Active Track with ND Filter?

[wolfmad]

Just wondering if having- say - an nd 8 or nd16 Filter over the lens would degrade or anyway hamper the performance- range-accuracy- of the Active Track feature
? Limiting the amount of detail-light getting to the processor??

 

[doccy]

Just wondering if having- say - an nd 8 or nd16 Filter over the lens would degrade or anyway hamper the performance- range-accuracy- of the Active Track feature
? Limiting the amount of detail-light getting to the processor??

You are only limiting the light to adjust your shutter speed. your exposure will be the same so no.

Unless you use the thing on wrong (have a strong filter on at dusk for example and don't or can't adjust ISO to compensate - but that would be stupid.

 

[doccy]

No. The Mavic uses its front sensors to track objects when flying in ActiveTrack mode.

Are you saying this from a position of knowledge?

It sounds highly unlikely. It is far more obvious that the camera is tracking you much the same as modern mirrorless cameras use active focus tracking to follow objects - this is by analysing the video data feed and trying to trace the object as it moves around through clever processing.

One clue here is that when you hit active track and it is dark... it immediately boosts the ISO or reduces the frame rate of the Mavic camera so it can 'see' you better. This would not be necessary if it was using the forward sensors to 'see' you.

You are mixing up how active track works to follow someone (the OP's post) with the fact that forward obstacle avoidance using sensors works in some modes (in profile mode it turns them off altogether).

 

[doccy]

The target tracking is 100% software-based -- where DJI GO is following the target by analyzing the image that is displayed in DJI GO. If the image is too dark on the screen in DJI GO (even when using no filters) or it's too dark in the flying area, the target will not be found. It does a pretty good job of finding the target even when the exposure is not set properly. For that reason, I don't think using filters is going to negatively impact this feature. The OP might have a problem if doing something odd like using an ND64 filter after the sun has set. That shouldn't be a likely scenario for most people though.


Right -- the front sensors are only going to be used to avoid the subject.

Umm -- thanks for repeating what i said.

You shouldn't have deleted your post with the incorrect advice - it just makes the thread confusing. Anyone can make a mistake.