Assertion: eyepiece's design | /r/HasProperty | free
Facets:
value: in its best form
type: OTHER
value: from ghost reflections
type: OTHER
Source sentences:
text: This design, like the solid eyepiece designs of Robert Tolles, Charles S. Hastings, and E. Wilfred Taylor, is free from ghost reflections and gives a bright contrasty image, a desirable feature when it was invented (before anti-reflective coatings).
text: In its best form, this design is distortion free, and has no detectable lateral colour, even at f/4.