Michael Winner, interviewed in Millimeter, Feb. 1975, discusses the speed and efficiency of his shooting schedule:

"Another factor in the speed of production is my shooting exclusively on location. I always do, never in a studio. Life is lived in real places, and I shoot in real places." (From Voices of Film Experience, Leyda ed., 510)

Is it true that location can lend speed to production? Roizman disagrees in his interview in Masters of Light and in the very same volume of this magazine! 

"Most people today think you can save a lot of time and money shooting on actual locations... it's become a vogue to get that 'real look,' but there are times when a studio-built set can save you. You can work faster and over many more set-ups per day." 

Earlier in the Winner interview, he claims the ability too shoot more setups per day than most directors. 

Must track down this issue.