A follow focus is a focus control mechanism used in film and video cameras. It is ergonomic rather than strictly necessary; in other words it does not contribute to the basic functionality of a camera but instead allows the operator to be more efficient and precise. It is usually operated by a focus puller but some camera operators prefer to pull their own focus .
The mechanism works through a set of gears on the follow focus that are attached to teeth on the focus ring of the lens. These gears feed to a wheel which, when turned by a focus puller, will spin the teeth and thus the ring on the lens.
This FOTGA DP500IIS follow focus is upgraded based on the previous DP500II version follow focus.It is consisting of a dampened gearbox.There is a button downside can adjust the tension of of the gearbox to reach 2 dampen level.Besides,the inner structure of DP500IIS follow focus is improved,which ensure much more accurate operation for your work.
Further more,the gear wheel on it can be detached and insalled in other side,which makes it suitable for both left-hand and right-hand photographer.
The white mark ring is made of magnet material.It can be detached or attached very easliy on matel.You can also buy additional mark ring.
The special part of this follow focus is it can use different size gears.It can work with 3 different size gear to meet your different need with various lens:
M0.8-38T gear: 38×0.8mm pitch,diameter is approx.28mm
M0.8-43T gear: 43×0.8mm pitch,diameter is approx.31mm
M0.8-65T gear: 65×0.8mm pitch,diameter is approx.49mm
Attention: There is only 1pcs gear included,but you can choose the one you want.
• Fotga upgrade DP500IIS dampen Follow focus x1
• Gear x 1 (optional,choose the right one you want)
• matching gear belt x1 (adjustable for 46mm-110mm)
Material: aluminum.(Only the gear wheel is made of plastic). Gear drive can be mounted from both side.(Works for both right-handed and left handed).
This set includes flexible gearbelt can be used with any zoom or prime lenses with a wide range of lens diamters(any size from 46 to 110mm).
Adjustable locking systems. Mounts onto 15 mm Rod Support (60mm center to center difference).
MOD Drive Gear: Industry standard 0.8 . Compatible with industry stand 15mm rods.
Rail distance:60cm. Rail diameter: 15mm