The leather case well and acts originating mainly dibasic. The leather and the workmanship is flawless. The rear of the pocket is screwed via screw in the lens mount and the front part is attached by push button. Unfortunately, the rear door is a tad too long. This tightens the leather when the bag is closed. That's why there's only 4 star! In addition, it would have been desirable, would be the front of the bag still attached after removing the strap. So the challenge of the bag falls a worst case in his lap. I'm still going to additionally use the lens cap as passes and traveling in the bag despite bag or dust and dirt on the lens.