The Kwik Focus projects three distinct images of the star, or the object framed in the telescope, visible on the screen focus of the camera, the CCD chip or eyepiece. As you approach the correct position of focus, the three images are close to coincide. Unlike other systems focus on the market, you can use the Moon, a planet or any other object at least sixth magnitude to achieve the focus corretta.Potete also leave it mounted on the telescope when you look very bright objects like the Moon avoid using a neutral density filter to darken the image.
Other advantages of this accessory are:
facilitating the resolution of double stars
eliminate the diffraction of the secondary mirror of SCT and Newtonian < li> eliminate most of the problems caused by those mirrors that have errors or zonal edges clinched
can be used as a mask off-axis to lessen the effects of bad seeing / When ordering, specify brand and model for your telescope.