English to Russian Tech/Engineering Photography/Imaging (& Graphic Arts)

Both cameras offer Aperture-priority Auto mode to let photographers benefit from aperture control in 1/3EV steps, so they can select large apertures for attractive background blurring or stop down to small apertures to extend crisp focus into the distance – all while the camera automatically selects the most appropriate shutter speed for optimized exposure.
Заранее спасибо.