The area to the right of the shaded ‘whole’ settings are the 1/3 or third stop numbers.The shaded area contains the ‘Whole’ ISO Speed, ‘Whole’ Shutter Speed, or ‘Whole’ Aperture.The columns are separate, and read up or down, not across from one to another.The list is pretty consistent with most sources of this kind of information. Some camera manufacturers favor a group of settings over others, and sometimes they even disagree with some of their own published literature and camera manuals. Most books and online sources agree on the whole shutter speed settings, and the whole aperture settings (‘F stop’ and ‘aperture’ are used interchangeably), but they often vary on some of the in-between numbers.
I have taken details for the fractional settings, one halves, and especially the one thirds, from many sources. I have used versions of this list for many years, and this is the result of research and refinement. I’ve found that when photographers and students get to know these numbers, at least in part, then there are fewer exposure mistakes. etc? Or, how about the F/ stops: F6.7, F9.5, F19 and so on? The 1/3 (one-third) stops and 1/2 (halves or half) stop settings are hard to locate online. and so on, but what about 1/3, 1/6, 1/10 sec. I often get questions asking, “What are (1/3) one third f-stops?”, “What are these numbers on my Shutter Speed dial?” or “Why are there all these extra F-stops?” “Why do my camera settings look different that in my textbook?” There are many online explanations for 1/2, 1/4 1/8 sec. This is a list of commonly used Whole ISO settings, Whole Shutter Speeds, Whole F stops, and the hard to find in-between settings of third F-stops and half stops (when they are available.)
#F STOP AND ISO FULL#
The Lists – – – Shutter Speeds – F stops – ISO Settings – – – Click for a full sized printable image
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