Good morning everyone, I need some advice on a new lens. I work for a furniture manufacturer and for the last year or so I've had the opportunity to do the photography work for our catalog. It's been a great learning experience and my bosses have really given me cart blanch on the supplies I've needed to do a good job for them. One of the things I've struggled with is the distortion I've been getting on the wider shots I've been taking. I'm using a 17-40mm L lens on a 7D and start to see a lot of distortion in the photos. I can straighten a lot of them in PP but would like to eliminate this step.
The image below is a quick example of what I'm seeing. This shot was taken at 21mm, you can see where the cabinet starts to lean back. Can anyone recommend a lens or a change in the way I'm doing things that will eliminate this issue? I need a lens that gets pretty wide angle for larger collections of product.
Thanks in advance,