bigshock

This was what I thought as well, anyway, thanks for the help

Good point, I'm waiting for another 50mm lens to come and see if it's the same

I'll try the way you said, thanks. As for the lens, I didn't hear a click sound, but when I try to twist it, I can feel it's been secured. Then faint 135 frame line starts to display. But like I said, if I twist it clockwise further, it will move a little bit, then the clear 135 frame line shows.

Thanks for the tip, it could be the lens as the camera just had a CLA not too long ago I think

Hello guys, I have an issue with my M3. When I try to mount certain M-mount 50mm lenses, it engages the 50mm and 135mm frame lines both at the same time. This only happens with a TTArtisan 50mm F1.4 I bought. When the lens clicks securely into place, it will engage the 50mm and a faint 135mm frame lines. If I twist it a bit clockwise, then it engages the 50mm and clear 135mm frame lines. I only have this issue because I tried my other lens(Minolta 90mm F4), and the frame line is okay. It clicks securely into place and engages 90mm frame lines all the way. Could this be the TTArtisan lens issue? How do I resolve it Thanks for your help guys. Cheers!