Originally posted by wanderography I know for a fact someone on this forum knows what I'm talking about, they posted images on how to do it and everything.
That would be me, and that would be this (description on my flickr page):
Side note: A-series lenses weren't "chipped", as such - the seven contacts on the lens mount are just electrical connections. This was early 80s technology, when digital electronics were too bulky to fit inside a lens. Three of the conductive/insulated contacts are a binary code for the lens' widest aperture, three are the smallest aperture, and one retractable pin tells the body if the aperture is set to 'A'. The earlier K- and M-series lenses have one contact: the mount itself, which the body uses to tell if a K-mount lens is present, so that it opens the aperture all the way to provide more light for focusing (and thinner DoF, useful for focus peaking). The "tape hack" defeats this.