Pages: [1]   Go Down

Author Topic: Strange effet in night image  (Read 2264 times)

BernardLanguillier

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 12648
    • http://www.flickr.com/photos/bernardlanguillier/sets/
Strange effet in night image
« on: December 16, 2008, 11:02:45 pm »

Dear all,

The following image was shot casually with a Canon G10. The train is probably 6 or 7 m away from me.



Cheers,
Bernard

Kagetsu

  • Full Member
  • ***
  • Offline Offline
  • Posts: 202
    • Refractive Labs
Strange effet in night image
« Reply #1 on: December 16, 2008, 11:17:36 pm »

That's pretty much it. I've experienced similar, which a bus and LED's travelling past, with fireworks overhead. solid smooth streaking with the fireworks, but 'blinking' effect on the bus LED's... I'll have to find the image to show... It's from my lost archive of 2005. ~_~
The yellow is effectively the same thing too. It's being lit by the refresh rate of the light.
Logged

thierrylegros396

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 1802
Strange effet in night image
« Reply #2 on: December 17, 2008, 05:57:55 am »

Quote from: Kagetsu
That's pretty much it. I've experienced similar, which a bus and LED's travelling past, with fireworks overhead. solid smooth streaking with the fireworks, but 'blinking' effect on the bus LED's... I'll have to find the image to show... It's from my lost archive of 2005. ~_~
The yellow is effectively the same thing too. It's being lit by the refresh rate of the light.

50Hz or 60Hz in Japan ?!

Can you give us the speed of the Shutter for that Photo ?!

Wanna check by calculation !

Have a Nice Day.

Thierry
Logged

marcmccalmont

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 1772
Strange effet in night image
« Reply #3 on: December 17, 2008, 07:54:57 am »

[attachment=10333:IMG_0309_3.jpg]

Ebisu Station the other day!!!!
Marc
Logged
Marc McCalmont

BernardLanguillier

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 12648
    • http://www.flickr.com/photos/bernardlanguillier/sets/
Strange effet in night image
« Reply #4 on: December 17, 2008, 09:50:13 am »

Quote from: thierrylegros396
50Hz or 60Hz in Japan ?!

Can you give us the speed of the Shutter for that Photo ?!

Wanna check by calculation !

Have a Nice Day.

Thierry

Was 1/6th, so it is probably more like 120 hz.

Cheers,
Bernard

juicy

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 254
Strange effet in night image
« Reply #5 on: December 17, 2008, 09:56:39 am »

Hi,
You can see this phenomenon with many different types of lamps. For example many streetlights induce similar effects if the camera is moving during a longish exposure.

Cheers,
J
Logged

BernardLanguillier

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 12648
    • http://www.flickr.com/photos/bernardlanguillier/sets/
Strange effet in night image
« Reply #6 on: December 17, 2008, 06:59:25 pm »

Quote from: marcmccalmont
Ebisu Station the other day!!!!
Marc

He he he, fun coincidence indeed.

Cheers,
Bernard

marcmccalmont

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 1772
Strange effet in night image
« Reply #7 on: December 18, 2008, 03:11:35 am »

Quote from: BernardLanguillier
He he he, fun coincidence indeed.

Cheers,
Bernard

I forgot to add G10 Also!
Marc
Logged
Marc McCalmont
Pages: [1]   Go Up