I have an EFS 18-135mm lens on my EOS 70D. I have an old extender that fits the camera but not the lens. I am informed that Canon does not make an extender for this lens. Does anyone know of third party generic extender that may fit. Thank you
Kenko makes a 1.4x Teleconverter that works well with both EF and EF-S lenses. https://www.bhphotovideo.com/c/product/1275833-REG/kenko_k_tphd1_4_c_teleplus_hd_1_4x_dgx.html