MarcoR
lvl.4
Flight distance : 316335 ft
Italy
Offline
|
Diceman Posted at 10-20 17:22
In comparing the test shots I linked with my phone camera and gopro 9,10,11 shots online done in the same manner, its obvious its out of focus.
Imho we cannot compare the smartphone cameras with those of the action cameras, since one has an electronic focusing system, the other does not.
According to industry experts the lens group is usually outsourced, maybe in this case DJI produced them.
The lenses are almost always made of plastic, glass is hardly used.
During the prototyping phase constant tests are carried out to find the right compromise between the chosen lenses and the sensor, which according to lens manufacturers is always less performing than optics.
It is not an empirical process but tremendously sophisticated.
Once the objective has been achieved we go into final prototyping, if all goes well then it goes into production.
Given the dimensions involved, making a small mistake in the lens production process is absolutely plausible, and when no motorization has been designed in that group it is then impossible to have an optimal focus even in full sensor shooting.
When it comes to ultra-wide FOV the tolerances are even smaller.
From what DJI told me his action camera has no focus defects but it fits in with what they had chosen.
We are not here to discuss whether this is true or false, personally I believe that in a production process something has gone wrong, perhaps in outsourcing, because what my eyes see is not an acceptable result from a leading company like DJI.
I opened this post in this spirit, not to denigrate DJI but to publicly say that as far as I'm concerned that is not the result I would have expected, and to try to understand if it was just my paranoia.
After having had proof that so many others have highlighted this problem, I believe it is not group hysteria.
The Earth is not flat, but the OA3 is out of focus.
Everyone is free to think as they want, but that's the way it is for me.
Anyone who thinks otherwise I read it with great interest if you provide me with tangible proofs that I am taking a mistake.
At the moment I have only read words, I have not seen tests done by those who claim that I am wrong.
No one has provided tangible evidence that anyone who believes is out of focus is wrong.
I'm still waiting for this proof, without being words will remain in the wind.
I remember in the past when we reported a problem to the flight control "DJI Wookong-M", it would randomly flip and crash the copters.
Initially we looked like crazy, then DJI admitted the mistake: a GPS connector with a false contact, manufacturing defect.
We are human, everyone can make mistakes, me, you and even DJI.
The important thing is that all this leads to improvements.
Peace and love. |
-
The lens group of a smartphone, sliced
|