1. Built-in bubble level helps make horizontal adjustments easy2. The center column can be inverted for unusual low angle shots3. For speed and convenience, each leg has an automatic leg angle lock mechanism4. 2 position leg angle for uneven terrai
5. Your choice of economical aluminum or light weight carbon fiber
The SIRUI R series tripod line is broken into two different categories - the conventional R1 and R2 series tripods offer many desirable features including:
A Center Column locking collar with a special design that is very convenient to use - even while wearing gloves in cold weather.
A tripod mounting plate with a double headed, reversible screw that accommodates 1/4" and 3/8" tripod sockets.
A useful built-in bubble level to help properly align the tripod.