Sigma APO Teleconverter 1.4X EX DG for Nikon F pentax adapter Compatible with Canon RF-mount lenses

Compatible with Canon RF-mount lenses (not included)

and there may be a few others out there

This original brass lens is manufactured by C

sharp prime lens for Nikon full frame SLR and DSLR cameras- and it's pretty compact

Sigma APO Teleconverter 1.4X EX DG for Nikon F pentax adapter Compatible with Canon RF-mount lensesThe Sigma APO Teleconverter 1. 4X EX DG for Nikon F mount is a good quality, compact teleconverter for use with many (but not all!) Sigma F mount zoom lenses. It may also work with other brands, but we can't guarantee it. Please check your lens instruction manual for compatibility: this is not a universal teleconverter and it won't work with everything. In excellent condition, with clean glass and good function.