10" f/4 Imaging Newtonian OTA - 10F4N
Apertura
From $799.95
2 stores
In stock
The Apertura 10" f/4 Imaging Newtonian OTA is a fast, large-aperture reflector built for deep-sky astrophotography. Its diffraction-limited parabolic primary mirror, paired with an optional coma corrector, delivers sharp, wide-field images. The 3.3" linear-bearing Crayford focuser offers dual-speed control with rock-solid stability for heavy imaging setups. Features include a built-in cooling fan for quicker thermal adjustment, an extended tube for improved contrast, and a flat black interior to reduce stray reflections.
Specifications
| Focuser Dual Speed | 1:10 |
| Focal ratio | f/4 |
| Collimation Knobs | 6 |
| Dovetail Type | Vixen-style |
| Tube Material | Rolled Steel |
| Finderscope | 8x50 |
| Optical Tube Length | 38.5 mm |
| OTA Diameter | 11.875 cm |
| Primary Mirror | Parabolic |
| Cooling Fan | ✓ |
| Focal length | 1016 mm |
| Focuser Type | 3.3 inch Crayford |
| Aperture | 10 mm |
| Weight | 29.25 lb |
| Focuser Travel | 2 mm |
| Secondary Mirror Vanes | 4 |