Hua Zhong Twin lens camera

The Hua Zhong is a Chinese TLR camera that is similar to the Seagull 4B and was made in Central China from the 60's to the 80's. 

It shoots 120 film in either 6x6 or 6x4.5 format with a removable mask. Film advance is simple knob and red window with windows for both formats. The taking lens and the viewing lens are both marked Hua Zhong 1:3.5 75mm SFJ-3. The shutter is labeled chinese script and has a speed range 1 - 1/300 and B.

The aperture range is f/3.5 to f/32. The shutter is cocked manually using the lever on the right front. The finder screen is plain without any special focusing aids but has central cross line composition lines and 6x4.5 framing lines. It has a built-in action finder and a critical focusing magnifier.