Sony 24mm 1.4 GM QC Issues? -- Or Normal? Please help!
Long-time lurker, first-time poster here. Wanted to ask the insight of owners to assess whether there is a QC issue with the Sony 24mm f1.4 GM lens in regards to autofocus and aperture.
Basically, I've tried a total of 4 lens that have seen variation in the following areas (my latest lens exhibits these characteristics the least but is still there):
1) Aperture grinding sounds. Similar actually to the Sony 55mm 1.8, upon turning on the camera, changing aperture (notably from f1.4 to f2 and then f8 to f16), you can hear a sort of grind or audible movement of the blades rubbing on each other.
2) Autofocus Motor thudding: Especially in low-light and low-contrast fields, but still in decent light as well, in AF-C and AF-S, as the focus changes, you can feel vibrational thuds along the frame of the lens.
I definitely feel that there is variation between the four lenses I've tried as the above traits varied in intensity and wanted to know if others observed the same? Thanks for your help!
Long-time lurker, first-time poster here. Wanted to ask the insight of owners to assess whether there is a QC issue with the Sony 24mm f1.4 GM lens in regards to autofocus and aperture.
Basically, I've tried a total of 4 lens that have seen variation in the following areas (my latest lens exhibits these characteristics the least but is still there):
1) Aperture grinding sounds. Similar actually to the Sony 55mm 1.8, upon turning on the camera, changing aperture (notably from f1.4 to f2 and then f8 to f16), you can hear a sort of grind or audible movement of the blades rubbing on each other.
2) Autofocus Motor thudding: Especially in low-light and low-contrast fields, but still in decent light as well, in AF-C and AF-S, as the focus changes, you can feel vibrational thuds along the frame of the lens.
I definitely feel that there is variation between the four lenses I've tried as the above traits varied in intensity and wanted to know if others observed the same? Thanks for your help!
Long-time lurker, first-time poster here. Wanted to ask the insight of owners to assess whether there is a QC issue with the Sony 24mm f1.4 GM lens in regards to autofocus and aperture.
Basically, I've tried a total of 4 lens that have seen variation in the following areas (my latest lens exhibits these characteristics the least but is still there):
1) Aperture grinding sounds. Similar actually to the Sony 55mm 1.8, upon turning on the camera, changing aperture (notably from f1.4 to f2 and then f8 to f16), you can hear a sort of grind or audible movement of the blades rubbing on each other.
2) Autofocus Motor thudding: Especially in low-light and low-contrast fields, but still in decent light as well, in AF-C and AF-S, as the focus changes, you can feel vibrational thuds along the frame of the lens.
I definitely feel that there is variation between the four lenses I've tried as the above traits varied in intensity and wanted to know if others observed the same? Thanks for your help!
Dec 03, 2018 at 10:31 PM
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