I used this filter once after purchasing it, but I'm selling it because I received another soft filter. I also have a light pollution cut filter, and it's quite convenient. Especially with soft filters, stars tend to stretch when placed on the front of the lens, so it's better to have them behind the lens. It's almost new, but one of the anti-rattle mats is missing. It can still be used without it, and there's one more mat included. It's compatible with Sony a7 and a9 series cameras. Even if the ProSofton filter is revived, I think it would be quite expensive and large for everyone. If you're interested, please take this opportunity. "KASE | Kase CLIP-IN Dream Soft Focus Filter for SONY α Series" Freedom Model Number: CLIP-IN #freedom #CLIP-IN #Smartphone/Cameras/Electronics #Camera #Filter #a7 #a9