Two things. Some cameras only allow CiF with AF set to AF.A or AF.S, others have different rules. Please check your camera manual, it should explain that part.
But! I think the problem in this case is the lens. For CiF to work, you must have AF enabled on the camera body (the AF/MF switch) and AF DISABLED on the lens. So this works great for lenses that are manual-focus only. And it works for those lenses that have an AF/MF switch. The problem is that most modern lenses no longer have an AF/MF switch (I think only the ones with a lens motor have this nowadays).
Simply put, DA L 18-55mm, DA 35mm, 40mm XS, DFA 100mm WR, etc. do not allow CiF. And I think that lens you are using won't allow it either. Unless you find a way to disable the AF connection on the lens (like a piece of metal in front of the AF pin on the lens, or an extension-tube or TC). I agree, its too bad that this is the case, but I guess that is just how it is hardwired in current cameras.
CiF is also impossible with lenses that don't show the contacts, which means that even some full manual lenses do not allow CiF (like, if their mount is anodized and non-conductive). Or if the lens is too narrow to cover the contacts (most notably, some Takumar and Soviet lenses with genuine m42 adapter. But if you use a conductive adapter with a collar/flange, CiF will work)
Edit: Oh yeah, you could try the "lens release button trick" - essentially you release the lens (maybe rotate it a little), but you keep it on the camera. By releasing it (not locking it fully), you make the lens "manual" and CiF will be triggered if the contacts are shorted (might not work with plastic mount lenses). But I think you will lose lens ID, and you run the danger of the lens coming loose and falling off. Depends on the scenario if that is likely to happen.
Last edited by Na Horuk; 02-08-2014 at 12:06 PM.