Armed Polite Society
Main Forums => The Roundtable => Topic started by: RoadKingLarry on July 25, 2017, 09:42:08 PM
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Caught this little hummer at the feeder this evening. Light was failing so no the best but still pretty cool little bird.
(https://farm5.staticflickr.com/4310/35362895153_198a2123ba_b.jpg) (https://flic.kr/p/VSU5GR)IMG_8952-1 (https://flic.kr/p/VSU5GR) by lmmiers (https://www.flickr.com/photos/19769480@N08/), on Flickr
(https://farm5.staticflickr.com/4306/36127711246_43c0662741_b.jpg) (https://flic.kr/p/X3tXTd)IMG_8940-1 (https://flic.kr/p/X3tXTd) by lmmiers (https://www.flickr.com/photos/19769480@N08/), on Flickr
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(https://armedpolitesociety.com/proxy.php?request=http%3A%2F%2Fmedia.gettyimages.com%2Fphotos%2Fchevron-customer-pumps-gasoline-into-her-hummer-at-a-chevron-service-picture-id108323672%3Fs%3D612x612&hash=c7b4789c502b1bb72a0c7d4663ce82f58643d75f)
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Funny cordex!
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Those are some cool shots, RKL. You really have fun with that camera.
I'd get in trouble if I commented on cordex's picture.
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I'd like to have a hummer at the feeder.
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I'd like to have a hummer at the feeder.
New menu item at the Golden Corral?
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New menu item at the Golden Corral?
Let's take the standard up a little bit from the Golden Corral.
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Let's take the standard up a little bit from the Golden Corral.
Sizzler?
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Sizzler?
Twin Peaks.
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Sizzler?
Ryans
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White Castle?
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I think the pics are more effective with the wing blurring. I just looked it up --their wingbeats run around 80 per second --that's probably a maximum.
http://home.olemiss.edu/~larryago/hummingbirds/funfacts2.html
80 Hz:
https://youtu.be/nhc4u6nJSWk
Do you know the exposure time? I'm thinking maybe about 1/250th, judging from the blur.
(
Heh. Playing around with that frequency site. This orta drive the household creatures nuts:
https://youtu.be/qNf9nzvnd1k
)
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I'd still like to try for a stop action shot just to prove I can do it.
Current effort is with film. Light wasn't great this evening but I think I got a few good ones. They don't seem to be too skittish so I'm going to try to get a little closer in the morning when the feeder is getting the early morning sun. If they spook with me too close I've got a 25' shutter release I'll try.
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Lemme see ...
80 wing beats per second. The wings move maybe 5 inches per beat (x2 -- up and down). 10 inches times 80 beats = 800 inches per second.
So ...
Even at a shutter speed of 1/1000 the wings will be moving 800/1000 = 0.8 inches. Not really stop action. Methinks you need a shutter speed of around 1/4000 of a second and, even at that speed, the wings will move 0.2 inches. Still not really stop action.
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My super nifty Canon F1 only does 1/2000, so on film won't happen. =D
Currently loaded with Ilford HP5+ shooting at ASA 800. Only 1 stop over box speed so not a big push. Probably soup it in Microphen for the little bit of speed boost that will give me.
However, my marvel of technology Canon 70D DSLR will click at 1/8000, so... possible. I think I'll have to set the ISO(ASA) pretty high but it will be attempted.
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I think the pics are more effective with the wing blurring. I just looked it up --their wingbeats run around 80 per second --that's probably a maximum.
http://home.olemiss.edu/~larryago/hummingbirds/funfacts2.html
80 Hz:
https://youtu.be/nhc4u6nJSWk
Do you know the exposure time? I'm thinking maybe about 1/250th, judging from the blur.
(
Heh. Playing around with that frequency site. This orta drive the household creatures nuts:
https://youtu.be/qNf9nzvnd1k
)
Any images from my DSLR will show the exposure data if you click through to Flickr
On the freq test, even with my audio maxed out I was out by 15Khz
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Any images from my DSLR will show the exposure data if you click through to Flickr
On the freq test, even with my audio maxed out I was out by 15Khz
Got any dogs? I'll bet they LOVED you ...
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I bookmarked that page just to use it to run the dogs out of my office if needed.
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Lemme see ...
80 wing beats per second. The wings move maybe 5 inches per beat (x2 -- up and down). 10 inches times 80 beats = 800 inches per second.
So ...
Even at a shutter speed of 1/1000 the wings will be moving 800/1000 = 0.8 inches. Not really stop action. Methinks you need a shutter speed of around 1/4000 of a second and, even at that speed, the wings will move 0.2 inches. Still not really stop action.
That's the way I was roughly figuring to get the 250th of a second. Except I took the blurred portion estimated as a fraction (20-30%) of the full wing swing, and neglecting the sinusoidal-ish motion of the wing.
1 / (1/80 X .20 or .30 depending on the eyeball guesstimated fraction of the full wing swing.)
20% = 1/400th second
30% = 1/266th second
So I figured 1/250th as a "standard" shutter speed. (I know, newer cameras do not "open" to those oldey-timey fixed shutter speeds. But Road King Larry said he was using a chemical camera, so that seemed reasonable as a SWAG.)
I told you that frequency sweep would drive all the critters nuts. I done told you so.
I don't get no respect. No respect at all. <adjusts tie, fusses with shirt cuffs>
Terry