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1.25 " 45 Deg. Erecting Prism


The New William Optics 1.25" 45º Erecting Prism William Optics new 45 EP will work with any 1.25" eyepieces and scopes with 1.25" eyepiece holders. It will turn upside down images right side-up and give correct left-to-right image. This high-quality, low-cost erecting prism will set the standard in erecting...

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1.25" Dura Bright Dielectric Diagonal


The New William Optics 1.25" Dura Bright Dielectric Carbon Fibre Diagonal Introducing New 2014 model William Optics Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals! This 90 1.25"mirror-type star diagonal has a Dura-Bright thick mirror and dielectric mirror coatings...

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2" Dura Bright Carbon Fibre Diagonal


The New William Optics 2015 model Dura Bright Carbon Fibre Star Diagonal 99% Dielectric Ultra High Dielectric 99% reflectivity. Precision 1/10 lambda surface with NEW (12mm thickness mirror) for best quality. 2"- 1.25" adapter with brass clamping ring, also includes (2 thumb screws) at 120 degree apart...

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2" 45 Deg. Erecting Prism


The New William Optics 2" 45º Erecting Prism New Improved 2 Inch 45 Degree Erecting Prism. Another beautiful product exclusively from WO. This 2" 45 deg. erecting prism will scream to be used with that nice premium refractor of yours! Perfect for daytime observations too. Prism High quality BAK4 with...

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