Filter Holders for Ultra-Wide-Angle Lenses

Filtering ultra-wide-angle lenses, which are generally defined as lenses with diagonal angles of view of 90° or greater, can be challenging. And the greater the AoV, the more challenging filtering can become. The big problem has to do with vignetting, which in the case of filtering ultra-wide-angle lenses means seeing the edges of the filter in the corners of the frame.

In the case of full-frame cameras, this is seldom an issue with lenses in the 18mm to 21mm range (approximately 90° to 100° AoV) assuming you are using threaded, thin-mount filters. But using lenses with wider AoVs requires wider-girthed filter holders designed specifically for use with ultrawide lenses.

Canon’s EF 8-15mm f/4L Fisheye USM lacks filter threads and has large, fishbowl-like front elements, making it difficult to filter. This is where oversized slip-on filter holder systems come into the picture.

Even though the target audience for this post is primarily users of consumer DSLR and mirrorless cameras, the filter holders, filters, and related accessories discussed here are equally relevant to and compatible with medium and large-format camera lenses.

... Via B&H explora - All posts https://ift.tt/2eTTt8P