I am asked take a large group portrait (40-50 people)for an event in a 30 ft (depth) X 60 ft (wide) X 10 ft (height) tent. I am using a D800/tripod/SB900 and 14-24mm (with 24-70mm back up)to cover the large group.
I appreciate if you can give some advice about the Do and Don't and the setup of the camera and lens.
I just got the Nikon 14-24mm f2.8 and seem like the DoF is not that great even if I used it at F11. My cheap and old 17-250 Tamron gave me better result. Did I do any thing wrong or lens problem?
As has been pointed out, the depth of field for one lens at 20 mm is the same as that of another lens at 20 mm if the distance from the subject is also the same. This is true for any focal length selected on any zoom or prime lens.
Shoot nature with respect and don't trample it or startle its inhabitants. :)
The 14-24 is probably a terrible lens for group portraits, especially in confined spaces. That's because you're going to get tremendous perspective distortion at the outer edges. Put another way, the people at the left and right edges are going to look like they've been horizontally, uhm, expanded. A lot.
If you must shoot in such conditions that require an ultra wide lens, you'll likely find it necessary to correct the perspective in post processing.
> My cheap and old 17-250 Tamron gave me better result.
You must have done something wrong, in that case. As noted above, DOF is the same at any given focal length and distance, and there's very little chance that the optics are superior.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
The main problem with using a wide angle lens for group portraits is the fact that people located towards the edges of the picture look over-weight with egg-shaped heads. You might want to try the geometric corrections in DxO Pro, their "volume anamorphosis" correction does a good job. They have a free trial.