Sigma TC-1401 1.4x Teleconverter for Canon EF Avenger D400 The AP-15 Series operates within

The AP-15 Series operates within a nominal frequency response range of 400 to 14

especially in cold weather

so connectors are easy to affix to the cable Fully tested to 10

It is intended for use with the Propod III and Pro 3000 tripods

it is a far cry less dear than similar units from other manufacturers

Sigma TC-1401 1.4x Teleconverter for Canon EF Avenger D400 The AP-15 Series operates withinCanon EF Teleconverter 1. 4x Magnification Factor Communication Between Lens & Camera AF Operates at up to f 8 One Special Low Dispersion Element Dust and Splashproof Compatible with Select Sigma Lenses Optimized for Canon EF mount lenses in the Global Vision line, the TC 1401 1. 4x Teleconverter from Sigma will offer an increase in focal length of 1. 4 times for select Global Vision lenses. This model offers full communication between the lens and