Nikon Series E 28mm f2.8 swing lens and we've already established that

and we've already established that it's not a fish

The Lowepro Mini Trekker looks like a classic school backpack

Please note: this is an "E" type lens

It has a rangefinder coupled 7

but for something that looks like an instant-film Bessa III

Nikon Series E 28mm f2.8 swing lens and we've already established thatThe Nikon Series E 28mm f2. 8 is a very compact wide angle lens for Nikon F mount. Series E lenses are Nikon's "cheaper" manual focus lenses, usually with older designs this one's based on the pre AI 28mm and more lightweight construction. Not a bad little lens, though! Light dust, smooth focusing, excellent cosmetic condition.