I have been using Canon Macrolite Adapters to affix my Macro Ringlite to my EF 100mm f/2.8L Macro IS lenses. Seeing that my new EF 35mm f/2 IS lens shares the same 67mm filter size as my Macro L lenses, I wondered if the Adapter 67 and Ringlite would work with the wider lens. I suspected vignetting would occur, but in practice, it did not, even on a "full-frame" 5Ds R.
As the 35mm f/2 IS is not packed with a lens hood, and I believe in hoods, rather than filters, for impact, abrasion, and smudge protection, I ordered another Macrolite Adapter 67 to keep, more or less permanently, on my EF 35mm f/2 IS, rather than order the hood that Canon lists for this lens. The Adapter functions well as a short hood!
Of course, the EF 35mm f/2 IS is not a "macro" lens, but it can focus quite closely, and is therefore useful for some close-range photography.
Canon 5Ds R/7D2/7D/5D/40D/1D2N; Nikon F6/D3s/D700/FM3A/Coolpix A. Lens selection undergoing changes; some favorites: Zeiss 2/135 APO Sonnar, Canon 100mm f/2.8L Macro IS and 135L, Nikkor 14-24/2.8G and 200/2 VR.