APM RICCARDI APO 1x FLATTENER FOR LONG REFRACTORS Linear 2 x S-FPL53 lenses

2 x S-FPL53 lenses

not the diameter of the lens

5" LP focuser to the M117 thread of GSO/Orion/TPO Ritchey-Chretien 10"

ESATTO has a M81x1 male thread to connect and manually rotate many cameras and accessories by adding the optional adapters with stop rings

APM RICCARDI APO 1x FLATTENER FOR LONG REFRACTORS Linear 2 x S-FPL53 lensesThe APM Riccardi 1. 0x Apo Flattener Model 2 is a high quality triplet ED flattener for long apochromatic refractors. This model is suitable for refactors with focal ratios from f 7 and slower and focal lengths above 1000mm. Designed by legendary optical designer Massimo Riccardi, this flattener provides a fully illuminated field of 60mm. It features exceptionally good correction of longitudinal and transverse aberrations with truly apochromatic