> It seems I may have stirred up a bee's nest here !!! > > I think we need to understand that "IS" is NOT the do-all and end-all > invention for photographers, Yes it can work very well (I personally leave > IS switched on 100 percent of the time on my 28-135mm (Except when the > camera is tripod mounted and MLU is in use !) And about 85 percent of the > time on my 100-400mm lens (Mainly mode 1, But will now try leaving it on > mode 2 and see what the result are), And then again on some shots > it doesn't > work very well, I think if it worked 100 percent of the time then nikon, > minolta, and pentax users would be very thin on the ground :-) !!! >
Hi All, Long ago I posted my disappointment in the performance of the IS lenses starting with the EF 75-300IS and EF 28-135IS lenses. Then I posted my disappointment in the apparent loss of contrast and sharpness of the EF 300 4L IS when compared to the EF 300 4L non-IS and EF 300 2.8L under my normal field conditions (used with a monopod, usually moderate ISO tranny films). Many people said the benefits of IS were worth the trade offs. I have always disagreed and eventually sold my EF 300 4L IS because of the lesser results than with a rented EF 300 4L non-IS and the obvious disparity in optical performance of the EF 300 4L IS vs. my own EF 300 2.8L. But for all the shortcomings of the EF 300 4L IS (the only pro class IS lens at the time of testing), I still consider this to be a very good lens with a powerful technology that when used within its limitations is an impressive lens that can deliver great images. I have used the EF 300 4L IS on high speed race cars (CART champ cars, NHRA pro classes, Top Fuel, Pro Stock etc.), with no problems except for the IS glitches that happen some times. For the most part IS mode 2 works O.K. for smooth predictable pans but I never had much luck with irregular motions like Supercross or Motocross bikes where they are moving forward, up and down. Here you get all kinds of IS glitch movements so I just go back to my EF 300 2.8L which has none of these weirdness. What's good about all this is with Canon introducing all these new IS lenses the prices of used EF 300 2.8L, EF 400 2.8L and EF 600 4L lenses have fallen to the point where anyone dedicated to long, fast glass can almost buy one now! Regards, Chip Louie * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
