On the surface, teleconverters seem like a fantastic way to help a lens pull double duty by allowing you to extend its focal length for a lot less than it would cost to buy another entire lens. While they can be quite useful, they also have some drawbacks you should be aware of before you buy one. This helpful video will show you their pros and cons as well as some other options to help you decide the best approach for your work.
[ Read More ](Originally posted by Alex Cooke)