The SIGMA 16mm F1.4 DC DN lens has a 67mm filter size and is a high-performance prime lens compatible with the Sony E-mount. I have used it a few times with a SONY a6400. The lens hood is a little dirty, but it's in good condition as it hasn't been used much. I recently had it appraised at Camera Kitamura, and it received a B rating, with no dust, debris, or mold. It will be sold with the lens protector attached. Thank you. - Brand: SIGMA - Model Name: 16mm F1.4 DC DN - Filter Size: 67mm - Mount Type: Sony E-mount Thank you for viewing.