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Digital aerial cameras have replaced analogue aerial cameras in several countries. The development for operational aerial photogrammetry started with the line scan camera ADS40, followed by Z/I Imaging DMC and Vexcel Imaging UltraCam. The capacity of the UltraCam was enlarged by replacing the used CCDs with 9μm pixels over 7.2μm to 6μm for the UltraCamXp, having 196 Mpix instead of UltraCam D . The DMC and the UltraCam are system cameras, reaching the large number of pixels by a combination of the DMC and the UltraCam are system cameras, reaching the large number of pixels by a combination of 4, respectively 9 CCDs. Even if the large format line scan cameras have demonstrated their geometric potential, the major replacement of analogue cameras came by the digital large frame cameras, while the line scan cameras found their major field with orthoimages. In the meantime digital mid-format cameras, equipped with a single CCD-array, with approximately 39 Mpix took also a share by the replacement of the analogue aerial cameras. Their combination with GPS and inertial measurement units (IMU) compensates partially the disadvantage of handling a high number of images. The mid-format cameras are equipped with Bayer pattern, limited to 3 spectral bands in relation to the 4 spectral bands offered by the large format frame and line scan cameras. This changed by the introduction of mid-format system cameras RMK D from Z/I Imaging DMC and UltraCamL from Vexcel Imaging. In addition now camera systems equipped with 4 mid-format cameras as the IGI Quattro DigiCAM and the Trimble Aerial camera (former Rolleimetric) AIC-x4 are offered. These cameras are not offering homogenous virtual images as the DMC and UltraCam. A new situation now came with the development of large format monolithic CCDs. Based on this Z/I Imaging introduced now the DMC II 140, having 11712 x 11200 pixels on one CCD with 2 sec frame rate. In the fall the DMC II 230 (230 Mpix) and in the spring 2011 the DMC II 250 with 17216 x 14656 pixels with 1.7 sec frame rate will follow. This corresponds to the dream of photogrammetrists replacing the film just by one CCD. This reserch have been working with the early test flight data captured by the new Vexcel UltraCam D digital camera and the GPS / IMU position and attitude system into their aircraft, product range and photogrammetric work flow. This paper presents results from the early flight trials which have started to explore the potential of the UltraCam D digital camera. The quality of products produced from any imagery is often dependent on a variety of parameters and influences whether they have been produced from a digital or traditional film camera. The research is starting at the beginning of the photogrammetric processes by investigating initial results primarily from direct geo-referencing and aerial triangulation. The imagery was not taken specifically for the purpose of this scientific trial but the results are interesting and a further scientific trial is being planned.
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