Purely guessing, but if on a dedicated recce op, probably flying at the optimum altitude for the camera(s) lens(s) to provide the required images, and on a 'straight and level' track for a given course and duration, I doubt if a bomb load would have been carried. More so if, given it was a recce sortie, probably at higher altitude than 'normal' bombing altitude, and using a other than standard recce machine, rather than the specialised Do17P or other specific types - altitude, duration and (escape) speed would be paramount, therefore fuel load would be more important than a 'token' and at most ' nuisance' bomb load.
However, due to their speed and overall performance, it wasn't unusual for Ju88s to be employed on relatively rapid, tactical recce ops, to determine conditions immediately prior to an attack on a specific target, or area to, or in the vicinity of said target(s).
In these instances, it is highly probable/possible, that no photo recce was undertaken, rather the aircraft acting a a sort of 'pathfinder', reporting current local situation via R/T or voice in clear.