Annie in Idaho says:
I have been shooting real estate for about 4 years and currently shoot with the Canon 5DMkII and 5DMkIII. But the lens I have been using is the Tamron 10mm-24mm. When zooming to about 14mm there is serious vignetting. I like this focal length but its time to upgrade since the edges of images lose focus, and I can’t find a lens that opens to 14mm or even 15mm. Is the Canon 16-35mm the only full frame lens option for wide shots?
Canon makes the 11-24 f/4 lens that is very high quality, but I would not recommend that anyone use a lens this wide for shooting interiors. It will work but it is over-kill. I’ve used a Canon 16-35mm lens on a Canon 1Ds and 5DMkII for a very long time and my opinion is that in most situations even 16mm is too wide to shoot interiors.
The perspective distortion at 15mm and 16mm is huge. Perspective distortion is where objects in the extreme corners become way wider than the same object closer to the center of the photo. Also, circular objects in the corners become squished and don’t look round. Good interior photography is done closer to 24mm. That’s why tilt/shift lenses designed for photography are usually 24mm. The most popular Canon full frame lenses for real estate photography are the Canon 16-35mm and the Canon 17-40mm (see the poll on my lens page). The wider lenses in the 10-20mm range are intended for crop sensor DSLRs that have a 1.6 or 1.5 multiplier on the focal length.
Yes, I know there are some Realtors out there that ask for ultra wide-angle shots but they need artistic guidance from professional photographers that are more visually sophisticated.
So, for Canon 5DMkII and 5DMkIII DSLRs I recommend either the Canon 16-35mm (the f/4 version is all you need) or the Canon 17-40mm. These are both quality lenses that go plenty wide enough for shooting interiors.