Time lapse through the scope video? Am I imagining things

newguy2k3v2

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We've talked about how changing light, mirage, etc can affect poi. Frank has talked about dope changes at his Alaska classes on the podcast due to where the sun is in the sky.

I vaguely remember someone making a time lapse through the scope video looking at a target to illustrate how it appeared to move throughout the day but I can't find it. Anyone remember or have a link?
 

C.R. Adams

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I would be curious to know what the rifle is resting on in that video. I would have to question if the rubber feet of a bipod or leather of a front forearm rest was exposed to different heat during the day (expanding and contracting) or the sun heated the material differently on one side or the other as the sun moved through the sky.
 
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stevenc23

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I would be curious to know what the rifle is resting on in that video. I would have to question if the rubber feet of a bipod or leather of a front forearm rest was exposed to different heat during the day (expanding and contracting) or the sun heated the material differently on one side or the other as the sun moved through the sky.
He explains the setup in his description on the youtube link. Basically a spotting scope clamped down and enclosed in a box.
 
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Alabusa

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Was it cloudy that day?

By the way the shadows came and went, I would guess the flashes was the sun light changes with cloud movement.
 
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smoooth1

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If you play it at .25 speed (click the little cog left of YouTube in the lower right corner), it is much more interesting.
 
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