Mary Lindhjem suggested a speed of no more than 5 mph.
|Pentax K-20D, Tokina ATX-Pro 80-200 zoom @ 80mm, ISO 100, f/11 @ 1/2 second|
I wanted to give it a try, but not having a partner to drive for me, I had to improvise.
I started by securely strapping my tripod in the passenger seat and mounting the camera to it. I connected my remote shutter release to the camera.
The camera was set to aperture priority auto-exposure with +1/3 stop exposure compensation at f/11; manual focus, focused as close to the Hyperfocal Distance as I could manage. For this particular lens at f/11, that gives a D.O.F. stretching from about 10 feet to infinity.
I left the in camera shake reduction turned on.
The road I chose is the main road in William B. Umstead State Park in Raleigh, NC. This is the eastern section off of Glenwood Ave (US Hwy 70). This road already has a low speed limit at 25mph, so there was less risk for me driving it at 5 mph.