If you had the choice....

None of the above.

Add glass. Don't worry about the body yet.

thanks for all the replies, much appreciated...my biggest concern is the 35 FL compared to the 50 FL. 35L never came off my T1i, because of how good the FL was for me.
Now that I've gone FF I've been thinking about trading it for a 50L, but most reviews don't even compare to the reviews of the 35L.
I don't like switching lenses so having a 35 and a 50, I just don't see it working out for me.


Option A: Trade 35L for a 50L
Option B: Sell 35L and get a siggy 50 or 50 1.4 and 85 1.8
Option C: Learn to love the 35L on a 5D

Well, I'd have advised you to stick with a crop camera and add lenses instead of going full frame and ending up "lens poor".

But that's water under the bridge now....

Problem is, the 35L was a "slightly long normal lens" on your crop camera. It's now a moderately wide angle (and a very good one, at that).

To get back to where you were, sell the 35L and replace it with 50/1.4. I'd go with the Canon since it's cheaper and lighter than the Sigma.

Then, if it were me, I'd think about adding some more lenses. With what you should get out of selling the 35L, if bought carefully and perhaps used, you might be able to add both wider and longer lenses to your kit... Such as a 20/2.8, 24/2.8 or 28/1.8and an 85/1.8 or 100/2. This would give you a considerably more capable kit, but still reasonably affordable, portable and light. These aren't L series lenses, but capable of making fine images, in some cases faster focusing, and reasonably well made USM "mid-grade" quality.

If you don't want to change lenses, why did you buy an interchangeable lens SLR? That's practically the whole point of this type of camera.... the ability to quickly and easily swap out the lenses to meet the needs of different situations.

Personally I'd much rather have a 35L on full frame, than any 50/1.4... But that's just a personal preference. What you enjoy using may be different. You changed camera formats, but didn't change your lenses to match it.

Keep the 5D and your good glass. You won't gain anything with that change.

No need to get the 50L (i.e. f/1.2), the 50/1.4 is more than ok.

adamg5 wrote in post #13629097
thanks for all the replies, much appreciated...my biggest concern is the 35 FL compared to the 50 FL. 35L never came off my T1i, because of how good the FL was for me.
Now that I've gone FF I've been thinking about trading it for a 50L, but most reviews don't even compare to the reviews of the 35L.
I don't like switching lenses so having a 35 and a 50, I just don't see it working out for me.

Option A: Trade 35L for a 50L
Option B: Sell 35L and get a siggy 50 or 50 1.4 and 85 1.8
Option C: Learn to love the 35L on a 5D

If those are the options, personally I would go for the 50L - I did. Forget the reviews, look at the 50L sample thread... .

The 50L is my goto lens for the 5D II, and the most used lens for that matter.

Kind regards, Wim

wimg wrote in post #13629843
If those are the options, personally I would go for the 50L - I did. Forget the reviews, look at the 50L sample thread... .

The 50L is my goto lens for the 5D II, and the most used lens for that matter.

Kind regards, Wim

Went to the 50L sample thread and there are some magnificent photos on there, but half the people gripe about focusing problems...Seems like the newer 50L with date codes X, Y,Z work better than say a UU or UV

adamg5 wrote in post #13630075
Went to the 50L sample thread and there are some magnificent photos on there, but half the people gripe about focusing problems...Seems like the newer 50L with date codes X, Y,Z work better than say a UU or UV

That's true, I guess, I don't gripe however. But then, after two calibrations mine has always worked perfectly .

I got one from the days when they were still problematic, but the particular one I finally got only had 2 cm of "normal" backfocus, rather than focus shift.

The newer ones indeed seem to have been "fixed", and so have AF algorithms, as far as I can see (just as important).

Do note that the focus shift was very specific: only from MFD to about 1.5 to 1.8 m, at apertures from F/1.4 to approximately F/2.8, in this particular combination only. At any other distances, any aperture: no problem. Any other distance from F/1.4 to F/2.8: no problem.

I actually tested 5 of them over a period of more than a year after it had come out, the reason being that I saw what it was capable of in the sharp areas, and the OOF areas surrounding it: I just knew I had to get one. So I kept on going back every so often to see if it had improved, and got one at the end of 2007 (mine is a UV09xx). And in May 2008 I had it calibrated a second time - first time, end of December 2007, it went from 2cm to 1 cm backfocus, second time from 1 cm to 0 cm .

IMO, it is the best 50 mm lens out there for Canon currently, but obviously YMMV. You may want to rent one first to see if you like it.

Kind regards, Wim