Saturday, June 09, 2012

rear doublet confirmed

Phil, Tim L, and I confirmed the design of the Tele Vue 101. There is a back element, a doublet, referred to as the telecompressor/field flattener.

Phil said this was a feature of the Petzval. Tim was relieved that he didn't clean something that didn't exist. So was I. Still, Tim thought only the NP-101 had this.

No comments: