Sujet : Re: Catch a bullet in flight? 1/8000
De : fred (at) *nospam* fred-smith.co.uk (Abandoned Trolley)
Groupes : rec.photo.digitalDate : 28. Jul 2024, 22:59:49
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v86f0l$3mu1$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13
User-Agent : Mozilla Thunderbird
On 28/07/2024 22:44, Alan Browne wrote:
On 2024-07-28 17:16, Abandoned Trolley wrote:
On 28/07/2024 20:18, Alan Browne wrote:
On 2024-07-28 11:21, Abandoned Trolley wrote:
On 28/07/2024 16:03, Alan Browne wrote:
On 2024-07-28 04:11, Abandoned Trolley wrote:
On 26/07/2024 01:03, miked wrote:
On Thu, 25 Jul 2024 19:48:59 +0000, Arcanauta wrote:
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Il 25/07/2024 20:04, Alan Browne ha scritto:
On 2024-07-24 20:06, Geoff wrote:
On 24/07/2024 7:45 pm, Abandoned Trolley wrote:
On 14/07/2024 22:53, Geoff wrote:
On 15/07/2024 12:41 am, Alan Browne wrote:
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https://www.nytimes.com/2024/07/14/us/politics/photo-path-trump-assassination.html?unlocked_article_code=1.7E0.iSuZ.18TjxlOqrmN6&smid=url-share
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<< Photo Appears to Capture Path of Bullet Used in Assassination
Attempt
Michael Harrigan, a retired F.B.I. special agent, said the image
captured by Doug Mills, a New York Times photographer, seems to
show a bullet streaking past former President Donald J. Trump. >>
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<<S>>
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Am I the only person in here who is wondering why a "professional" photographer would be shooting a practically static subject at 1/8000th of a second ? [AAA]
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Why not? He's shooting free hand at a subject that is gesticulating[1] and moving behind the lectern. Plus the photog is moving around a lot and need to compensate for that too.
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Wants a fairly good DOF as well.
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Apart from the shutter speed and the fact that it was a "Sony" camera, the article does seem a bit short on technical detail - its quite remarkable that theres no mention of the lens aperture or the ASA rating. [BBB]
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ASA? <derisive snicker>
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I just tried my Canon DSLR at 1/8000th in bright daylight, and to get a reasonable exposure I needed to set the camera for 16,000 ASA - you [CCC]
can imagine what the image quality was like.
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Funny for someone going on about technical detail that you didn't mention the aperture.
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Let's see, some basic exposure math based on old-school sunny-16:
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ISO 100 - 1/125 - f/16
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Leave it at f/16 you're only 6 stops to 1/8000 <-> ISO 6400.
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IOW, no big deal with today's sensors, noise-wise.
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And if you trade that 6400 to 3200 and open up to f/11 - still decent DOF and less noise again.
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Keep trading f/8 (bottom of the sweet spot, decent DOF) ISO 1600. Little noise with today's sensor.
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For the above I used sunny-16 as a rule - but could easily play 1 stop either way depending on the camera used (sensor).
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ASA? ROFL.
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[1] https://youtu.be/QAxfBHelonw
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Sorry - I didnt realise I was "going on"
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See labels above [AAA] (starts technical detail), [BBB] continues detail, [CCC] "going on" with the detail.
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Nothing to be sorry about, but will all that detail you left out ... a detail.
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Otherwise I hope the details I provided satisfy you.
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And BTW the professional who shot the photo is indeed a professional, not a "professional".
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keep going on
Ah, so you laid an egg and failed to hatch it.
Got it.
no, you dont get it
I asked a question, and you didnt answer it.
I even used a question mark to make it easy for you.