The Seibold Dreamagon is a very rare and unusual soft focus lens with a radial fan aperture mechanism surrounding a sharp f/11 central spot. Closed down to f/11 it's a super-sharp 90mm focusing close. Opened up to f/4 (with depth of field similar to an f/2.8) is creates a dreamy glow with small fans of light from defocused point sources. It can also produce 'fanbursts' instead of starbursts, as shown in the picture we created for a Christmas card, shooting our town's festive lights at night with this lens and dropping the result into the background of a studio shot of our young cat.
The lens has a front cap, and a rear Canon EF T-mount but since it uses T-mounts can be adapted to any DSLR, SLR or mirrorless camera. It's in excellent condition but has no box or instructions.
A collector's item, custom made in Germany, hard to find and also a user item for special effects especially with video. Manual aperture, manual focus. Example usually sell in the range $400-500/€400-500, so I'm pricing this at £290.