On Sun, 29 Aug 2004 22:54:36 +0100, "Simon Rose" <[EMAIL PROTECTED]> wrote/replied to:
>Am considering changing my non IS 28-105 3.5-4.5 lens for the 28-135 IS to >get a bit more flexibility with focal length. My question is at what focal >length does the max aperture change to f5.6 in the IS lens? In other words >for both lens, at 105mm focal length what is the max aperture. Do you >understand what I am getting at? Yes, but small aperture differences are hardly significant through the range of FLs. If you had to shoot at 5.6 at all FLs, the difference would hardly be noticeable. If you're into large apertures and shooting wide open and need every third stop you can get, maybe you should be thinking about another lens. I like my 28-135 because of its good zoom range, sharpness, compact size and light weight. I'm pretty sure at 105mm it's f5.6 or close enough. Ok, I checked. It goes to f5.6 around 80mm. -- Jim Davis, Nature Photography http://jimdavis.oberro.com/ Standard Poodles for fun BMW motorcycle for pleasure * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
