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Trouble focusing on the left side when I use the 25mm ...
407 13 2018-2-26
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Drone Cuiabá
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Inspire 2 - 100% Updated 02/26/2018

I'm having trouble focusing on the left side when I use the 25mm lens. It is most noticeable when using an aperture smaller than f/4 (focus on infinity).

This problem is being reported by multiple clients. Does DJI have anything to say about this?

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2018-2-26
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epicjib
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Yes I have had the same issues with the 25mm. One lens I had was soft left side but this was a lens issue. I replaced it with another lens and I still have this issue but it is intermittent. I tend to focus on the left side of screen and it may take multiple attempts to get it right.
2018-2-26
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fansa84fe8a4
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epicjib Posted at 2018-2-26 08:07
Yes I have had the same issues with the 25mm. One lens I had was soft left side but this was a lens issue. I replaced it with another lens and I still have this issue but it is intermittent. I tend to focus on the left side of screen and it may take multiple attempts to get it right.

If it is soft one one side with a couple of lenses, it is probably a bad alignment of the sensor to the mounting plate.  Just not parallel.

DJI has been know to have sensor tilt issues with their cameras.  I've had two of their drone cameras with sensor tilt matters.  I read where one guy had to shim the bayonet on one side with some 0.005" shim to get it to be evenly focused.  The regular camera manufactures only allow for a 0.001" tilt maximum, but 0.005" is a bit much, imho.

Good luck!

2018-2-26
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Drone Cuiabá
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If it is a sensor misalignment problem, why is it only visible at 25mm?

I sent my drone in October 2017 for DJI to fix a red pixel problem and I quoted this focus problem. They have not fixed this focus problem!

What is DJI's answer ?!
2018-2-26
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DJI Mindy
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Drone Cuiabá Posted at 2018-2-26 17:07
If it is a sensor misalignment problem, why is it only visible at 25mm?

I sent my drone in October 2017 for DJI to fix a red pixel problem and I quoted this focus problem. They have not fixed this focus problem!

Hi there, sorry for the difficulties you are experiencing now, does the issue only happen to 25mm? How about its stock lens? When did the issue happen? After firmware update or with no reason?
2018-3-4
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Drone Cuiabá
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DJI Mindy Posted at 2018-3-4 00:54
Hi there, sorry for the difficulties you are experiencing now, does the issue only happen to 25mm? How about its stock lens? When did the issue happen? After firmware update or with no reason?

Only in 25mm.

I've always had this problem with 25mm regardless of which version of firmware you are using.

But you know I'm not an isolated case, right? MANY people complain about this problem.
2018-3-4
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Matthew Dobrski
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Drone Cuiabá Posted at 2018-3-4 17:45
Only in 25mm.

I've always had this problem with 25mm regardless of which version of firmware you are using.

Cuiaba, would you kindly provide links to MANY other complains regarding 25 mm lens focusing issue?
I'm guilty of belonging to just a few lucky ones which doesn't have any problem with Oly 25 mm lens on Inspire camera, but it may happen anytime now. Apparently it's a ticking bomb. Where we can read and learn more about this scandalous issue?
2018-3-4
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Drone Cuiabá
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See the link:

https://inspirepilots.com/thread ... -focus-issue.14708/

Have you ever tested this lens with aperture f2 and focus on infinity?

I've heard someone talking about testing the same lens on a GH5 camera and there was no focus problem.
2018-3-5
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Drone Cuiabá
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Matthew Dobrski Posted at 2018-3-4 20:21
Cuiaba, would you kindly provide links to MANY other complains regarding 25 mm lens focusing issue?
I'm guilty of belonging to just a few lucky ones which doesn't have any problem with Oly 25 mm lens on Inspire camera, but it may happen anytime now. Apparently it's a ticking bomb. Where we can read and learn more about this scandalous issue?

More

https://forum.dji.com/forum.php? ... 85&pbc=mF6h4ZTt

https://forum.dji.com/thread-107446-1-1.html?pbc=mF6h4ZTt
2018-3-5
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Drone Cuiabá
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Flight distance : 7170650 ft
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DJI Mindy Posted at 2018-3-4 00:54
Hi there, sorry for the difficulties you are experiencing now, does the issue only happen to 25mm? How about its stock lens? When did the issue happen? After firmware update or with no reason?

Since 2017-8-2 DJI Mindy knows this problem and does not give us an answer about it.

https://forum.dji.com/forum.php? ... 3&fromuid=49159

2018-3-5
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Drone Cuiabá
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Note that in this case the camera was replaced and the problem was solved.

https://forum.dji.com/forum.php? ... 3&fromuid=49159

When I sent my Inspire 2 to correct a problem in the sensor I requested that this problem of focus be solved too! They did not!

2018-3-5
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Drone Cuiabá
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I do not think I'll have to send the camera back to the US and wait three months to get my equipment back. Everything could have been resolved if they had a quality service!
https://forum.dji.com/forum.php?mod=redirect&goto=findpost&ptid=90154&pid=1109296&fromuid=49159
2018-3-5
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DJI Mindy
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Drone Cuiabá Posted at 2018-3-5 07:18
Since 2017-8-2 DJI Mindy knows this problem and does not give us an answer about it.

https://forum.dji.com/forum.php?mod=redirect&goto=findpost&ptid=107446&pid=896593&fromuid=49159

As far as I can remember, I have recommended OP to send the drone in for further evaluation, and I believe the issue has been sorted out by our repair center.
2018-3-7
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Drone Cuiabá
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DJI Mindy Posted at 2018-3-7 06:32
As far as I can remember, I have recommended OP to send the drone in for further evaluation, and I believe the issue has been sorted out by our repair center.

I will not send again! I'd rather have this problem and work openly than f4 than waiting 3 months to get my drone back.

I'm disappointed once again with DJI.
2018-3-7
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