Aren't there non-inflatable softboxes that fit on a flash? Are they useless as well (I have no idea and don't want to waste money)?
It all depends on your subject to flash distance. Two things combine to create soft light. Size of the light source (bigger is softer) and proximity (closer is softer). Sometimes we use the term apparent size of the light source that combines the two. A big light source farther away would have the same apparent size as a smaller one closer to the subject. After all the sun is the biggest source out there (roughly a bazillion miles across) but its distance make it seem like a pin point. In practical terms it means a small box like those that mount directly on a speedlite may provide some minor effect on a human subject a few feet away. If you increase that to more than 8 ft though they dont do much.
$50! Can you imagine..?
