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Archive 2018 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!

  
 
wilxzh8
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p.5 #1 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!


joonrhee wrote:
I talked to Sony Support and confirmed that this is abnormal. They asked to send it for repair so it will be going back to Sony today. Thanks all.


Interesting! I asked 3 months ago and the QA technician I talked to said it was completely normal. When did you ask and what department were you talking with?



Mar 03, 2020 at 12:56 PM
Fred Miranda
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p.5 #2 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!


This is not related to AF noise (motor) noise. I think what the OP is referring to is related to aperture blade noise only.

If you set "Aperture Drive in AF" to "Silent Priority", there won't be any aperture blade sound because the camera will focus at working aperture. (So, if the FE 24/1.4 GM's aperture is set to f/4, the lens will focus at f/4)

However, if it's set to "Focus Priority" or "Standard" we should hear noise from the aperture blades opening and closing. This happens because the lens opens the aperture to focus and than closes back to the working aperture before picture a taking (this makes a noise). I'd say it's normal operation.



Mar 03, 2020 at 01:09 PM
joonrhee
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p.5 #3 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!


wilxzh8 wrote:
Interesting! I asked 3 months ago and the QA technician I talked to said it was completely normal. When did you ask and what department were you talking with?


I called twice to 888-222-7669 (in warranty repair) and 877-591-7669 (Sony Service and Support). I talked to the rep and he put me on hold to check with his technicians, and then he returned back to me saying it was not normal to behave like that. I explained to him that the aperture blades were closing and opening while half-pressing the shutter (only when set to f2.2 to f16), and was making a sound while doing that. A work order was created and was told to send it in for repair.



Mar 03, 2020 at 01:10 PM
joonrhee
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p.5 #4 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!


Fred Miranda wrote:
This is not related to AF noise (motor) noise. I think what the OP is referring to is related to aperture blade noise only.

If you set "Aperture Drive in AF" to "Silent Priority", there won't be any aperture blade sound because the camera will focus using the working aperture.
However, if it's set to "Focus Priority" or "Standard" we should hear aperture blade noise when auto-focusing with the lens stopped down. This happens because the lens opens the aperture to focus and than closes to the working aperture before picture taking (this makes a noise). I'd say it's normal
...Show more

You are right Fred. Mine is not the AF motor noise. It is definitely the sound from closing and opening of the aperture blades. Unfortunately I am only using a7RII so don't have the silent priority option..



Mar 03, 2020 at 01:12 PM
wilxzh8
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p.5 #5 · Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!


joonrhee wrote:
I called twice to 888-222-7669 (in warranty repair) and 877-591-7669 (Sony Service and Support). I talked to the rep and he put me on hold to check with his technicians, and then he returned back to me saying it was not normal to behave like that. I explained to him that the aperture blades were closing and opening while half-pressing the shutter (only when set to f2.2 to f16), and was making a sound while doing that. A work order was created and was told to send it in for repair.


Looks like I'll have to call again! Mine is definitely the blades as well.



Mar 03, 2020 at 01:31 PM
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