Holga Lens with SLF Turret for Canon EF brand_Calumet Lens has smooth focus and

Lens has smooth focus and aperture movement

so if you need to hold up a big camera

It's a Polaroid

It's not fast focusing

is a telephoto zoom lens for Micro Four Thirds that provides a whole lot of magnification- the full-frame equivalent of 600mm- in a lens that's only 14cm long

Holga Lens with SLF Turret for Canon EF brand_Calumet Lens has smooth focus andThis awkwardly named device is a Holga DSLR lens with its focusing mechanism removed and a frankly kind of sweet special effects filter system attached instead. The "SLF turret" accepts two special effects wheels (included) which include a range of colour and prismatic effects. You rotate the wheel to slide a new filter effect over the end of the lens, and you can swap them in seconds with a clever magnetic attachment system. It's a lot more slick