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Comment by dylan604 | Hacker News Reader

Has anyone tried a long exposure to see if the motion smears into something discernible? Obviously harder to expose a bright screen without some ND since the shutter speed is the phone's main exposure control

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Here's the screen recording version of a long exposure (thanks for the nerd snipe) - https://gist.github.com/spro/7599415b0e47de65311557b3454771a...

Perhaps this technique could be defeated by scrolling the background in the opposite direction as the text

That's what I was expecting to see. I didn't have a mount for my phone handy, to try it. The exporting of frames from a video is a good compromise though. nice one

If you zoom out to 25 % the text is clearly visible and screenshottable.

Probably the lower frequencies of noise are not matched? Not sure if the frequencies of the order of movement frequency can actually be matched

How do you take a “long exposure” screenshot? Isn’t every screenshot a perfect digital copy of a single frame or a full on video?

Clearly, I meant using a camera, and I'm guessing you knew that too

Not the parent but that was not at all clear to me. I immediately thought of taking multiple successive instantaneous screenshots and then stacking them. I'm not sure I would have thought of using a camera within a few minutes to an hour, it's not a tool I would ever reach for normally.

I just did this with 50% transparency. It works

Also not the parent but how the hell did you not understand what "long exposure" means ffs

Because the context is about screenshots and context matters

"ffs".

You mean like all of the context I used describing something not a screenshot. Being able to pick up on context clues from the reading is a crucial skill one should have in life. It also makes one look less clueless in conversation when the topics shift quickly and one can keep up.

None of this warrants the type of response they got, nor your attitude.

Periods go inside of quotes, even mealy mouthed shock quotes because an internet abbreviation made you upset.

Nah it's your attitude that brings nothing worthwhile.

Oh, so your screenshot utility has "long exposure" and an "ND" filter and "shutter speed" controls, just like a phone's camera? What kind of screenshot utility simulates optical camera effects? What purpose does that serve? Care to share a link to it?

>Obviously harder to expose a bright screen without some ND since the shutter speed is the phone's main exposure control

https://en.wikipedia.org/wiki/Neutral-density_filter

https://en.wikipedia.org/wiki/Shutter_speed

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