Sigma MC-11 Canon EF to Sony E mount adapter door and the interior is a

and the interior is a bit rough (dividers have been removed)

6 is a compact telephoto-design lens that can cover up to 5x7 format

It will not autofocus with the D40

and transfer the EV reading to the lens

You can also use it to power other low-draw electronics (like a laptop) or charge phones and tablets with its 5A USB port

Sigma MC-11 Canon EF to Sony E mount adapter door and the interior is aSigma MC 11 adapter for attaching Canon EF lenses to Sony E mount cameras. Excellent cosmetic condition. This sophisticated adapter maintains electronic communication between a suitable lens and camera body, preserving autofocus and electronic aperture functionality. Great build quality and fit.