High quality optical glass for maximum clarity and vivid picture and UV lens filter absorbs ultra violet rays without an increase in exposure to provide a clearer picture as well as protection for your valuable lens. A cameras UV lens filter serves to protect your lens from all dust, dirt, scratches and fingerprints. The camera lens filter also absorbs the ultraviolet rays of the sun thereby reducing or eliminating distortion. These digital cameras filters are used to alter the properties of light as it enters a camera's lens. This process is meant to improve the quality of the image as it is recorded by altering things like the color, contrast and sharpness of an image. The ultraviolet-blocking filter effectively reduces or eliminates photographic haze in areas where the atmospheric conditions contain a heavy concentration of dust particles, water droplets, and pollution. The 30.5mm UV lens filter filters out ultraviolet light enables the capture of vivid colors and sharper detail.
Other Thoughts:This is a nice protective filter. It's not really a filter it's to protect your main lens. Very clear, I can't see any difference in image quality. Screws right on to my fz100 lens and I can still put my lens cap on. I would definitely buy this again.
Other Thoughts:This is just your basic protective filter. It is not multicoated but you can also wash it, wipe it with your shirt and do whatever else without damaging it. I will not de-rate it because "oh, it is not as good as a Hoya Digital" because, well, it isn't and it is not priced as such either. You get a decent protective filter for fifteen bucks, if you need multicoating - buy a different filter.
<br/>I use it in place of a lens cap and will remove it on occasion, shooting into the sun, to reduce glare. In 90% of what I photograph, it is not noticeable. I also read that Tiffens are pretty tough mechanically but I did not yet have a chance to find out.
<br/>The threaded ring holding the glass can unthread a bit with use. Just tighten it with a pointed object if it does.
Other Thoughts:I have this on my Lumix FZ35. For those of you who are not sure how it fits on, it screws into the threads on the inner lens barrel. I took two identical shots inside at full zoom and noticed a slight difference in brightness which is expected. At the lower zoom levels, it is very difficult to see a difference. This is really beneficial outdoors but if you are like me, you want something you can just leave on there to prevent dust from getting inside. You can't go wrong with this especially for the asking price.
Other Thoughts:i'm a hobbiest mostly photographing my kids. the filter was strongly recommended for protection of the lens and it's great (especially with the kids wanting to use the camera too!). i've been very pleased with it so far but i don't have the eye to tell if there is any distortion or artifacts from using it. it does what i wanted it to do (protect the lens) and was a very reasonable price.