Sony VF-405MP Multi-Coat Protector
Sony has an excellent reputation for their lenses, and their filters tend to follow in those big footsteps as well. Their Multi-Coat Protection filters feature the high quality Carl Zeiss design, while still available at a reasonable price. The multiple coatings prevent reflection and ghosting while the low profile keeps vignetting at bay. Sturdy enough to protect the lens from dust, scratches and moisture, it's constructed with aluminum and glass. These filters will protect your expensive lenses, but don't deliver a big sticker shock.