Does GP-E1 influence IS ?

[wopbv4]

Hi,

I have noticed something strange. 1DX, GP-E1, 70-200 II with 2X.

I had the camera at a 45 degree angle, so half way between landscape and portrait, the IS system was making noisy and I was unable to auto focus.
I switched the camera off , back on again --> everything fine, up to about an hour later when I was pointing upward to take a shot of a bird high in tree.

It looks like that at certain angles ~ 45 degrees the GP-E1 gets confused.

I tried without the GP-E1 and I am unable to reproduce the "problem"

My questions:
1) has anybody had the same problem?
2) is the GP-E1 info used for IS?


This is a minor problem, just switch camera off on and it is solved. I am just curious?

Regards,

Ben

 

[Chris_prophotographic]

Silly question whats your firmware 1.0.2 or .6

some issues with that combo exist

 

[wopbv4]

Hi,

it happened with 1.0.6

Since, I have upgraded to 1.1.1 and have not been able to reproduce the problem.

Thanks for your interest

 

[dr croubie]

Are you sure it was the GPE1?
If your lens was set to Mode 2 IS (ie, panning in one direction only), then the IS would get confused as it doesn't know which way is up if it's at 45 degrees...