Abstract: The invention relates to a microencapsulated oil or fat product, wherein at least one oil or fat is dispersed in the matrix material as particles or drops having an average diameter of less than or equal to 2 &mgr;m, the oil or fat containing at least 10% by weight of highly unsaturated fatty acid, preferably &ohgr;-3 and &ohgr;-6 fatty acids, the level of free fatty acids being below 5.0% by weight and preferably below about 0.5% by weight, and the matrix material consisting of caseinate and optionally at least one carbohydrate.

Abstract: A reproduction camera for the production of contact screen prints from an original is provided with sensing means, such as a photoelectric cell, for obtaining a measure of the light reflected by the original under conditions of an imagewise main exposure through the contact screen and a signal representing the obtained measure is inputted to a computerized control system through which, by taking into account the effect of stray light caused by reflection from the original during the main exposure, a non-imagewise additional exposure through the contact screen is effected so as to reproduce the minimum and maximum optical densities of the original with the correct dot sizes.

Abstract: A reproduction camera employed for the production of contact screen prints from an original is provided with a control system including a computer means which, after feeding in data representing the minimum and maximum optical densities of the original, the optical data of the screen used and the required data of the camera and the light sensitive material such as film, determines and applies a dosage for the main exposure and one or more additional exposures to yield a screened print of which the highlight dots and the shadow dots have specific sizes correspondingly substantially completely to the minimum and maximum optical densities of the original. The computer means includes an adjustable basic screen range regulator for varying the main exposure at the time of the adaption of at least one of the additional exposures in order to continue to reproduce substantially completely the minimum and maximum optical densities of the original with the specific dot sizes.