The locking system works perfectly and keeps absolutely tight.
Unfortunately, that was about all I like about this camera bag.
The first problem is that the built-in lens cap is made of plastic. This makes it impossible for me with my manual zoom lens (SEL-1855) to adjust the zoom or focus.
Here an area of rubber would have been better. Who uses an electronic zoom or a fixed focal length lens, can ignore this criticism confidently.
The next problem is that the camera can not be fixed in the pocket. If you move it, the lens beats constantly against the lens attachment pocket. In the long term this can only be harmful.
The main problem, and for me the reason why I did not keep, the fact is that in spite of an intervention for the index finger, leaves virtually nothing to control the camera.
I can only turn on and operate the shutter. The finger-engaging slips without moving it on the control wheel. And also by the rear-mounted film adjusting the camera is impossible. Also this reason can be ignored when one operates his camera only in Auto mode, or the talent, she has already set before packing on the right lighting conditions.
I can therefore only 2 stars awarded, as it unfortunately is only an overpriced plastic bag for me.