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Focal length data extraction with power zoom lens

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Jun 18, 2021
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Dear Inspire 2 pilots,
I am flying an inspire 2 with a zoom lens (14-42mm) and a handwheel connected to the remote to be able to zoom in and out when recording a video. I would like to access the data about my focal length during the flight, just like we get the altitude data displayed as a subtitle on the video. Is there a way to do this? I tried DJI telemetry overlay, but could not find any focal length option, and the focal length is not given in the SRT files.

Thanks in advance
 
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goldenskybirds.com
I'm using only primes, but when shooting in DNG I can import a single frame in Light Room as photo and there I can see the metadata for focal length, aperture and shutter speed. Not sure what will show on zoom lens. On other hand when I shoot with canon camera and canon 70-200 zoom lens, LR shows at what focal length was the shot taken.
 
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I'm using only primes, but when shooting in DNG I can import a single frame in Light Room as photo and there I can see the metadata for focal length, aperture and shutter speed. Not sure what will show on zoom lens. On other hand when I shoot with canon camera and canon 70-200 zoom lens, LR shows at what focal length was the shot taken.
Thanks for your answer! I am not sure I get you, are you speaking about photos or videos? Is your "single frame" a photo you shot or something extracted from a video you shot? I never shoot photos, only videos... And I guess no metadata can be found in screenshots taken in VLC...
 
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Here is a frame extracted from one of my videos, I tried to extract metadata through exiftools, but just like for the video, no focal length provided...
 

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