Hi all, dont mean to sound thick but cant seem to work out the total focal length of a 300mm lens on a 20d with a 1.4 converter. thanks for any help , Jerry
jerrythesnake Senior Member 565 posts Joined Feb 2005 More info | Jan 09, 2006 14:35 | #1 Hi all, dont mean to sound thick but cant seem to work out the total focal length of a 300mm lens on a 20d with a 1.4 converter. thanks for any help , Jerry http://www.pbase.com/jerrythesnake
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tommykjensen Cream of the Crop More info | Jan 09, 2006 14:37 | #2 420 mm (300 * 1,4). EDITING OF MY PHOTOS IS NOT ALLOWED
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tommykjensen Cream of the Crop More info | Jan 09, 2006 14:38 | #3 If You mean including the 1,6 crop factor in the 20D it comes to 420 x 1,6 = 672 mm EDITING OF MY PHOTOS IS NOT ALLOWED
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tommykjensen wrote: If You mean including the 1,6 crop factor in the 20D it comes to 420 x 1,6 = 672 mm Many thanks Tommy http://www.pbase.com/jerrythesnake
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GyRob Cream of the Crop 10,206 posts Likes: 1413 Joined Feb 2005 Location: N.E.LINCOLNSHIRE UK. More info | Jan 09, 2006 15:59 | #5 i think he means 300x 1.4 x 1.6 crop = 672mm "The LensMaster Gimbal"
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GyRob Cream of the Crop 10,206 posts Likes: 1413 Joined Feb 2005 Location: N.E.LINCOLNSHIRE UK. More info | Jan 09, 2006 16:03 | #6 sorry tommy didnt see your reply "The LensMaster Gimbal"
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