Tag: Crayford Focuser

iOptron 16-inch Photron Truss-Tube R-C.
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iOptron Introduces New Truss-Tube Photron Ritchey-Crétien Astrograph Telescopes

iOptron’s Photron line of Ritchey-Crétien astrograph telescopes has been expanded with the addition of four new truss-tube models (10-,12-, 14- and 16-inch – $2995, $4295, $5795 and $6995US, respectively). Designed for today’s astro imager, Photron truss-tube R-C telescopes deliver a sharp, clear image from edge to edge. Each of the […]