Scott Eyre Photography

As I was getting sorted out in the photography world, one thing came up over and over again, F-Stops. Once, when taking a class in college, a professor popped the question "Scott! How many full f-stops between f4 and f11? Luckily I knew the answer, (3) but it wasn't something that came right off the top of my head. So here I have compiled a chart, laying out full, half and one third f-stops. I expect any regular user of an SLR camera to recognize these numbers, but knowing how many numbers to increase or decrease to make a full stop, is never a bad thing. Enjoy!

F-Stop Cheat Sheet
Full	1/2	1/3
2.8	2.8	2.8
		3.2
	3.3
		3.5
4	4	4
		4.5
	4.8
		5
5.6	5.6	5.6
		6.3
	6.7
		7.1
8	8	8
		9
	9.5
		10
11	11	11
		13
	13
		14
16	16	16
		18
	19
		20
22	22	22

Full	1/2	1/3
2.8	2.8	2.8
		3.2
	3.3
		3.5
4	4	4
		4.5
	4.8
		5
5.6	5.6	5.6
		6.3
	6.7
		7.1
8	8	8
		9
	9.5
		10
11	11	11
		13
	13
		14
16	16	16
		18
	19
		20
22	22	22

Full	1/2	1/3
2.8	2.8	2.8
		3.2
	3.3
		3.5
4	4	4
		4.5
	4.8
		5
5.6	5.6	5.6
		6.3
	6.7
		7.1
8	8	8
		9
	9.5
		10
11	11	11
		13
	13
		14
16	16	16
		18
	19
		20
22	22	22

F-Stop Cheat Sheet

Full	1/2	1/3
2.8	2.8	2.8
		3.2
	3.3
		3.5
4	4	4
		4.5
	4.8
		5
5.6	5.6	5.6
		6.3
	6.7
		7.1
8	8	8
		9
	9.5
		10
11	11	11
		13
	13
		14
16	16	16
		18
	19
		20
22	22	22