nikon - Help me find a lens with peculiar bokeh - Photography Stack Exchange
Soapbubble Bubble bokeh and floral abstracts photographed with Meyer Optik Gorlitz Trioplan 100/2.8 II lens Stock Photo - Alamy
The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8 – FUJILOVE MAGAZINE
Various cheap alternatives to Trioplan; lenses producing soap bubble bokeh on Nikon D800 and Sony A7: Adapted Lens Talk Forum: Digital Photography Review
Trioplan f2.8/100 Returns Artistic Soap Bubble Bokeh to Photographers after 45 Years - Meyer-Optik-Görlitz