Mini35 radial noise at DVinfo.net

Abed Sabeh · December 21st, 2006, 02:42 AM

Hi,

I bought a used Mini35 for the Canon XLIS and it's great but I'm facing sometimes a radial noise which is really obvious in the middle of my screen.
Is there a way to get rid of it?

Thx

Dennis Hingsberg · December 21st, 2006, 09:13 AM

If you're getting radial spinning noise near the center you must make sure your lens is set only between f1.2 (or full open) to about f4. Above f4 you will start to see the grain of the spinning ground glass.

Since you are using a Canon with your mini35 then you have additional light control on the relay lens using the secondary iris control. The best settings for the relay lens iris is between 1 and 4.

If you need additional light control you should be using ND filters on the front of your lens.

December 21st, 2006, 02:42 AM	#1
Abed Sabeh Tourist Join Date: Dec 2006 Location: United Arab Emirates - Dubai Posts: 2	Mini35 radial noise Hi, I bought a used Mini35 for the Canon XLIS and it's great but I'm facing sometimes a radial noise which is really obvious in the middle of my screen. Is there a way to get rid of it? Thx

December 21st, 2006, 09:13 AM	#2
Dennis Hingsberg Trustee Join Date: Oct 2003 Location: Toronto, Canada Posts: 1,055	If you're getting radial spinning noise near the center you must make sure your lens is set only between f1.2 (or full open) to about f4. Above f4 you will start to see the grain of the spinning ground glass. Since you are using a Canon with your mini35 then you have additional light control on the relay lens using the secondary iris control. The best settings for the relay lens iris is between 1 and 4. If you need additional light control you should be using ND filters on the front of your lens. __________________ Blog: www.hingsberg.com Ultimate Exposure Guides for FS5/F7S/F5/F55