Subject | Re: ISO value names are becoming ridiculous |
From | nospam |
Date | 01/09/2016 23:26 (01/09/2016 17:26) |
Message-ID | <090120161726475817%nospam@nospam.invalid> |
Client | |
Newsgroups | rec.photo.digital |
Follows | Sandman |
Followups | Sandman (1d & 50m) |
don't laugh too hard because everyone else is laughing at you.SandmanSandmannospam
Your reading comprehension problems is of no concern to me.
i don't have a reading comprehension problem nor do i have a math comprehension problem.
Haha!
nope.SandmannospamI.e. ISO is arithmetic.http://www.merriam-webster.com/dictionary/arithmetic%20scale "a scale on which the value of a point corresponds to the number of graduations the point is from the scale's zero"I.e, a doubling of the value (ISO 100 ->200 ->400) is related to a doubling of the scale (for instance).
nope.
Indeed it is.
nope.nospamSandman
read the definition. the value of the point does *not* correspond to the graduations, which means it's *not* arithmetic.
Indeed it does, and indeed it means.
basic stuff, yet you still don't understand it.nospamSandman
a change of 25 means something very different at 25->50 (1 stop), 100->125 (1/3rd stop) and 1600->1625 (insignificant).
That's because it's arithmetic. A step in the scale corresponds to number of graduations.
1X 2X 3X 4X 5X 6X 7X 8X 100 200 400 800
Arithmetic, the values correspond to the graduation. Basic stuff.
not only do i have something that supports me, but *you* provided it!!!SandmanJust because you don't understand it doesn't make it untrue, you know.nospam
that applies to *you*.
Haha!nospamSandman
once again, you're insisting you're correct in the face of evidence to the contrary and what's hilarious is that this time, *you* provided the evidence!
Haha, I've provided what, six-seven links that all agree with me, yet you are here refusing to realize that you have nothing that supports you. Same old, same old.
that's exactly what will happen, although he may be polite about it and wait until you leave rather than laugh in your face.As opposed to ISO, where ISO 100 and ISO 200 are *100* steps, and ISO 400 and ISO 800 are *400* steps apart.http://www.merriam-webster.com/dictionary/logarithmic+scale "a scale on which the actual distance of a point from the scale's zero is proportional to the logarithm of the corresponding scale number rather than to the number itself"I.e. a step in the value (DIN 1 ->2 ->3) corresponds to a percentage of the scale.SandmannospamSandmanAnd yes, f-stops are logarithmic and adheres to this, where each step (f1.4 ->f2 ->f2.8) corresponds to a percentage of the scale.nospam
ask a math professor to explain it to you.
Hahahahaha!!!
that's exactly how he'd react when you try to tell him iso is an arithmetic scale.
Hahahaha!!!
i don't need to because i understand the math.SandmanHere's a fun exercise for you, open a Numbers document and write ISO values and plot them on a diagram:<>Now in the "Axis Scale" popup, change "linear" (arithmetic) to "logarithmic" and see how the Iso scale would look had it been logarithmic.nospam
apparently you missed where *i'm* the one who suggested graphing it.
Well, did you? :)
maybe after you're done laughing you'll decide to discuss things.nospamSandman
i didn't think you actually would, because you've just proven yourself wrong *again*.
Haha!
you didn't just write that, did you??nospamSandman
notice that when it's set to linear, the graph is a curve and when it's logarithmic it's a straight line. guess what that means.
It means that when it's a curve, it's linear. You think a linear scale is a straight line?? Haha!
what you call 'fun' is you stubbornly refusing to discuss anything, insisting that you're correct when you're not and digging yourself a deeper hole with every post.nospamSandman
apparently you don't realize that you've just proven it's a logarithmic scale.
My god, this is so fun!
yet another attack, once again avoiding discussing the topic.nospam
here's a fun exercise for *you*: put f/stops in the next column and then plot that, just as you did with iso. switch between linear and logarithmic, just as you did with iso.notice any similarities in the graphs?with linear, both are a curve and with logarithmic, both are a line.guess what that means. it means that both f/stops and iso are logarithmic scales.you've not only provided definitions but you proved it by graphing it. good work!Sandman
My god you're clueless.
This has been so hilarious!indeed it has, but not for the reasons you think.