I've been waiting for either of these lenses to go on special before I make the leap and as of yesterday they're both at 10% off so I'm heading down to my local store to buy one...Still cant decide which one though.
I have the Canon 600D with the twin kit lenses and spent the majority of this year taking photos of my boys playing Rugby using the 55-250mm kit lens which performed admirably most of the time. Next year my eldest moves to a full field while my youngest still plays on the half field for another year.
I've borrowed a 100-400 (series 1) from a friend and really noticed the weight (I'll get over it) but definitely missed the 55mm-100mm focal length. I didn't notice a huge amount of difference in the photos between the 100-400 and the kit lens but didn't pay much attention to the "keeper rate".
I've asked around, trolled the internet, read the reviews and still none the wiser. I had originally planned on the 100-400 but have been swung towards the 70-200.
I've looked through the Rugby thread here http://photography-on-the.net .../showthread.php?t=1418607 and noticed quite a lot of people using the 70-200f2.8, a few using the 300mm f2.8 and some using the 100-400.
I also checked through the hundreds of rugby photos I took this year to see what focal length they were....some days I would have used under 100mm 5% of the time some days it may have been up to 15% of the time. I would have the same percentages at 250mm focal length also. Add to this that both my boys were playing on the half field this year and I assume that as they progress to the full field I would use under 100mm focal length less.
Can anyone help, I know it's a very subjective question and I'll be happy with either lens and at the same time also wish I bough the other one!!