Canon EF 17-40mm f4L 35mm This is a powerful IR

This is a powerful IR filter that will block near-IR and visible light

with a tripod mount between 65 and 70mm from the left (or "rewind") edge

but it's pretty minimalist

Aerochrome is E6 process colour infrared film which produces wild

for a total of about 22mm extension when combined

Canon EF 17-40mm f4L 35mm This is a powerful IRThe Canon EF 17 40mm f4L is a high quality full frame wide angle lens for the Canon EF mount. Relatively small and lightweight (relatively) for an ultrawide zoom, this lens also has a pretty respectable f4 constant aperture throughout its zoom range. In excellent condition, with light cosmetic wear. Includes original hood.