Canon EF 200-400mm f4L IS USM Extender 1.4x brand_Argus and it's in good shape

and it's in good shape

No effect on picture-taking function

The viewer has some minor internal dust and a small chip in one of the eyepiece surrounds

is sold separately)

but it does have a tripod mount

Canon EF 200-400mm f4L IS USM Extender 1.4x brand_Argus and it's in good shapeThe Canon EF 200 400mm f4L IS USM Extender 1. 4x is a large lens, as you might imagine it's about 3. 8kg and just shy of 40cm long but for your trouble, you get fast autofocus, fantastic image quality, a pro grade image stabilizer, and heavy duty build quality. Also, this lens has a handy built in 1. 4x teleconverter that just pops into place with the flip of a lever, instantly transforming it into a 280 560mm f5. 6. Light cosmetic finish wear, clean