Steve'sDigicams

rmuir · May 22, 2009, 4:05 AM

I'll see what I can do playing in traffic later but 1st the low hanging fruit! Windowless bathroom, flashlight covered with pinholed foil, on a wire, swinging over camera.

vsch1 · May 22, 2009, 6:33 AM

Very, very impressive. Thanks for explaining your procedure so others may try to replicate. Looking forward to more of your "artwork"!

Mugmar · May 22, 2009, 8:02 AM

I really like the first one. It looks like something made from one of those old Etch-A-Sketch toys.

Bynx · May 22, 2009, 9:38 AM

Its funny you said etch-a-sketch mugmar. That was my first name for it. However, what you and I are thinking of is Spirograph. Etch-a-sketch is the little red tv like box with two knobs that control the 'cursor' that removes the magnetic powder. Ive also seen a toy which had a pen suspended over a piece of paper. The pen was then free to move in any horizontal direction like a pendulum. But enough of toys. Great shot rmuir. Particularly the first one which is amazingly clear in its construction as compared to the chaos of the second shot.

Mugmar · May 22, 2009, 9:58 AM

You are correct Bynx, Spirograph is what I was meaning but my brain typed etch-a sketch. Oh well I guess that happens as we get older!!

flutelady · May 25, 2009, 8:26 PM

Fantastic photos.

calr · May 27, 2009, 10:29 PM

I'm waiting for someone to snap their fingers so I can wake up. That looks like a perfect hypnotic object. Good work with the light painting.

Cal

selvin · May 28, 2009, 1:48 PM

Muir,
There's got to be a mathematical equation somewhere that describes these curves. Wonderful work.
I'm surprised how effective your techinique is. A great example of low tech solution.
Aloha

calr · May 28, 2009, 2:13 PM

Selvin, I suspect there's a whole host of equations involved, equations pertaining to pendulum movement and precession, geometric equations pertaining to the slicing of a cone by a flat surface, etc. It boggles my mind to think about it although I used to be pretty good at plain and solid geometry.

Oh! I think there are some trig and calculus involved, too.

Cal

rmuir · May 28, 2009, 3:41 PM

Thanks everyone, trying this has been on my to-do list a long time - since reading about it somewhere. These challenges are great motivators to just do it, whatever it is.

I'd like to have seen how #1 played out past my cameras 15 sec. limit.

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May 22, 2009, 4:05 AM	#1
rmuir Senior Member Join Date: Nov 2003 Location: South San Francisco, California Posts: 142	Long Exposure - the old swinging light trick I'll see what I can do playing in traffic later but 1st the low hanging fruit! Windowless bathroom, flashlight covered with pinholed foil, on a wire, swinging over camera.

May 22, 2009, 6:33 AM	#2
vsch1 Senior Member Join Date: Jul 2005 Posts: 2,885	Very, very impressive. Thanks for explaining your procedure so others may try to replicate. Looking forward to more of your "artwork"!

May 22, 2009, 8:02 AM	#3
Mugmar Senior Member Join Date: Jul 2005 Posts: 3,196	I really like the first one. It looks like something made from one of those old Etch-A-Sketch toys.

May 22, 2009, 9:38 AM	#4
Bynx Senior Member Join Date: Jun 2007 Location: East of Toronto Posts: 8,800	Its funny you said etch-a-sketch mugmar. That was my first name for it. However, what you and I are thinking of is Spirograph. Etch-a-sketch is the little red tv like box with two knobs that control the 'cursor' that removes the magnetic powder. Ive also seen a toy which had a pen suspended over a piece of paper. The pen was then free to move in any horizontal direction like a pendulum. But enough of toys. Great shot rmuir. Particularly the first one which is amazingly clear in its construction as compared to the chaos of the second shot.

May 22, 2009, 9:58 AM	#5
Mugmar Senior Member Join Date: Jul 2005 Posts: 3,196	You are correct Bynx, Spirograph is what I was meaning but my brain typed etch-a sketch. Oh well I guess that happens as we get older!!

May 25, 2009, 8:26 PM	#6
flutelady Senior Member Join Date: Jul 2007 Posts: 2,865	Fantastic photos.

May 27, 2009, 10:29 PM	#7
calr Moderator Join Date: Sep 2003 Location: Beaverton, OR Posts: 8,466	I'm waiting for someone to snap their fingers so I can wake up. That looks like a perfect hypnotic object. Good work with the light painting. Cal

May 28, 2009, 1:48 PM	#8
selvin Moderator Join Date: Aug 2002 Posts: 7,204	Muir, There's got to be a mathematical equation somewhere that describes these curves. Wonderful work. I'm surprised how effective your techinique is. A great example of low tech solution. Aloha

May 28, 2009, 2:13 PM	#9
calr Moderator Join Date: Sep 2003 Location: Beaverton, OR Posts: 8,466	Selvin, I suspect there's a whole host of equations involved, equations pertaining to pendulum movement and precession, geometric equations pertaining to the slicing of a cone by a flat surface, etc. It boggles my mind to think about it although I used to be pretty good at plain and solid geometry. Oh! I think there are some trig and calculus involved, too. Cal

May 28, 2009, 3:41 PM	#10
rmuir Senior Member Join Date: Nov 2003 Location: South San Francisco, California Posts: 142	Thanks everyone, trying this has been on my to-do list a long time - since reading about it somewhere. These challenges are great motivators to just do it, whatever it is. I'd like to have seen how #1 played out past my cameras 15 sec. limit.