Fotodiox Pro 交換用カメラボディキャップ - Lマウントアライアンス対応カメラ対応

I've had cheap caps before that wobbled, but this one snaps on with a clean, solid click and the fit is essentially flush against the camera. It's a small thing, but the extra confidence knowing the mount is sealed against dust and light knocks is worth it.

The fit on my L-mount body is reassuringly tight, so I’m confident the sensor’s shielded from dust when I swap lenses outdoors. The machining feels precise and the cap snaps on without any wobble, exactly what you want for something this small.

Fits my Sigma FP perfectly and clicks on with a reassuringly solid feel. The only tiny issue is that it's a little snug to remove at first, but it's staying put securely.