Based on the single-focal-length BF 35 camera, this is an advanced model with 3-step autofocusing with one center point and a near-infrared beam. Shutter Electromagnetic four-speed programmed shutter and aperture. With flash off: No higher than EV 10.5 (f/4.5 at 1/70 sec.). At ISO 100: EV 10.5 – EV 12 (f/4.5 at 1/100 sec.), EV 12 – 14 (f/6.6 at 1/125 sec.), EV 14 – EV 16 (f/11 at 1/180 sec.). Built-in electronic self-timer (with blinking red-eye reduction lamp), cancelable midway.Viewfinder Reversed Galilean viewfinder. 0.68x magnification and 84% coverage. OK-to-Shoot lamp on the right (also functions as in-focus indicator). EE CdS cell for full-auto simple program EE. Film speeds of ISO 100/200 and 400 (automatic switching) with DX code. Built-in Flash Guide No. 9 (at ISO 100 in meters). Fires automatically in low-light conditions. Flash off/on switch provided. Autodate Feature Auto calendar programmed up to the year 2030. (Automatic correction for leap months and years.) Power Source Two 1.5 V size-AA batteries