Great webcam. Excellent looks. The thing that holds ito on the Laptop/Monitor seems to be too large for no reason. I would've made it smaller from a better material, for the price that it is being sold they should've "gone the extra mile".Carl Zeiss optics are supposedly what makes a difference.However the lens is the same size as all the regular webcams.I would've thought that Zeiss optics would use a larger and brighted high index lenses that they are known for, to allow more light to get in and improve image quality as additional benefit.Not so. Well the lens does seem to let more light through then the plastics.but most of the improvements seems to come from post processing of the captured image(this is a speculation at this point, I have not done any professional testing to verify my inference).

A good value telescope. The optical, while no one would mistake any of it as having come from Carl Zeiss, is surprisingly capable and provides satisfactory acuity. Distortions are kept at a low level for such a budget product. Since we paid only $46.75 for ours as a 'lightening deal,' we have been pleasantly surprised by the internals.What is not satisfactory is that which everyone else who has reviewed here has already mentioned: the tripod. Essentially, if you want to have a steady view of anything other than the Moon, you need to replace this tripod, as the telescope simply does not sufficiently stabilize with it. I have used the tripod at a 'knee-down' height in order to minimize the wobble but been unsuccessful in controlling it.

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

Can't believe I got this for.99 cent!! It works perfectly and I love interacting with my Alexa!

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.

Have had my previous ones for.10 years so was afraid to.purchase. these are better than the first

you get what you paid for. It's not a product like B&W.Wonderful for sony zeiss 55 1.8. I touched the glassed in the lens and made some scratch and then decide to get this one. This filter can really protect the lens from unintentional touch.

Isn't the Carl Zeiss optics lens as advertised but it;s a much clearer picture now so... I got that going for me, which is nice.