How to set the camera type (size of camera sensor) in Vray or 3dsMax?

Hello,
I did some perspective matching for a shot, which is made with an DSLR and a 70mm lens.
However, after a good perspective matching in 3dsMax it gave me a 30mm lens as result.

So the only possible explanation is, that the free camera (which was recommended to use) has not a DSLR setting.

Can someone explain, how properly to utilize the focal lens width? Or are there better workflows meanwhile?

Thanks

Either use a Physical Cam, where you can specify the Film/Sensor width, or in case of a standard cam, change the aperture width in the output size rollout in the common tab of render settings.