Sigma Tele Converter 1.4x TC-1401 for Nikon AF brand_ROR The Sweet 35 is sharp

The Sweet 35 is sharp enough in the very centre

and though it has a manual/autodiaphragm switch

and the light meter is accurate to within a stop

The 3 Legged Thing x1

The Canon Macro Auto Ring is a useful macro accessory which provides automatic stop-down features to FD lenses mounted on non-automatic bellows

Sigma Tele Converter 1.4x TC-1401 for Nikon AF brand_ROR The Sweet 35 is sharpThe Sigma Tele Converter 1. 4x TC 1401 for Nikon F is a 1. 4x teleconverter for select Sigma lenses on Nikon F mount cameras. In excellent condition, with clean glass and only light cosmetic wear. Includes softcase. Lens compatibility list (from Sigma's website, . PDF)