Is there a brand of imported high end cameras from the early days of liberation called Oleflex? Phonetically, please ask for the exact name and English spelling, thank you!

This is a double lens reflex camera, Germany famous brand. The full name is double lens reflex mirror view reflective viewfinder camera. Single, double, refers to the lens, that is, single lens reflex or double lens reflex. Now we are more familiar with the SLR camera, SLR is a lens, double reverse is two lenses. Dual-lens reflex camera lens in one for framing, one for imaging, the lens generally can not be replaced.

The exact Chinese translation is RolleiFlex, and the English name is RolleiFlex.