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.
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.
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.
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