The Corona photo reconnaissance satellites, unlike their Zenit counterparts in the USSR, were not pressurized and utilized film. If outgassing was an intractable issue, they also would have been affected.
That's what the super thin Estar base and SO-135 emulsion were designed for. The degree and rate of outgassing depends on the amount of material present. The trick was for them to outgas rapidly and completely early in the mission, before it became an operational constraint.
The lunar surface Hasselblad magazines were kept in the MESA, and were not sealed. There was a darkslide, but that is not gas tight. The magazines had 80 hours or so in hard vacuum to acclimate and complete their outgassing prior to being used.