A zoom digital camera comprising: a) a Wide imaging section that includes a fixed focal length Wide lens with a Wide field of view and a Wide sensor the Wide imaging section operative to provide Wide image data of an object or scene; b) a Tele imaging section that includes a fixed focal length Tele lens with a Tele FOV that is narrower than the Wide FOV and a Tele sensor, sensor, the Tele imaging section operative to provide Tele image data of the object or scene; and c) a camera controller operatively coupled to the Wide and Tele imaging sections, characterized in that the camera controller is configured to evaluate a no-switching criterion determined by inputs from both Wide and Tele image data, and, if a no-switching criterion is fulfilled or not fulfilled in a zoom-in operation between a lower zoom factor value and a higher ZF at a ZF value higher than an up-transfer ZF, wherein if the no-switching criterion is fulfilled, the camera controller is further configured to output a zoom video image that includes only Wide image data, wherein if the no-switching criterion is not fulfilled, then the camera controller is further configured to output a zoom video output image that includes only transformed, digitally zoomed Tele image data, and wherein the camera controller is configured to register Tele image pixels to a matching pixel set within Wide image pixels to obtain a fused image and to output the fused image from a point of view of the Wide imaging section. a) a Wide imaging section that includes a fixed focal length Wide lens with a Wide field of view and a Wide sensor the Wide imaging section operative to provide Wide image data of an object or scene; b) a Tele imaging section that includes a fixed focal length Tele lens with a Tele FOV that is narrower than the Wide FOV and a Tele sensor, sensor, the Tele imaging section operative to provide Tele image data of the object or scene; and c) a camera controller operatively coupled to the Wide and Tele imaging sections, characterized in that the camera controller is configured to evaluate a no-switching criterion determined by inputs from both Wide and Tele image data, and, if a no-switching criterion is fulfilled or not fulfilled in a zoom-in operation between a lower zoom factor value and a higher ZF at a ZF value higher than an up-transfer ZF, wherein if the no-switching criterion is fulfilled, the camera controller is further configured to output a zoom video image that includes only Wide image data, wherein if the no-switching criterion is not fulfilled, then the camera controller is further configured to output a zoom video output image that includes only transformed, digitally zoomed Tele image data, and wherein the camera controller is configured to register Tele image pixels to a matching pixel set within Wide image pixels to obtain a fused image and to output the fused image from a point of view of the Wide imaging section. characterized in that the camera controller is configured to evaluate a no-switching criterion determined by inputs from both Wide and Tele image data, and, if a no-switching criterion is fulfilled or not fulfilled in a zoom-in operation between a lower zoom factor value and a higher ZF at a ZF value higher than an up-transfer ZF, wherein if the no-switching criterion is fulfilled, the camera controller is further configured to output a zoom video image that includes only Wide image data, wherein if the no-switching criterion is not fulfilled, then the camera controller is further configured to output a zoom video output image that includes only transformed, digitally zoomed Tele image data, and wherein the camera controller is configured to register Tele image pixels to a matching pixel set within Wide image pixels to obtain a fused image and to output the fused image from a point of view of the Wide imaging section.