SPUR UFG Kit III (2x UFG 120 + 2 x 50 ml UFG-1 developer)

The new SPUR UFG film with the new adapted developer SPUR UFG-1.

SPUR UFG film is an extremely fine-grained film with a variable sensitivity from ISO 40/17° to ISO 80/20°, pushable up to ISO 160/23°, due to the aforementioned new developer SPUR UFG-1.

The spectral sensitization goes far into the red range and allows the film to be used as an infrared substitute film. The resolution of the film stock is 287 LP/mm at a contrast of 1000 : 1 and 101 LP/mm at a contrast of 1.6 : 1, measured when developed with a high-contrast air-image developer. Thus, the resolution is higher than that of the best fine-grain brand films (e.g. Kodak Tmax 100, Ilford Delta 100 u. Fuji Acros 100 II). Initially, the film will only be available as 35mm film, but if the new process is successfully introduced, it may later also be available as roll film.

Due to the extremely high fine grain, very high sharpness cannot be achieved with conventional image-wise developers (even with SPUR developers), and the characteristic curve also leaves a lot to be desired when using conventional developers. This is because the film was originally developed for aerial photogrammetry rather than imagewise purposes. Therefore, SPUR has "tailored" this film emulsion to a special developer for imaging purposes, so to speak, which completely eliminates the aforementioned problems. With the new two-component developer SPUR UFG-1, high sharpness and high resolution are achieved while maintaining the extreme fine grain, and the characteristic curve is also corrected and improved.