I thought of getting a tele-converter for my camera.
When I go through the camera manual, it say that when using a tele-converter, one need to set to max. zoom. Otherwise, the picture quality may not be good.
Does it mean that tele-converter is only usable at max. zoom?
If the range for my lens is 28mm to 300mm; does it mean that a 2.0x tele-converter only allow me to take (good) shots at 600mm and I can't use it for any focal length between 56 to 560mm (after 2.0x)?
Thanks for your advice.