Can SLR shoot a circular background with a folding lens?

Turning back is an alternative, and the success rate of film production is very low, and few people buy it.

Especially the low-quality turn-back, it is simply a weapon to take garbage photos.

Unfortunately, Kengo turned around, that's all.

After playing photography for so long, I saw 1 Minolta's return, but Kengo's has never seen it.