The TS-E 17 is better for tall buildings or for interior shots, but the TS-E 24 is more versatile for general landscapes and pano-stitching (especially if you have close foreground objects near the edges). It is harder to make 17mm panos interesting. Extenders can be used on them to give you more framing options but the TS-24 will be sharper and faster than the TS-E 17 + 1.4x. In your case, I can see the TS-E 17 being more useful for the trip, but how much would you use it after? Is it worth renting it for the trip or buying it and possibly selling it in the future?
Are you going to be bringing a tripod? If not, then I'd avoid the TS-Es for now. Shooting handheld with shift is easy enough, but to get the best results, you'll want to shoot at ISO 100 and take mulitple exposures to blend later, which will give you the most leeway when post-processing them later.
+1 on the fisheye. Defished or not, it would give you creative options in urban landscapes.
If I were you, I'd take the
1.4x for both the ts-e and 135
The 135 would be the least used, and the 16-35 and the 50 the most used.
I always bring my tripod for shots of landscape and architecture
I've used the old 24 TS-E and kind of liked it for shooting buildings in my own town when I tested it.
For landscape 17mm TS-E would be better aswell as for the indoor shooting.
But the 17TS-E is not as sharp as 24mm, especially not shifted (I've read..)
Today I'm used to make panos with my 70-200 handheld, but that's kind of hard to do with buildings that are quite near though
In Dubai I guess that there will be very large and nice buildings and sometimes not that much room or space.
Perhaps you can take several shots with the 24mm instead?
And if I visit a church or something I can use the 24mm for pano indoors aswell? Haven't tried it though so hard to say.http://www.fredriklarsson.se/blogg/wp-content/uploads/2012/12/wpid4696-emma-julkonsert2012-12_3_4_5_6.jpg
This picture is taken with the old TS-24 (single shot. Its a local church here in Umeå, Sweden.
Renting the TS24 / TS17 would cost about $1000 for a month. If I buy it afterwards, the rent is free (I just pay for the lens as I've bought it right of the start).
Thanks for the input!