How to Use "refractor" with Example Sentences

1. Chromatic aberration -- usually associated with objective lenses of refractor telescopes , is the failure of a lens to bring light of different wavelengths ( colors ) to a common focus .

2. Photo details : I captured these white light images using a lunt herschel solar wedge filter setup ; 80mm university optics refractor ; 2x barlow lens ; dmk ( 21 + 31 ) fire wire cameras ; 1 / 1000 sec .