Does this one fit on the Rollei Actioncam 400? Just bought a Rollei arm extension but it wont fit on my cam...
Answer: You have to buy the right arm extension with a 2PIN adaptor. We do also offer arm extensions for cameras with a 1/4" thread like the 6s/7s wifi. These ones won't fit to your AC400.
The DIGI MP1 won't fit because it also has a tripod thread.
You can use all the accessories here: