On an analytical device for photometric detection of chemistry and/or fluid samples comprising a rotatable disc like body (1) a plurality of receptables (7) for fluid samples and optical means (9) for guiding light beams through the receptables are arranged. At least part of the optical means (9) are designed and/or arranged such, that at least part of the light beams is deflected and guided through the receptables in an angle to the radially outward direction on the disc like body (1) which means in an angle to the radius, connecting the respective optical means with the rotation axis (9) of the disc like body (1).