Sony A7 iii - Strange Anomaly

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Bigfungun

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Chris
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I was shooting basketball last night with the Sony A7 iii - MC -11 adapter and the Sigma 85mm f1.4.
Have to confess i was very impressed by it considering it was my first time using it in anger in challenging conditions.
But and there always seems to be a but....

When shooting in landscape position all was well; performing great etc until i turned the camera round into portrait position and the camera just seemed to give up and shoot around 1 or 2 fps.
I was completely baffled by this and still am. I can find no setting that should affect this. It was the most bizarre experience i have had with a camera.
Im hoping someone can offer some insight into this really strange anomaly.
 
Surely the first step should be to try without the lens and adapter? I'm not saying that either the lens or adapter are the issue but if you want to get to the bottom of this maybe they should be removed and discounted.
 
Didn't hit the buffer when you changed orientation? Otherwise what Alan suggested.
 
woof woof said:
Surely the first step should be to try without the lens and adapter? I'm not saying that either the lens or adapter are the issue but if you want to get to the bottom of this maybe they should be removed and discounted.
Click to expand...

I probably should have added to the initial thread that it worked great in portrait position when the subjects were relatively static. It was only when i was tracking the action that it happened.
Basically perfect in landscape position whether static or action, perfect in portrait position if subjects were relatively static but useless in portrait position if it was action shots. It was as if it just decided it couldnt be arsed tracking the subjects and gave up.
 
Bigfungun said:
I probably should have added to the initial thread that it worked great in portrait position when the subjects were relatively static. It was only when i was tracking the action that it happened.
Basically perfect in landscape position whether static or action, perfect in portrait position if subjects were relatively static but useless in portrait position if it was action shots. It was as if it just decided it couldnt be arsed tracking the subjects and gave up.
Click to expand...

You can get issues with focusing when the camera may be happier with detail running horizontally or vertically through the point of focus and therefore changing orientation could make focus more or less likely. Certainly I've had occasions when AF wouldn't lock on so I've changed orientation and it would. Could that be the case here?
 
Could be in camera stabilization or, as you say, the tracking.
I was confused as to why my 1dx2 slowed down indoors sometimes but that transpired to be flicker detection and using high iso settings.
 
if the camera is set to a mode where it needs to focus before taking the shot, then if it finds it harder to find focus in a different orientation, then it will be slower at doing a burst- i'm sure if you set to manual focus it would be full fps in either orientation, and if in af mode but the subjects arent moving then it will get focus quickly- maybe you've discovered that the a7iii only tracks correctly in horizontal orientation

i'm sure theres a menu setting for setting af speed vs accuracy
 
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