Cranz-Schardin camera of 8 frames constructed of department store optics and hobbyist electronics

Olin K. McDaniel III

doi:10.1117/12.145837

1 January 1993 Cranz-Schardin camera of 8 frames constructed of department store optics and hobbyist electronics

Olin K. McDaniel III

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145837
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

A Cranz-Schardin camera with independently adjustable inter-frame times from 100 microseconds to less than 1 microsecond is described. The flash system is the classical LC spark and delay approach used by Cranz and Schardin. The capacitors are 0.06 microfarad units charged to only 7000 volts, allowing the use of commercially available flash lamp trigger transformers as delay inductors for the longer times. Shorter delays are achieved with homemade vacuum potted coils. The field element may be a telescope achromat, a Fresnel lens, or alternately a concave mirror. The camera lenses are standard achromats or simple meniscus lenses sold by optics supply houses. Mounted on the lensboard of a Calumet 4 inch by 5 inch view camera, the optics train is simply installed in the camera. The front end of the camera may be raised to bring the lens apertures into position to act as schlieren stops. Photos of resolution charts are shown to demonstrate the camera.

Citation Download Citation

Olin K. McDaniel III "Cranz-Schardin camera of 8 frames constructed of department store optics and hobbyist electronics", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145837

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