There is no problem, infact it is probably better, to have the the coverage of the flash broader than the FOV of the lens. I use a large flash that covers the field for a 28mm lens, and use it will all focal length lenses. The advantage to having wider coverage is that the light from the flash will be more even. Very often there is a hot spot in the center of the light pattern with shoe mount flashes. In doors you get the advantage of the light, on the edges, reflecting off the walls and ceilings, softening the light.
BR From: "Tanya Mayer Photography" <[EMAIL PROTECTED]> .... Only problem is that being 135mm, I am unable to use any of my flash guns with it in TTL mode (they all only zoom to 105mm), and manual flash photography is just one of the areas I know absolutely, (well, virtually) nothing about.
