Sigma Art 18-35mm f1.8 DC for Canon EF flatbed and it includes both the

and it includes both the standard tray and the MS-D10 AA battery tray

This is a Rollei Gelb-mittel (AKA medium yellow) filter for Bay 1 TLR lens fitting

Interior dimensions are approximately 9x20x27cm

though it's less of an absolute lock than a very strong suggestion

Sigma Art 18-35mm f1.8 DC for Canon EF flatbed and it includes both theThe Sigma Art 18 35mm f1. 8 DC is a high quality wide angle zoom lens for Canon EOS digital cameras with APS C format sensors. Sharp and fast focusing, with an impressive f1. 8 constant max aperture. This isn't the smallest or lightest lens in the world, but the image quality and large aperture are definitely worth it. In excellent condition, with original hood and case.