While I'm aware of Spitfire PR.XIX's being fitted with forward-pointing oblique cameras in underwing fairings, as shown in the photo on page 229 of Price's "Spitfire - A Complete Fighting History", the information about Spit XIX's using converted slipper tanks with cameras is new to me, and very interesting.
Now, somebody mentioned the Spitfire FR.IX. Recently, I stumbled across a video clip of a camera being fitted to a field-converted RCAF Spitfire FR.IX. Here are a few screen grabs, in case anyone is interested:
I've been told that these FR.IX's regularly carried forward looking cameras in slipper tanks, but I have yet to see a photo one fitted out like this.
Dave