Cam effect trick at DVinfo.net

Frank Granovski · August 11th, 2003, 03:55 PM

A friend of mine from Edmonton shoots wedding stills with his Canon digital cam. I can't recall which model but it cost him about $4000 Canadian. He also has 4 lenses for it. Anyways, he showed me a neat trick. You set the shutter at 1/4 and use the flash. As soon as you click the pick, you quickly turn the cam upside down, or a complete 360 turn. When you turn the cam like this (quickly), the light from the flash smears for an interesting effect. Just thought I'd share this. :)

Steven Digges · August 11th, 2003, 05:20 PM

Frank,

That is a neat trick. I think I can help you understand what is taking place. By moving the camera quickly when shooting a stationary subject you are essentially making a pan shot of a stationary subject. The smeared portion of the image is created by the ¼ second exposure, which is long enough for the ambient light to be recorded on the image. The light from the flash creates the portion of the image that still appears to be sharp. The average on camera flash duration is a 1/10,000 second burst of light. That is fast enough to record the part of the image that is not smeared, even though you are moving the camera.

Steve

Frank Granovski · August 11th, 2003, 07:00 PM

Thanks for the explaination. I saw some of his examples. He told me that you can also do this with film. Never tried it, though. I have enough trouble with triple exposures. :)

Dan Holly · August 14th, 2003, 12:09 PM

You can also do this effect in Photoshop as an FYI, (not to down play the camera effect =)

Adrian Douglas · August 22nd, 2003, 10:21 AM

I messed around with this the other day. I got some cool shots of a classic Canon EF body with a 50mm lens. I pumped up the sharpness and saturation and some of the shots look pretty trippy.

August 11th, 2003, 03:55 PM	#1
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Cam effect trick A friend of mine from Edmonton shoots wedding stills with his Canon digital cam. I can't recall which model but it cost him about $4000 Canadian. He also has 4 lenses for it. Anyways, he showed me a neat trick. You set the shutter at 1/4 and use the flash. As soon as you click the pick, you quickly turn the cam upside down, or a complete 360 turn. When you turn the cam like this (quickly), the light from the flash smears for an interesting effect. Just thought I'd share this. :)

August 11th, 2003, 05:20 PM	#2
Steven Digges Trustee Join Date: Oct 2002 Location: Phoenix, AZ Posts: 1,828	Frank, That is a neat trick. I think I can help you understand what is taking place. By moving the camera quickly when shooting a stationary subject you are essentially making a pan shot of a stationary subject. The smeared portion of the image is created by the ¼ second exposure, which is long enough for the ambient light to be recorded on the image. The light from the flash creates the portion of the image that still appears to be sharp. The average on camera flash duration is a 1/10,000 second burst of light. That is fast enough to record the part of the image that is not smeared, even though you are moving the camera. Steve __________________ www.CorporateShow.com Been at this so long I'm rounding my years of experience down...not up!

August 14th, 2003, 12:09 PM	#4
Dan Holly Major Player Join Date: Jul 2002 Location: Anchorage, Alaska Posts: 336	You can also do this effect in Photoshop as an FYI, (not to down play the camera effect =) __________________ Dan Holly Anchorage, Alaska

August 22nd, 2003, 10:21 AM	#5
Adrian Douglas Trustee Join Date: Oct 2001 Location: Chigasaki, Japan. Posts: 1,660	I messed around with this the other day. I got some cool shots of a classic Canon EF body with a 50mm lens. I pumped up the sharpness and saturation and some of the shots look pretty trippy. __________________ Adrian DVInfo.net Search for quick answers Where to buy? From the best in the business...DVInfo.net sponsors

August 11th, 2003, 07:00 PM	#3
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Thanks for the explaination. I saw some of his examples. He told me that you can also do this with film. Never tried it, though. I have enough trouble with triple exposures. :)