SKYWATCHER PHOTOGRAPHIC NEWTONIAN 250 F/4.7 small case Dust on the sensor window

Dust on the sensor window (seen as 'donut' shaped spots on the image)

375 with the advantage of shortening the exposure time and extending the field of view

The Geoptik transport bag for 9

Construction material Anodized aluminium

SKYWATCHER PHOTOGRAPHIC NEWTONIAN 250 F/4.7 small case Dust on the sensor windowThe SkyWatcher 250 f 5 photographic Newtonian telescope is optimized for astrophotography. In fact, its oversized secondary mirror provides a large illuminated field that is ideal for large camera sensors. This telescope has a fast f 5 focal ratio and while the coma is still visible, it is 36% lower than the coma in a Newtonian f 4. This allows for the use of the photographic reflector on visual observations and high resolution imaging of planets and