New VX2100 Sunset Image has sun a hexagon at DVinfo.net

Wayne S. Collamore · July 29th, 2005, 06:26 PM

I just started shooting with my new VX2100 and was wondering if anyone has seen this phenomenon. I took some video of a setting sun over the ocean and the red disk was not round....it was definitely six sided with a star burst effect.......six streams of light emanating from the six sides. All I have on the camera is the original lens and hood and a UV/haze filter.....B&W brand. Any ideas? Is this normal?

Wayne

Boyd Ostroff · July 29th, 2005, 06:31 PM

Sounds like you're seeing two classic things: (1) an image of the iris at a small f-stop and (2) vertical smear which occurs with very bright point sources of light.

To minimize this be sure to use your ND2 filter which will allow you to open the iris wider. You could also try a faster shutter speed. Careful shooting into the sun as it can damage both your camera and your eyes if you don't use some common sense!

Wayne S. Collamore · July 29th, 2005, 06:40 PM

Boyb,

The iris makes sense. I will try ND2 and manual to see the effects. I am always a little leary of direct sunlight but it was very low in the sky and was dimmed considerably from ocean haze. A caution to be aware of for sure.

Wayne

Wayne S. Collamore · July 29th, 2005, 07:07 PM

Boyd,

Sorry about that ........ always type b and d wrong.

Wayne

Andre De Clercq · August 7th, 2005, 02:26 PM

What you see is the standard diffraction pattern which is seen with bright pointsources and high f-numbers with a 6 blade iris cam. Use ND (add external ones if needed) NEVER set for high shutter speeds when shooting the sun: the lens stays open all the time (1/60) even at 1.10000 shutter setting and the CCD can get burned.

July 29th, 2005, 06:26 PM	#1
Wayne S. Collamore New Boot Join Date: Jul 2005 Posts: 10	New VX2100 Sunset Image has sun a hexagon I just started shooting with my new VX2100 and was wondering if anyone has seen this phenomenon. I took some video of a setting sun over the ocean and the red disk was not round....it was definitely six sided with a star burst effect.......six streams of light emanating from the six sides. All I have on the camera is the original lens and hood and a UV/haze filter.....B&W brand. Any ideas? Is this normal? Wayne

July 29th, 2005, 06:40 PM	#3
Wayne S. Collamore New Boot Join Date: Jul 2005 Posts: 10	Thanks Boyb, The iris makes sense. I will try ND2 and manual to see the effects. I am always a little leary of direct sunlight but it was very low in the sky and was dimmed considerably from ocean haze. A caution to be aware of for sure. Wayne

July 29th, 2005, 07:07 PM	#4
Wayne S. Collamore New Boot Join Date: Jul 2005 Posts: 10	Sorry about that.... Boyd, Sorry about that ........ always type b and d wrong. Wayne

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

July 29th, 2005, 06:31 PM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,787	Sounds like you're seeing two classic things: (1) an image of the iris at a small f-stop and (2) vertical smear which occurs with very bright point sources of light. To minimize this be sure to use your ND2 filter which will allow you to open the iris wider. You could also try a faster shutter speed. Careful shooting into the sun as it can damage both your camera and your eyes if you don't use some common sense!

August 7th, 2005, 02:26 PM	#5
Andre De Clercq Major Player Join Date: Sep 2002 Location: Belgium Posts: 804	What you see is the standard diffraction pattern which is seen with bright pointsources and high f-numbers with a 6 blade iris cam. Use ND (add external ones if needed) NEVER set for high shutter speeds when shooting the sun: the lens stays open all the time (1/60) even at 1.10000 shutter setting and the CCD can get burned.