Wayne wrote:

Hmmm, I was reading about taking pictures from planes and most recommended a
300mm lens..

While the focal length is desireable, it's difficult to hold a lens that large
steady in something like a 150. If you opt for the longer lenses, I would also
opt for 400 ASA film and use a fast shutter speed.

George Patterson
Some people think they hear a call to the priesthood when what they really
hear is a tiny voice whispering "It's indoor work with no heavy lifting".