I do use (want) the reach the 100-400mm gives me and even wish I could afford more reach. I most always have it set at 400mm. The extra 100mm will be hard to part with. Even when I briefly owned the 300mm f/4 I usually used it with the 1.4ex II attached but sold that lens for for the 100-400mm. With the new 70-300mm, I am hoping I will get over losing that extra reach by enjoying better IQ. Actually, with the 70-300mm & Sigma 85mm, I am hoping to gain better IQ and faster AF(??)


Having the two larger zoom lenses to choose from, I always seem to choose to take the 100-400mm with me and the 70-200mm sits at home when I go out to the state parks on nature hikes ...the 70-300mm = one happy medium in weight and reach.


As far as the 5d II goes, mainly when I am on nature hikes, I am constantly changing lenses for when I'm shooting birds and other wildlife and then want to use a wide angle for beautiful landscape shots. I've paid my dues for a dirty sensor doing this too often in the past. Plus with the 7D where I live, shooting outside past 4 pm is near impossible for a large part of the year starting now. I am really pushing the ISO when I shoot after work and the noise would not be as bad with the 5D II. Plus the photos you guys are getting with the 5D II are amazing!

Quote Originally Posted by Trowski


It seems like with your proposition you'd be loosing a lot of flexibility just for the 5DII. It also doesn't help that there are rebates on some of those lenses now, so you'll lose even more money on them.


What other lenses do you have right now? It's too bad the 17-55mm f/2.8 won't work on the 5DII, it'll make you want the 24-70mm f/2.8L.

I've thought about these exact problems & it has made me very hesitant of doing this right now! I already took a huge hit when I sold my 300mm. And yes, I have thought about my wanting the 24-70mm when all is said and doneand I am convinced there is no end to the madness!!! The only other lensI own that is not mentioned in my original post is the 100mm f/2.8 IS Macro lens and I'll be hanging on to that baby.

My head has spinned around this for awhile now & I'm hoping to get my mind made up before the new lenses hit the store shelves. Maybe I should at least wait until the rebates expire.

Denise