So I have my 5d mark iii on pre-order and i also threw a 16-35L 2.8 onto the order. I already have a 24-105L 4is from my mark ii purchase in 2008. I am looking to spend $2000 on lenses for the new camera so do i return the 16-35? sell the 24-105? keep them both? i guess if i sold the 24-105 i would have $2800 to work with on building my glass artillery. I am basically just an all around photographer who does a significant amount of video work as well. would prefer to stick with canon L lenses. any advice would be great!
personally the 3 lenses I take when I travel are the 16-35 f2.8 the 50mm f1.4 and the 70-200 f2.8
this combo covers everything, I also take a kenko 1.4 TC in case i want extra reach
If you sold the 24-105 you could get the 50f1.4 and the 70-200 f2.8 IS II
I like the 24-105 but I love the other lenses
Do you not miss out on the 35 to 49 and 51 to 70 mm ranges or does it not really matter?
This is sort of the epitome, in my opinion of the problem with gear driven professions/hobbies. Believe me, I've been there, and had the same thoughts you're having - looking at lens catalogs, trying to fill in all the "holes".
But the problem is that WAY too many people enter a field like photography/videography and worry a whole lot about the gear that they should get without knowing if there is a need to actually get any of it. I'm a full time videographer, using DSLRs, and I think one of the things that should answer your question is if you've been out shooting and thought "geez, I wish I could get wider/tighter/had a faster lens". If you haven't noticed a "hole" in your work, then you're probably over thinking this. A 24-105 f4 on a full frame can do a lot. I zeroed in on your comment about the "missing" ranges - in answer to your question, and wickedwombat answered it as well, is no, it doesn't matter, unless you're disabled and can't move.
In my kit, for videography WORK (not for myself), on a 7D (crop sensor) I have a tokina 11-16mm, a canon 17-55mm IS, a 50mm 1.4, an 85mm 1.8, and a 28-135mm IS. I use 80% of the time the 17-55, which is a pretty narrow range, and 99% of the time I'm shooting at either 17 or 55 and never inbetween. The rest of the time I've got the 50mm prime on there, and very occasionally I'll haul out the tokina for the 11mm and it's overall image quality. I should sell the 85, but i might use it if i get the 5d mk iii.
For photography, I just shoot with the 17-55 (if working) or the 28-135 (if vacationing).