I don´t like the plastic body of the lens.
Me neither, same thing with the 100L - but was Canon seriously thinking about releasing a metal body, or are they set on releasing plastic lenses from now on?
These plastic shells are very strong and will last as long as you will,Nikon has also started to use this technique ..
>sigh< This is the problem with the internet, every joker on the planet set them self up as a lens reviewer...and don't take the trouble to find out the facts before posting blurb and mis-information all over the place.
Canon are now using Aluminium and magnesium alloys in their lens casings. The 100mm IS Macro L is another example. This alloy doesn't feel cool to the touch as the cheaper and heavier casings, but are often percieved to be made from plastic. Where as in reality it's a higher grade product. The 24-70IIL is a fair bit lighter than the older mkI...but has a larger objective lens....so the glass is actually heavier in the mkII than the mkI.
">sigh< This is the problem with the internet, every joker on the planet set them self up as a lens reviewer.."
Exactly who are you referring to as a joker?? It seems that your the one talking Crap, taken from photo zone.de http://www.photozone.de/canon_eos_ff/458-canon_100_28is_5d "The build quality is excellent but then we've expected no less from a professional grade "L class" lens. The lens body is made of very high quality plastics and a metal mount. The broad rubberized focus ring works very smooth. Similar to the non-L macro lens it features a "true" inner focusing system so the lens does not extend when focusing towards closer focus distances. The Canon EF extension tubes are supported whereas the EF tele converters cannot be used."
and referring to the 24-70mk11 http://www.photozone.de/canon_eos_ff/773-canon2470f28mk2ff "The build quality of this lens is exceptional thanks to a tightly assembled combination of metal and - mostly - high quality plastic parts. "
what is so great about a metal casing? BTW the 24-70 L original was one of the lenses most likely to go out of tune after time. it weighs more too. heats up more. And if you drop metal it sometimes bends in nasty ways, certain plastic designs might just crack a front plastic outer bit which might be replaced for a few bucks on your own (of course not all plastic lenses allow for that sort of easy fix)