Account.
If you already have a My Canon Account and your product is already registered, simply click on the “Get Repair Services” link on the left menu and follow the onscreen instructions to arrange for service for your product.
If you have a My Canon Account and your product is not registered, you must register your product first. Click on the “Get Repair Services” link on the left menu, then click on the “Register Product” link on the right. After your product is registered, click on the “Get Repair Service” link on the left menu and follow the onscreen instructions to arrange for service for your product.
If you do not have a My Canon Account, you will need to create one. After you create your account, click on the “Add Product” link to register your first product. After your product is registered, click on the “Get Repair Service” link on the left menu and follow the onscreen instructions to arrange for service for your product.
Once you have completed the repair request, you will have an opportunity to print a copy of the request for your records. This request form will also contain shipping instructions and an address label that you will attach to the outside of your shipping box when mailing your equipment for repair.
