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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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(Digital) photography, F-stops and polarisers

Posted by jpluimers on 2025/03/24

My filter removal tool broke, so while I had new ones on order, I had to figure out how many F-stops I would need to compensate for especially because I would be shooting during the evening.

Here are some links that gave me an impression:

Don’t you love the accessibility (a11y) awareness of people that put tables as images on their web-pages? The last link above did (see the image on the right below), I don’t: I love plain HTML with plain old rules and left-alignment content when it makes things more readable, so I converted it into a plain HTML table (:

Full stops f/2 stops f/3 stop
f/1.0 f/1.0 f/1.0
f/1.1
f/1.2 f/1.2
f/1.4 f/1.4 f/1.4
f/1.6
f/1.7
f/1.8
f/2 f/2 f/2
f/2.2
f/2.4
f/2.5
f/2.8 f/2.8 f/2.8
f/3.2
f/3.3
f/3.5
f/4 f/4 f/4
f/4.5
f/4.8
f/5
f/5.6 f/5.6 f/5.6
f/6.3
f/6.7
f/7.1
f/8 f/8 f/8
f/9
f/9.5
f/10
f/11 f/11 f/11
f/13 f/13
f/14
f/16 f/16 f/16
f/18
f/1
f/20
f/22 f/22 f/22
f/25
f/2
f/29
f/32 f/32 f/32
f/36
/38
f/40
f/45 f/45 f/45
f/51
f/54
f/57
f/64 f/64 f/64

These tables aren’t hard to create as f-number – Wikipedia f/N all have N equal to powers of the square root of 2 truncated down to 1 digit after the decimal dot when N < 10, or to integers when N >= 10. Similar for shutter speeds (see Shutter speed – Wikipedia) and ISO numbers (see Film speed – Wikipedia) but at large numbers rounded to multiples of 1000, 2000 or 5000.

On the to-do list do the same for the images in these pages (typo and lack of low ISO values theirs):

[Wayback/Archive] Shutter Speed Chart – Photography 101 [Wayback/Archive] Photography ISO Chart

Queries:

--jeroen

This entry was posted on 2025/03/24 at 18:00 and is filed under About, LifeHacker, Personal, Photography, Power User. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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