I'm currently keeping an eye out for some models of stereo cameras I'd like to add to my collection and test out in use. I'm interested in the cameras that RBT was making until they stopped around 2011. If you have a good RBT model in fully functioning order with good glass, please let me know. I'm especially interested in the rangefinder models that they made. I believe those would be S1, S2, S2a, S3, and S3a models, each built on various Konica Hexar, Voigtlander Bessa, and Zeiss bodies. If you have anything that you think I may be interested in, please send me a private message with pictures, detailed condition, and your asking price. Thank you!