Great product, works well with my Sony 12-24mm lens.

As someone who had been with Canon for years, switching to Sony has its perks. I tried looking for third party lens caps and none of them is as cheap as the Sony's (and I don't imagine the quality being as great), which is much to my surprise because to get original Canon lens caps it would be at least $20 each.

I ordered the 52mm filter because the 30mm f1.4 sigma lens for sony e-mount cameras has a 52mm thread but after lens arrived, I couldn't fit it on.But after-service support was pretty helpful in telling me this

I do not use these for the UV filter but as a good quality, low cost lens protector. That said:My 1st Tiffen was a 55mm UV Protector I got for the kit lens that came with a Sony a7ii; an FE 28-70. I was so happy with the purchase that I have since purchased three additional Tiffen UV Protection Filters. One is on a Sony E 55-210 I bought used and one is on a Samyang 35mm I bought new. The one I am writing this review for I assume is still on the Sony FE 50mm I bought new but returned and forgot to remove the filter.The point? I treat my lenses, new or used, like I treat a cell phone. That being the phone stays in the box until I have a protective case for them and lenses stay in the box until I have a protective filter to pair them with. And the one I forgot to remove from the returned lens? That is how confident in the Tiffen filters I am. Once I put one on a lens, I never need to think about it again.I have used several brands in several sizes ranging from the cheaper Altura and Polaroid to the mid range Hoya and B & W.Where does Tiffen fit? Well they are no Hoya or B & W but I am no professional photographer. I am an amateur who mostly enjoys street photography when I travel and for my money Tiffen is the best. Yes, you can spend more and get better glass and if you really have reason to worry about ghosting you should look for a higher end lens. That isn't me saying ghosting has been a problem for me. I normally use a lens hood and I think that helps cut down on light reflection. I have noticed some minor issues with it on some shots I have taken in direct bright light conditions but not enough to justify the higher price.I do not stack filters as I haven't had a need to so I can not give an opinion on that topic. I would assume that the risk of ghosting would increase.The short version is this. The Tiffen UV Protection Filter is well made with good quality glass and a metal ring with threading I do not worry will cross thread or strip. They do what I need by protecting my lens. If I was buying a ND or polarizers I might buy a more costly brand but for everyday protection, Tiffen is all I need and the best for my money.Tiffen say it best in their own product description; A small price to pay to protect your investment.

This sound insulation were easy to install but for the sound test I haven't get that far yet.Ken

I have Sony and Canon cameras. This pinch cap is so much better than the Canon caps I was using. I'm actually using this on a Canon lens. It doesn't matter to me what the front says, it works so much better. It's hard to find inexpensive quality products. If Amz sells more of these Sony caps at this price in different sizes then I'll be purchasing more for sure. The cap comes packed in Sony packaging along with paperwork. I didn't even look at it. Maybe it was information on how to use a lens cap. Either way, this is an excellent product I highly recommend for any lens that needs a lens cap.

It is light in weight. I use it to protect my Sony lens.

Everyone will tell you that after your kit lens this needs to be your first lens. This is true, but even as an experienced photographer I am always happy to get the latest iteration of this lens. Fortunately, this is the best version of the lens today. Build quality, design, and optics are all top notch. I'm aware of the prices on the 1.4 and the 1.2 but the outstanding value of this lens balanced with the overall quality is what keeps me coming back. Also, the weight of this lens is another plus. I've recently switched to the Sony and Fuji ecosystem, but I am keeping this glass and adapting it to those bodies. While I love the features of my Sony camera body I still do think that Canon has some of the best glass available and this 50mm is right up there with the best of them. You won't find one bad thing about this lens if you ask me. I plan on keeping it forever.