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8

Working with arm posts

G-70x

 Arm Posts

Changing arm posts

To change posts, rotate the mechanism to expose the release lever. Raise the lever to 

horizontal to unlock the post. Note: the mechanism will remain in place. Replace post 

with desired length post, leaving at least 1.125in (29mm) protruding above the arm. 

Clamp by rotating lever back to vertical.

The quickest way to increase lens 

height is to use a longer post in the 

arm and to raise the socket block on 

the vest. This increase in gimbal height 

(and therefore lens height) - up to 11.5in 

(29cm) - puts the gimbal about as high 

as one can comfortably reach with the 

operating hand. A longer arm post could 

be used, but one can’t reach the gimbal 

and do the most precise work. 

Be aware that using a long arm post 

can exert enormous torque on the arm 

bearings and bones. The heavier the 

camera is, the shorter the arm post 

should be. If you want a very high or 

low lens height, get a light camera!! 

Remember, a long arm post alters the 

height of all the components equally, 

which may make viewing the monitor 

more difficult or annoying. Check to see 

what works; every situation is a little 

different. The ability to quickly change 

arm posts or to adjust the height of the 

socket block on the vest, and/or to extend 

the sled components, (all without tools!) 

gives the operator many choices to 

achieve a given range of lens heights and 

viewing options. 

Rotational drag

To set the rotational drag, turn the drag 

knob clockwise to increase drag and 

counterclockwise to decrease drag. 

Changing a post does not affect the drag 

setting.

General uses 

In general, use the shortest possible post 

in the arm. This avoids possible clearance 

problems below the arm. 

drag 

knob

The Tiffen Company, 90 Oser Avenue, Hauppauge, NY 11788 

 

631-273-2500 • 1-800-645-2522 •  www.tiffen.com

Tiffen Steadicam Operations, 2815 Winona Avenue, Burbank, CA 91504 

 

Phone: 818-843-4600 • 818-843-8321

© The Tiffen  Company, LLC, manual version 7/1/2010

Summary of Contents for G-70x Arm

Page 1: ...p n LIT 257010 J G 70x Arm Ultra2 Shadow stabilizers ...

Page 2: ...chanism an arm post drag control and a kickback link Titanium springs Adjustment knobs Kick back link Arm post release lever G 70x Arm Arm post drag control Arm post Double action hinge Rod ends Socket Titanium springs Socket quick release pin Weight adjustment knob aka lift Upper arm section Adjustment knobs Forearm section Isoelastic adjustment screw aka ride ...

Page 3: ...e socket block varies greatly by the operator s body type If you have big pectorals and a flat stomach the top screw is almost all the way in If you ve been eating well and exercising less the top screw will be further out Always dial in the top screw first to your setting then turn in the bottom screw until it just snugs up against the fitting There is no need to tighten the bottom screw very har...

Page 4: ...arm segment is raised to its highest unloaded position so it is easiest to adjust before you pick up the sled It can also be adjusted when flying the sled by booming up fully The G 7x0 arm becomes progressively less iso elastic as the arm s lift is increased Heavier loads will require a counterclockwise adjustment of the Ride knob to obtain or maintain the desired iso elasticity Lighter loads will...

Page 5: ...lower than normally for shots with low boom heights with very little penalty in performance Minor changes in sled weight several lbs kg do not require adjustment of the ride knob Some operators prefer a more centered ride like a IIIA arm with a less than maximum load or a more centered ride when hard mounted on rough terrain Experiment and use the arm the way you like it Slightly raise or lower th...

Page 6: ...e pin can fit together in two ways The design intent is to kick back the upper arm segment as shown in the photos When kicked back the arm moves further out of the way while operating with the sled more in front of you or to the arm mounting side The parts need to be set one way for regular operating and the opposite way for goofy foot operating Goofy foot ...

Page 7: ...st but also reduce the iso for the forearm That way when raised the operator is lifting a little the torque is reduced correspondingly and the transferred torque is likewise reduced hence a smaller tendency for the upper arm section to go over centers Even with the iso dialed down the G 70x arm s response in the 50 degree range is more iso elastic than other arms position making the upper arm sect...

Page 8: ...t should be If you want a very high or low lens height get a light camera Remember a long arm post alters the height of all the components equally which may make viewing the monitor more difficult or annoying Check to see what works every situation is a little different The ability to quickly change arm posts or to adjust the height of the socket block on the vest and or to extend the sled compone...

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