Why am I getting NEX 5n flickering??


Lanzar

Lanzar

Member
Could be due to propelers not being balanced, huge vibrations on s800, and wroge settings on the nex5.
We also have 1 client with the same problem and with all the help i provided he still did not find a solution to the problem. We got dji involved in how to fix this but so far no luck.
I have also read that some pancake lenses cause it. Well post some video so we can compare the results with the other videos.
 

B

Boltzman

Member
Interesting, I have the same problem occasionally.
Specifically in bright sunlight with a shutter of 1/125.
I got rid of it by reducing the shutter to 1/60 but this is not the way forward when you do 1080 60p footage, the shutter should be +2x the frame rate.
Where did you read regarding the pancake lens?
 





R

rickharvey

Member
Boltzman said:
Interesting, I have the same problem occasionally.
Specifically in bright sunlight with a shutter of 1/125.
I got rid of it by reducing the shutter to 1/60 but this is not the way forward when you do 1080 60p footage, the shutter should be +2x the frame rate.
Where did you read regarding the pancake lens?
Click to expand...

Should I be using 1080p or 1080i?
 

R

rickharvey

Member
Lanzar said:
Could be due to propelers not being balanced, huge vibrations on s800, and wroge settings on the nex5.
We also have 1 client with the same problem and with all the help i provided he still did not find a solution to the problem. We got dji involved in how to fix this but so far no luck.
I have also read that some pancake lenses cause it. Well post some video so we can compare the results with the other videos.
Click to expand...

Should I be using 1080p or 1080i?
 

hjls3

hjls3

Member
you might try the manual focus + auto setting. its what I have been using the most. quick and easy. when I first got it I was manually setting everything. Missed a few shots that way and one day I tried the auto and was quite pleased. When I was manually setting things up, I would on occasion get the white flickering. But since I have been using auto - no such flickering. Might be worth a try. If you try it, LMK how it worked for you.

rickharvey said:
Manual focus
1080i 60fs
Apeture priority

It seems to start flickering when I take off...

At low rpms it is fine.
Click to expand...
 


G

ghaynes

Member
more likely is that it is the props casting shadows or throwing glare onto the lens. If you fly away from the sun and don't see it and then fly into the sun or slightly off angle and it shows up then it is sun glare. Try it with a lens hood.
 

F

Fireman77

New Member
Are you guys fix that problem? I got the same damn issue with my Sony Nex5r, please check those videos, each of them in different months:

https://vimeo.com/84016871

My Tarot FY690s has those specs:


AUW w/ 1x 6S 5000mAh Zippy LiPo's: 3950 grams
Tarot FY690S frame
Arris 4010 380KV
Hobbywing 2-6S Platinum-30A-Pro OPTO ESC for Multicopter
DJI NAZA-M V2 Flight Controller
GPS v2
ARRIS ZHAOYUN-COM 2-Axis Brushless Gimbal
Alexmos Board
Sony Nex5r w/16mm f/2.8 Lens
3S 2200mAh 25C for Gimbal
AR8000x Rx
TM1000 telemetry
Spektrum Dx8
12x38 Carbon Fiber Propeller (3 pairs)

The whole hexa was an RTF version from HobbyWing.

Naza v2 Gain set up defaults 4.0 firmware:

Basic:
Pitch 180, Roll 180,Yaw 120,Vertical 120

Atti:
Pitch140,Roll 140

https://www.dropbox.com/s/r444begftzzmg4i/Vibration%20Test%201080p%...
Sony Nex5r 1080p, 60fps, 1/125, f/8.0, ISO 200
With the same Alexmos config, please check the whole screen with vibrations and some kind of flickering, i cant explain why, happens only when i move the hexacopter, not when i hovering or when I am raising the hexa. Is driving me crazy.

Regards.
 

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