best lens for indoor video using a EOS 7D

[HowardLane]

I want to do interviews using my 7D. I purchased an EF 50mm lens but it seems that I can't get far enough away from my subject/s to get tehm completely in the frame. After sepperating the subject from the background the maximum distance I can get away from them is about 12 foot. I know that my 7D is a cropped frame camera so therefore it increases the mm, is there a chart that I could use to determine the right lens to use?

Thanks in advance

[Skirball · Accepted solution]

http://www.cambridgeincolour.com/tutorials/camera-lenses.htm

There are also plenty of apps for iPhone and Android that can calculate focal length, depth of field, hyperfocal distance, etc.

[HowardLane]

thanks for the link. I'm not ready for a smart phone yet, still using the one on the same level as me 😉 Thank you

[ebiggs1 · Accepted solution]

Howard just try a 17-40mm f4 L. You will love it on the 7D.