ray first of the lens is still a 300mm lens with an view angle of a 480. it is like shooting with a 300 and then cropping for the angle of the 480. you don't have a 480mm lens. there is no extender in the d30 to make it a true 480mm lens. the IS stays the same.
----------------------------------------------------------------------- Regards, Mehrdad -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ray Amos Sent: Tuesday, April 09, 2002 6:52 PM To: EOS usergroup Subject: EOS IS & digital If I use a 300 mm IS lens on a D30 camera, the effective focal length becomes 480 mm. Does the IS still help two stops or does the change in focal length also change the effectiveness of the IS. Since there is a 60% increase in focal length would there also be a 60% decrease in the effectiveness of the IS? Ray Amos * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
