Real Estate Lens...

[manaheim]

The TS lenses are nice in that they fix perspective without losing pixels... (you can do almost the same thing with a $15 piece of software) but they're REALLY expensive. If you have the money, I suppose why not... though I wonder how much extra work you'll be doing onsite when taking the pictures (having to adjust the lens each time you move).

I agree with the lack of concern about the F2.8, but anything you can do to minimize barrel distortion would be valuable.

Good luck with it.

 

[grafxman]

FWIW, I've been very happy with Sigma's 12-24mm f/4.5-5.6 on my 6D. I took a lot of photos with it inside the Geology Gems & Minerals section of the Smithsonian Museum of Natural History last summer.