verysimplejason said:
I don't know if you've got a bad copy of 85mm but I've tried it and found it's acceptable for its price. True, it might not be able to match 70-200 open wide but stopped down, I think it's almost comparable especially if you take into consideration its price.
http://www.dxomark.com/index.php/Lenses/Compare-Camera-Lenses/Compare-lenses/%28lens1%29/322/%28brand%29/Sigma/%28camera1%29/0/%28lens2%29/241/%28brand2%29/Canon/%28camera2%29/0/%28lens3%29/408/%28brand3%29/Canon/%28camera3%29/0
I think you're into more of a consumer than an enthusiast/professional at least for now since you're also looking at video autofocus (even 6D and 5D3 doesn't have one). By all means, T4I is better than 5DC on that area. As for ergonomics, it's subjective from person to person. I have suggested a good 5DC or 5D2 camera because I know a lot of photographers who want to go FF but didn't go FF all at once just because of the price (I'm one of them). While it's still better to invest on a lens than a body, you also should know that you can only take advantage of the 24-70 or 70-200 fully if you're using an FF body. ISO and DOF aside, I for one value the fact that I can go for a wider focal length using a 24-70 and an FF than using it with a crop body. That alone for me makes investing on a 24-70mm lens more worthwhile. Of course that maybe isn't the case for you. If you think you can be happy with the T4I and 24-70, then by all means, buy it. You can still upgrade later if needed. I'm not here to convince you otherwise. I'm just letting you know what I feel when choosing between an APS-C and an FF body.
I was comparing the 85mm to a $2000 lens and it didn't meet my high expectations (my fault, not the lens) -- I agree that the 85mm f1.8 is acceptable for the price, but for just a few hundred more I'd rather get a sharp zoom that covers the same focal length plus many more. As for video, I'm not interested in the AF so much as just having the ability to take video, which I don't do often but I'm extremely glad to have it when I do. And the crop factor... I know I'd be lacking on the wide end with the 24-70 on an APS-C sensor but the plan would be to live with it until I had enough money to shell out for an FF body!
And I do appreciate the advice from you and everyone else on here, this is a great discussion and I'm glad you decided to join in
Botts said:
Also, I reread the gear you had before. Did you feel you were lacking normal length lenses back then? You effectively had a 16-35mm and a 70-200mm before. Also, how did you find the apertures that you had back then?
The 10-22 was a 3.5-4.5, on a crop sensor. When you consider the ~2 stop ISO advantage on the 6D vs the T3i, you could effectively shoot a 16-35mm f/7-8.8
I did (and still do) have the 50 1.8 and the 40 pancake -- however, I decided that I wanted a sharp standard zoom rather than get more or better primes. I loved the 70-200 for its image quality, but I now feel that I would rather have that same quality in the 24-70 focal range.
As for apertures, f2.8 is good enough for me. Shooting with the 70-200 I never felt limited by its aperture, and I used it every time for my telephoto needs, even when I had access to primes with larger apertures. Losing a full stop of light at F4 would not be ideal, but for now I can live with it considering how amazing the 6D's high-ISO performance is.
The variable aperture of the 10-22 annoyed me, but the image quality was excellent. However, I rarely shot it wider than 15mm (and when I did, I didn't like the distortion) so although I'm sure the 16-35L is a great lens I'm not really considering it because half the focal range will most likely be wasted.
So basically for my type of shooting, non-L primes do not perform well enough, L primes are not versatile enough for the price, 16-35 is too wide, and 70-200 is too telephoto. A zoom covering the focal range of 24-85mm would be right where I want to be and it just so happens I've been spoiled by the sharpness/color/contrast/versatility/f2.8 of the 70-200 II. I would personally be okay with sacrificing the extra focal range of the 24-105 for the image quality of the 24-70 but it is simply not within my budget right now.
All that said, thanks for the advice everyone.
I have decided to go with the 6D + 24-105 kit, and plan to save up for the 24-70 in the future.