The Last Bass Outpost

Main Forums => The Bass Zone => Topic started by: Dave W on August 08, 2009, 10:30:45 AM

Title: "stunning bass-string shot"
Post by: Dave W on August 08, 2009, 10:30:45 AM

Frequenzy of the bass strings and high shutter speed of the camera lead to this suprising string-wobble footage.

There is no slowmo applied to the take. Sound is original.
video was filmed with a Canon 5D MarkII , Nikon 50mm lens on 1,8f.

http://vimeo.com/4041788

Title: Re: "stunning bass-string shot"
Post by: chromium on August 08, 2009, 11:10:31 AM

Neat how you can clearly see all of the partials in the string's vibration.

There's some cool stuff on vimeo

Title: Re: "stunning bass-string shot"
Post by: nofi on August 08, 2009, 04:01:24 PM

you can line up your bass strings with a televsion screen and see the same thing. hold your bass fretboard up with the strings profiled against the screen and pluck a few with different frettings. oh yeah, the tv must be on. ;)

Title: Re: "stunning bass-string shot"
Post by: ramone57 on August 09, 2009, 10:08:51 AM

I've done that, it's pretty wild.  iirc, an A# is almost the right frequency to see a 'standing' wave.

Title: Re: "stunning bass-string shot"
Post by: Pilgrim on August 09, 2009, 01:07:35 PM

Back in the CB craze days, I had a car with a long whip antenna on the rear bumper.  One night while parked under a street lamp, I happened to swat the antenna as I passed by and watch the a similar display - when whipping it back and forth, I could see 20 antennas, all of which appeared to be stationary.  It's all based on the light wavelength...and in the original above, the shutter speed of the camera.

Title: Re: "stunning bass-string shot"
Post by: ilan on August 09, 2009, 01:14:33 PM

You see, physics is fun

Title: Re: "stunning bass-string shot"
Post by: nofi on August 09, 2009, 01:39:13 PM

this dovetails nicely with my noodling in front of the television theory. ;)

Title: Re: "stunning bass-string shot"
Post by: Highlander on August 09, 2009, 01:43:22 PM

Yacannychangethelawsafisics...

Title: Re: "stunning bass-string shot"
Post by: ilan on August 10, 2009, 05:58:44 AM

Quote from: nofi on August 08, 2009, 04:01:24 PM

you can line up your bass strings with a televsion screen and see the same thing. hold your bass fretboard up with the strings profiled against the screen and pluck a few with different frettings. oh yeah, the tv must be on. ;)

Closing one eye also helps seeing the effect.

Title: Re: "stunning bass-string shot"
Post by: OldManC on August 13, 2009, 05:43:11 PM

OK, I just posted this on my Facebook profile. That is really cool Dave. Thanks!