I know, I know. But its been brought up and it's a hobby horse.
There is no evidence the lamp was brought into the room by anybody before the door was broken down. I can't see why no one gets this simple and decisive point. The photo in post 1763 is what everyone thinks the cops saw when the door was broken in. It might be and it might not. You need evidence of that. All the photo proves is how things looked when the photo was taken. There were at least 15 minutes before anyone other than the posties were inside the apartment during which time either one of them might have borrowed the lamp to shine it around and check out what happened. That this is very likely what happened may be inferred from their and Luca Altieri's failure to give evidence that the lamp was already there (look how obvious it is!) which is how such a fact would be most easily proved. It may be inferred also from the strange way Mignini dealt with it, advancing no positive case on it and from the lack of tests.
All these things must be explained, not hand-waved away, especially by those for whom the lamp is a big point. If it really had been in the room it would be a significant clue, especially if it had Rudy's or Raffaele's prints on the plug. Maybe not so much Amanda's but even those would not be totally worthless.
Battisteli moved it most probably.
I read the link and understand the argument (I think) but I gotta say this strikes me as convoluted & a real reach. This logic could be used to undermine any crime scene photo and without testimony from witnesses to support this assertion, it just strikes me as the sort of mental gymnastics I've seen PG people get accused of.