First off, there's a review with 1 start saying ( Not for professional use ) - I think that's an irresponsible opinion, without any room for subjectiveness. Since the definition of a professional really is nothing more than someone who is being paid for their work, you can't just say not for professional use, when there are many types of looks in demand by clients looking for exactly what these produce. I'd say these are definitely lenses for professionals in the right situation.Quick mentiontions (tough body and mounts, strong gears, very controlled flaring, and ultra light).I am not saying these are the best tools for every job, and I agree that there are some issues regarding the lenses distortion - which are easily noticeable in review videos (evidently the ... MoreFirst off, there's a review with 1 start saying ( Not for professional use ) - I think that's an irresponsible opinion, without any room for subjectiveness. Since the definition of a professional really is nothing more than someone who is being paid for their work, you can't just say not for professional use, when there are many types of looks in demand by clients looking for exactly what these produce. I'd say these are definitely lenses for professionals in the right situation.Quick mentiontions (tough body and mounts, strong gears, very controlled flaring, and ultra light).I am not saying these are the best tools for every job, and I agree that there are some issues regarding the lenses distortion - which are easily noticeable in review videos (evidently the other person didn't study before buying), which for me, has all be quickly addressable in an editor with limited adjustments if I decided to correct it.However, I have already had a few clients, including my own personal work, where the look and feel these lenses with the distortion they create is preferred, it added a feel to the image, it was the deciding factor to use these for the productions actually (feature films), it added a driving mood that complimented the narrative - so when I say they are a tool, I am simply saying - understand what your tools have to offer, and you will know if they are the right ones for the jobs, and in those cases, these lenses are phenomenal. They are a little too sharp for my typical feel, but I slapped a custom made filter in my matte box, and they have become the perfect look for my film making aesthetic.Study these lenses on YouTube, understand their strengths and weaknesses, and make sure those strengths align with your objective - if they do, BUY THESE - I love mine.

I am truly amazed by the images these lenses can produce for the price and size! If you are looking for lenses that don't look sterile and have some character to them without having to sell all your possessions to afford them, then these are absolutely the lenses for you!

I'm sure it was a manufacturer error, but I would like a discount/gift card or a change of lens. I use this in a rental house and I'm sure some clients are gonna have an issue with it eventually. Other than that, great lens.