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Has anyone tried adding a filter holder to lens adapters?

Started Dec 31, 2018 | Questions thread
robgendreau Forum Pro • Posts: 10,922
Re: No, but trivial to do with 3D printing

petrochemist wrote:

robgendreau wrote:

To resurrect this old thread I'd note that I've been trying to fit filters into some PK to M43 adapters; there's considerable room inside, even a bit of a "shelf." A 37mm glass filter popped in nicely. It worked with one lens, a 35mm, and an adapter that could go past infinity (I'm mostly using this for landscape, so I need infinity). Using the adapter/filter with an 8mm fisheye and a 16mm was a bust though.

Going to try a gel instead. Should I just mate it to a piece of plastic or something to hold it in, and what glue would work with a gel? I don't have much experience with them.

BTW, this is for IR. Not a lot of options for fisheye other than rear filters, like some of the UWA Irix lenses come with.

Fisheye lenses for IR is the main reason of my interest. I remember seeing some examples years ago on a now defunct IR forum, taken using gels on the back of a fisheye. (I think it would have been on a DSLR, but I'm not sure.

Not yet got round to trying it myself - too many other projects.

Normal filters are certainly limited with fisheyes, possible with a 9mm BCL but as that only has a 140° FOV it's not what most people think of as a fisheye. With a typical fisheye you end up with results more like this: https://flic.kr/p/RENkBq IIRC that was with the filter touching the lens!

Yeah, I saw this video and wanted to do something similar, but on my lens the rear element protrudes just a tad, so I couldn't use the lens itself, hence thinking of using the adapter instead. https://youtu.be/WjfTFYMPzKs

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