What is the difference between a doorway dolly and an arm dolly?

A doorway dolly is a simple platform on wheels, narrow enough for doorways. An arm dolly adds a lifting arm, hydraulic or electric, so the camera can rise and fall during a shot.

Does track come with a used dolly?

Sometimes. Check the listing for the track type and how many feet are included; Back to One dolly listings state both.

Can a hydraulic dolly be serviced after I buy it?

Yes. Makers and specialist technicians service dolly arms, and a recent service record is worth asking for.

Used camera dolly for sale: what to check before you buy

A used camera dolly is a wheeled platform that moves the camera smoothly, from simple doorway dollies to arm dollies made by companies such as J.L. Fisher and Panther. Before you buy, check the arm for leaks and drift, the wheels and steering, and any track sold with it. Price depends on the make and model, the arm type, condition and service history, and accessories such as risers, offsets, seats and track.

What to check before you buy

Arm: on hydraulic or electric arms, it rises and lowers smoothly and holds position under load without drifting.
Leaks: no hydraulic fluid on the chassis, the arm or the floor beneath it.
Steering: every steering mode works and locks cleanly, with no play in the linkage.
Wheels: track and soft wheels free of flat spots and cracks, with no play in the bearings.
Brakes and batteries: brakes hold, and batteries on electric dollies charge and hold.
Track: straight sections that join flush, with the ties and wedges listed.
Accessories and service: risers, offsets, seats, push bars and cases, and when the maker last serviced it.

Questions buyers ask

What is the difference between a doorway dolly and an arm dolly?: A doorway dolly is a simple platform on wheels, narrow enough for doorways. An arm dolly adds a lifting arm, hydraulic or electric, so the camera can rise and fall during a shot.
Does track come with a used dolly?: Sometimes. Check the listing for the track type and how many feet are included; Back to One dolly listings state both.
Can a hydraulic dolly be serviced after I buy it?: Yes. Makers and specialist technicians service dolly arms, and a recent service record is worth asking for.