In camera filmlook

Tom Hardwick · February 9th, 2008, 06:15 AM

Back to your photography classes Adam. The larger the f-stop, the *shorter* the depth of field.

The only thing missing from Allan's list (which he covers by talking about focal lengths) is to insist that if you want limited dof go for the biggest chips (or film gate) available.

tom.

Philippe Simon · February 11th, 2008, 12:17 AM

WIKIPEDIA (depth of field):

"For a given subject framing, the DOF is controlled by the lens f-number. Increasing the f-number (reducing the aperture diameter) increases the DOF."

Tom Hardwick · February 11th, 2008, 03:03 AM

Ah, language at play here. When I said 'larger the f stop' I was talking about the diameter of the aperture. Philippe's use of 'Increasing the f-number' refers to the higher numbers associated with smaller apertures, f/11 as against f/4, say. Sorry for the misunderstanding.

tom.

February 9th, 2008, 06:15 AM	#16
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	Back to your photography classes Adam. The larger the f-stop, the shorter the depth of field. The only thing missing from Allan's list (which he covers by talking about focal lengths) is to insist that if you want limited dof go for the biggest chips (or film gate) available. tom.

February 11th, 2008, 12:17 AM	#17
Philippe Simon New Boot Join Date: Sep 2004 Location: Houtkerke/Fransvlaanderen/France Posts: 13	WIKIPEDIA (depth of field): "For a given subject framing, the DOF is controlled by the lens f-number. Increasing the f-number (reducing the aperture diameter) increases the DOF."

February 11th, 2008, 03:03 AM	#18
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	Ah, language at play here. When I said 'larger the f stop' I was talking about the diameter of the aperture. Philippe's use of 'Increasing the f-number' refers to the higher numbers associated with smaller apertures, f/11 as against f/4, say. Sorry for the misunderstanding. tom.