Lovin' my Brevis at DVinfo.net

Ben Winter · February 27th, 2007, 11:28 AM

Just received my CF3 diffuser and oscillation control upgrade from Dennis, and begun playing around with it. Lo and behold, what's outside my window, none other than a parking garage off in the distance with about thirty top-notch specular highlights to test bokeh on.

I pull focus to the garage, then from the garage, then adjust aperture to full, then down to f6 on my f1.2 55mm Canon FD.

http://www.frozenphoenixproductions..../bokeh_cf3.mov

Jon Wolding · February 27th, 2007, 01:33 PM

It was hard to tell, but at certain f stops, does the bokeh ever fade on half the circle... as in this grab?

Christopher Witz · February 27th, 2007, 01:52 PM

is that a window screen in the bukah?

Ben Winter · February 27th, 2007, 02:44 PM

Quote:

Originally Posted by Christopher Witzke

is that a window screen in the bukah?

Yes I forgot to mention I'm shooting through a window screen which is causing that pattern in the bokeh.

Quote:

Originally Posted by Jon Wolding

does the bokeh ever fade on half the circle

Only when shooting wide open, which I've made a habit never to do (and you should too!) When shooting wide open, light from more extreme angles (i.e. the edges) can't reach the other side of the lens and thus vignettes in the bokeh. When shooting anything under f2 the bokeh is basically uniform.

David Delaney · February 27th, 2007, 08:12 PM

/Just watched the Lifeguard Ben, nice job. Very funny moments in it. I think the Letus35A held up quite well with the FX1, especially with those Indie Jones night shots.

Dennis Wood · February 28th, 2007, 11:45 PM

Ben, glad you got sorted :-) When the sun comes out, you'll have to be a lot more carefull with grain, with CF3 vs CF1. CF3 likes lots of light using a fast lens used fairly wide open, however, using it at night in lit scenes will work extremely well too. You'll figure it out as soon as you do some testing. With this imaging element, you'll see the aperture blade's effect on bokeh as soon as you begin to engage them...and no halation (pet peeve) as you rack.

February 27th, 2007, 11:28 AM	#1
Ben Winter Trustee Join Date: Jun 2005 Location: Hollywood, CA Posts: 1,675 Images: 1	Lovin' my Brevis Just received my CF3 diffuser and oscillation control upgrade from Dennis, and begun playing around with it. Lo and behold, what's outside my window, none other than a parking garage off in the distance with about thirty top-notch specular highlights to test bokeh on. I pull focus to the garage, then from the garage, then adjust aperture to full, then down to f6 on my f1.2 55mm Canon FD. http://www.frozenphoenixproductions..../bokeh_cf3.mov __________________ BenWinter.com

February 27th, 2007, 01:33 PM	#2
Jon Wolding Regular Crew Join Date: Jan 2007 Location: Tampa, FL Posts: 195	It was hard to tell, but at certain f stops, does the bokeh ever fade on half the circle... as in this grab?

February 27th, 2007, 01:52 PM	#3
Christopher Witz Major Player Join Date: Feb 2006 Location: Louisville, KY Posts: 591	is that a window screen in the bukah?

February 27th, 2007, 08:12 PM	#5
David Delaney Trustee Join Date: Feb 2006 Location: Niagara Ontario Canada Posts: 1,121	/Just watched the Lifeguard Ben, nice job. Very funny moments in it. I think the Letus35A held up quite well with the FX1, especially with those Indie Jones night shots.

February 28th, 2007, 11:45 PM	#6
Dennis Wood Major Player Join Date: Mar 2005 Location: Ontario, Canada Posts: 916	Ben, glad you got sorted :-) When the sun comes out, you'll have to be a lot more carefull with grain, with CF3 vs CF1. CF3 likes lots of light using a fast lens used fairly wide open, however, using it at night in lit scenes will work extremely well too. You'll figure it out as soon as you do some testing. With this imaging element, you'll see the aperture blade's effect on bokeh as soon as you begin to engage them...and no halation (pet peeve) as you rack.