Hi Kay, yes lens converters are worth buying as long as you buy qualiy, the downside with them is you get a slower exposure, IE you will be 2-3 "f" lower as they will let in less light, but in good light that shouden't be a problem or if you use a tripod, I think Japanese are about the best opticts these days as all the quality cameras come from there, IE Nikon Cannon etc.
Bob.