Bibliography Details

Billydee. Online forum posting. Cloudy Nights, November 16, 2017. https://www.cloudynights.com/topic/598740-fast-focus-questar/?p=8218101.

The following is a complete listing of all citations using this source:

§ 4.1. New Offerings for Photographers and Cinematographers

• Citation No. 1

Timeline

• Citation No. 2