some stills from this Russian film - more good reference for the Great Wall hobby kit. Finally some images from the Wikimedia Commons/Bundesarchiv collaboration which are free for re-use
Note the light 'ivory' colours of Luftwaffe camera equipment - these are two Rb 12.5 cameras fitted in the rear of a Fw 190, image reproduced from an early 1970's issue of Luftfahrt International. The letters 'Rb' indicated the type of role the camera was to be used in, in this instance, Rb - Reihenbilder, shortened from the original name - Reihenbildmesskammer - series-picture, topographic camera..
and the kit itself.....more when I get hold of one ...model pics courtesy Guido at aeroscale.co.uk