Mike Dulay
May 1st, 2010, 08:39 AM
I received my Blackbird last night and its not as easy as I hoped but I'm getting there. This new kit included the resting stand and a tripod plate. I'm a complete beginner so I'm hoping you could comment on what I might be doing wrong.
What I've mounted on the stage:
Canon 7D, Sigma 18-50 2.8 EX DC Macro, half-the strap from my optech with quick release.
My balancing process so far:
1) Mount Camera on plate (rear-left most hole)
2) Mount camera with plate on the stage. Slide it forward and back with hand on the gimbal. Try to feel for when it is close to centered. For me, it's the point where it feels heaviest on my hand. It took a while to be sensitive to it. Lock it down tight.
3) Make sure T-Bar is all the way down to start with. I have 0.2lbs weights on each side.
4) Mount the blackbird on the Resting Stand (I have it set on a tripod)
5) Adjust F and R so bubble levels for front and rear are about middle. Each adjustment swings the blackbird so allow for some time to settle before tweaking again. It appears very sensitive to me right now. It takes half a minute for the rig to settle each time I tweak. Smooth Touch isn't engaged as far as I know, I twirled the handle, didn't feel resistance.
6) Once you have a good balance (I don't think there is a perfect setting, or I don't know what it should be like) take it off the resting stand and try "punching" (my term). Then try swinging side to side.
I used Sean's video as a reference:
HWM's CMR Blackbird Review on Vimeo
If the camera doesn't twirl by itself or stay leaning to the side the balance appears right. The bottom may lag after the second swing. There appears to be a trick of moving your arm as well. When doing the test motion try to be even. Think like your hand is on a table and you are moving the camera in a cross "+" pattern.
7) The bottom tends to lag/drag behind the camera at this point. It's like a helicopter doing a banking maneuver. Holding all else equal, move the T-Bar up until it doesn't drag so much. When you punch or swing the bottom should stay mostly horizontal.
8) Put the camera back on the resting stand. The bubble levels show the camera may be leaning again. Makes small adjustments to rebalance.
9) Take the camera out and learn to fly.
Mistakes/Lessons learned so far:
1) Take out the lens cap and hood if you're not going to fly with it. Balance is affected.
2) I tried using recipes for other lenses where I set the plate all the way back, it wasn't right for my lens (it kept spinning despite balance adjustments). Learn to balance per lens before using shortcuts!
3) Secured the remains of the neck strap to the front of the arm (right above the neck of the resting stand). Otherwise it will move around and contribute to pendulum motion.
4) R on the left side is Roll. F on the rear is Forward-Back (Tilt). It's a bit confusing because the markers next to the opposite control!
5) Balance the camera in sequence: Plate/Stage to Gimbal, Roll, Forward-Back, then T-Bar. It helps to keep other variables equal and attack them separately. When adjusting roll, the tilt had the bubble more forward or back to start with. So when I adjust it moves more on the roll rather than both at the same time.
6) Tiny twists make a difference. It needs time to get a feel for it.
7) Tighten the camera on the plate so it doesn't move while in use. Tighten the gimbal to the stage. Make sure the stops on the weights are also tight.
Am I doing it wrong?
1) The bubble level doesn't seem to want to stay centered after using it then putting it back in the resting stand. I've tried tightening everything I could. Is this "normal"?
2) I did push ups and arm curls to prepare for flying it but my deltoid feels worn after a minute (not to point of failure yet). What arm exercises do you use?
What I've mounted on the stage:
Canon 7D, Sigma 18-50 2.8 EX DC Macro, half-the strap from my optech with quick release.
My balancing process so far:
1) Mount Camera on plate (rear-left most hole)
2) Mount camera with plate on the stage. Slide it forward and back with hand on the gimbal. Try to feel for when it is close to centered. For me, it's the point where it feels heaviest on my hand. It took a while to be sensitive to it. Lock it down tight.
3) Make sure T-Bar is all the way down to start with. I have 0.2lbs weights on each side.
4) Mount the blackbird on the Resting Stand (I have it set on a tripod)
5) Adjust F and R so bubble levels for front and rear are about middle. Each adjustment swings the blackbird so allow for some time to settle before tweaking again. It appears very sensitive to me right now. It takes half a minute for the rig to settle each time I tweak. Smooth Touch isn't engaged as far as I know, I twirled the handle, didn't feel resistance.
6) Once you have a good balance (I don't think there is a perfect setting, or I don't know what it should be like) take it off the resting stand and try "punching" (my term). Then try swinging side to side.
I used Sean's video as a reference:
HWM's CMR Blackbird Review on Vimeo
If the camera doesn't twirl by itself or stay leaning to the side the balance appears right. The bottom may lag after the second swing. There appears to be a trick of moving your arm as well. When doing the test motion try to be even. Think like your hand is on a table and you are moving the camera in a cross "+" pattern.
7) The bottom tends to lag/drag behind the camera at this point. It's like a helicopter doing a banking maneuver. Holding all else equal, move the T-Bar up until it doesn't drag so much. When you punch or swing the bottom should stay mostly horizontal.
8) Put the camera back on the resting stand. The bubble levels show the camera may be leaning again. Makes small adjustments to rebalance.
9) Take the camera out and learn to fly.
Mistakes/Lessons learned so far:
1) Take out the lens cap and hood if you're not going to fly with it. Balance is affected.
2) I tried using recipes for other lenses where I set the plate all the way back, it wasn't right for my lens (it kept spinning despite balance adjustments). Learn to balance per lens before using shortcuts!
3) Secured the remains of the neck strap to the front of the arm (right above the neck of the resting stand). Otherwise it will move around and contribute to pendulum motion.
4) R on the left side is Roll. F on the rear is Forward-Back (Tilt). It's a bit confusing because the markers next to the opposite control!
5) Balance the camera in sequence: Plate/Stage to Gimbal, Roll, Forward-Back, then T-Bar. It helps to keep other variables equal and attack them separately. When adjusting roll, the tilt had the bubble more forward or back to start with. So when I adjust it moves more on the roll rather than both at the same time.
6) Tiny twists make a difference. It needs time to get a feel for it.
7) Tighten the camera on the plate so it doesn't move while in use. Tighten the gimbal to the stage. Make sure the stops on the weights are also tight.
Am I doing it wrong?
1) The bubble level doesn't seem to want to stay centered after using it then putting it back in the resting stand. I've tried tightening everything I could. Is this "normal"?
2) I did push ups and arm curls to prepare for flying it but my deltoid feels worn after a minute (not to point of failure yet). What arm exercises do you use?