60D + 10-22 or 5D2 + 17-40 for Architecture/Business

So I have the 60D and a 10-22 and I'm using it to do architecture/interior shots for businesses.

How much of a quality upgrade will the full frame give me?

As questions if you need more info

If you're going to go FF, skip the 17-40 and get one of the wide-angle tilt-shifts (17 or 24).

I'd eventually like to get a TS lens, for now that's out of reach. Maybe the Samyang/Rokinon 24 TS?

Absolutely...I would take a look at that. I wish they had a 17mm for you. 17mm is perfect for smaller interior spaces. But, 24mm is workable on a FF camera.

One way you can gain more reach with tilt-shifts is to use the shift function to do shifted panos. When doing that the resulting image is essentially the same as if you had used a much wider focal length. I don't know for sure about the Samyang, but you can use the 1.4x extender with tilt-shifts to lengthen the focal length as well. So, between shifted panos and extenders, you can almost cover the 17-40 range with a 24mm tilt-shift.

But, most importantly for architecture, you can shift for perspective correction (ensuring vertical lines are always vertical and parallel to each other.

Does your business involve more than web sized snapshots like 40 pictures of a house for sale? If so you will wonder why you ever used a crop sensor at all.

My copy of the 17-40 was arguably the best l lens for the money I have owned, and the 20-35's I have owned have been great values too. In your spot I wouldn't buy any lens that will depreciate, get a used copy of the 17-40 now so you can get the money back when you are able to get the TS. You NEED that one, I wish I could justify one just for landscapes but I couldn't really even make the argument to keep my 17-40.

ChunkyDA wrote in post #15231705
Does your business involve more than web sized snapshots like 40 pictures of a house for sale? If so you will wonder why you ever used a crop sensor at all.

Yes, definitely more than web sized.

klimraamkosie wrote in post #15233456
Yes, definitely more than web sized.

then the 5D2 would help, especially for night architecture shots