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| User list | Rules | You are not logged in.
The other day I was testing my Merlin, with a Canon Eos 400D and a Canon 75-300mm IS lens.
The problem is, when the lens is extended to 300mm the weight of the camera plus lens is slightly too much for the lens... at least when used rougly horizonally it's fine, but the moment you point the lens down to any real degree it has a tendancy just to rotate down under gravity.
I was thinking therefore if I got a metal plate with a whole drilled in it that sandwiches between the camera and the mount sticking out of the back of the camera, with a couple of holes at the other end of the plate allowing a couple of long bolts (with number of nuts added to reflect the weight of the lens). Do you think this arrangement would counterbalance the weight of the lens, and relieve the problem?
(I hope this explanation is clear enough)
Chris.
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Hi Chris!
1) tighten the counter-screw of the vertical arm movement (you have to dismantle the Merlin´s vertical grey cap)
2) if possible avoid to move the vertical arm by hand - always use the motor. Otherwise you wear off the glitch (? don´t remenber the name).
3) simply hang a little weight onto the camera to balance the lens. I made a little strap onto which i can fix different weights if needed.
This way you can use really heavy lenses. Regard vibrations after movements due to any free hanging weights!
best, Klaus
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klausesser wrote:
Otherwise you wear off the glitch (? don´t remenber the name).
Klaus, that's called HIV: Hann Isch Verjesse ...
next time you may write: friction clutch
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Thanks for the replies guys.
Are there any guides around to how to alter the setting of this screw? Or at least any images in which it is pointed out please?
Thanks again,
Chris.
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Be aware that if the camera is not couterbalanced, you can break the gears...
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ChrisLong wrote:
Or at least any images in which it is pointed out please?
here is the inside view of the axis counter nut: http://href.to/b7Z
if you tighten it to much you definitely will damage the gears as the clutchs purpose is just to avoid this
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Thanks for the Paul. I'm quite nervous about making this adjustment - do you definitely think its better to do this than to work on a counterbalance, or is this just seen as an easier solution?
Thanks again,
Chris.
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I know that the Merlin has not a setup at a specified torque
my first one out of the box was tight, the second one was very loose
when I mounted my own crown I made the nut handtight, so it still allows to slip
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