Evidenz (n.) is a full certainty which could easily subsequently become doubtful. The definite blue tone of that revolver could easily become a red tone when brought under a different light.
Evidenz (n.) is a grasping of something itself that is, or is thus, a grasping in the mode 'it itself' with full certainty of its being that excludes every doubt.
Evidenz (n.) is a perceptual object or state of affairs that is experienced as 'being given with certitude'.
Evidenz (n.) is non-derivative: It presents itself directly to intentional consciousness.It is absolute, 'the blue tone of that revolver as perceived insofar as it was perceived'.
Evidenz (n.) is not a psychological sense of certitude but rather an absoluteiveity which presents itself in person to consciousness.