Thanks for your help everyone. My T-Ring arrived a few days ago along with the clouds in Victoria. Since then my wife has had to put up with me grumbling while looking out the window. Tonight there was a little break in the clouds so I took my chances.
I didn't know whether or not I would need some more equipment to change the focal length of my camera but I was keen to find out. It looks like it might not be an issue. This photo is blurry but there was still quite a bit of travel in both directions left.
I'm still trying to figure out if the blurriness issue is clouds or focusing, something to test on a cloud free night I guess. It's quite difficult to get the focus exactly right. Perhaps if I used the Camera App on a larger screen.
Gear
Telescope: Saxon 10" Dobsonian Reflector
Camera: Panasonic DMC-G7 (Micro Four Thirds)
Camera Mount: Kowa T-Ring for Micro Four Thirds
Camera Remote Control: Mobile Phone (Panasonic ImageApp)
Settings
No Camera Lens
ISO: ISO 200
Exposure: Single Exposure 1/25th of second
Post Processing
Contrast, White Balance, Sharpening and Exposure Masking in Lightroom.
