Dressler M, Rassow B, Wesemann W
Klin Monbl Augenheilkd. 1979 Aug;175(2):255-61.
A Topcon Retinal Camera TRC-FET 3 was tested for several weeks under laboratory and clinical routine conditions. The optical properties turned out as good and meet the requirements for retinal cameras in all details. Remarkable is the high speed of the imaging system, which allows working with low flash energies and with high flash frequency. The resolving power is high (8 microns at the center) and decreases slowly to the periphery. The illumination of the fundus is fairly homogeneous. Many filters of good performance are provided. There was no problem in handling the camera, and the test photographs as well as the clinical routine photographs were of high quality.
一台拓普康视网膜相机TRC-FET 3在实验室和临床常规条件下进行了数周测试。其光学性能良好，在所有细节方面均符合视网膜相机的要求。值得注意的是成像系统速度快，能够在低闪光能量和高闪光频率下工作。分辨率很高（中心处为8微米），向周边缓慢降低。眼底照明相当均匀。提供了许多性能良好的滤光片。操作相机没有问题，测试照片和临床常规照片质量都很高。
