On Thursday, February 17, 2005, at 12:57PM, Bill Gillooly <[EMAIL PROTECTED]> wrote:
>> But the EF-S 60mm f2.8 isn't wider than 50mm :-( > >I wasn't implying that the 60 is wider than the 50, it's wider than the 100! > > 50mm x 1.6 = 80mm and > 60mm x 1.6 = 96mm > >Apparently the need for a 100mm equivalent is very important to this >market and 80mm doesn't cut it. > >Was there any word on price, maybe it's cheaper. Since this is an EF-S >lens, it is possible that it is specially corrected for the needs of the >APS-C sensor size. I'm still surprised that the Canon 60 macro is an EF-S lens, considering that Nikon has a 60/2.8 macro (although theirs is bigger and isn't internal focus). Would have been nice if it had 58mm filter to match the 100 macro USM. Someone will need to confirm this, but I suspect the effective focal length of the 60mm macro at 1:1 is shorter than the 50/2.5 macro due to the internal focus mechanism. This behavior is present on the 180/3.5 macro. -- John Chennavasin | This article contains material which may inform and [EMAIL PROTECTED] | may be quoted, printed, forwarded, or redistributed www.fobpro.com | as long as the original attribution remains intact. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
