tashley
Subscriber Member
Re: More test results from the Cube
So if you personally are sure that you can shoot a 150 lens at 1/25th and 1/12th with MUP and no shake on your RRS I'll get one. But if it's my expectations that are at fault rather than my gear, I'll have to adjust them instead.
SO if you had a few minutes to try that test (say a 150 or thereabouts lens, RRS used in the portrait orientation with MUP of six seconds and shutter of 1/50th 1/25th and 1/12th) I think I'm not the only one who'd really appreciate it!
Thanks as ever for the advice Jack!
Tim
I'm sure you're right. It was very kind of Arca to send me that part but I will now have to try the RRS version. It does seem to me that the Cube with 90 degrees of tilt must be compromised somewhat.Correction: Don't use it in portrait mode with an Arca L plate!
I will add that quite frankly the Cube is far less stable when tilted to 90 than my RRS L bracket on its portrait side is. With the Cube tilted 90, you have two sections extended and your camera is hanging both higher above and pretty significantly to one side of the centerline of the tripod, which in turn *definitely* adds instability to the system. The fact it's better than your plate in portrait mode for you should confirm an issue with your plate's design...
(Sidebar: I had a student with a bad Kirk plate that would not fully tighten to the base of his Mamiya. It worked fine horizontally, but almost always showed a few pixel motion if used in portrait. The culprit was his base's machining was bad and allowed the plate to move within the registration pin clearance. This allowed the camera oscillate on the axis of the mounting bolt my a few hundredth's of a mm whenever the camera was mounted portrait, which in turn showed up as a few pixels of motion in his images at any speeds under 1/125th. In his case, using longer lenses alleviated the problem as the extra off-center weight held the plate against the pins in a basically stable position. This is an example of precisely the type of little error in a part that causes problems, yet so many folks take for granted it being a "perfect" part of the system...)
Sorry,
So if you personally are sure that you can shoot a 150 lens at 1/25th and 1/12th with MUP and no shake on your RRS I'll get one. But if it's my expectations that are at fault rather than my gear, I'll have to adjust them instead.
SO if you had a few minutes to try that test (say a 150 or thereabouts lens, RRS used in the portrait orientation with MUP of six seconds and shutter of 1/50th 1/25th and 1/12th) I think I'm not the only one who'd really appreciate it!
Thanks as ever for the advice Jack!
Tim