Fo­cuser

Sky at Night Magazine - - OCTOBER / FIRST LIGHT -

A sim­ple, non-ro­tat­ing, dual-speed Cray­ford fo­cuser is fit­ted. Fo­cus­ing is a smooth process, but our test ver­sion slipped when used with a heavy cam­era or eyepiece and re­quired ad­just­ment. The lock­ing screw had the an­noy­ing habit of shift­ing fo­cus slightly when locked, which made as­tropho­tog­ra­phy in par­tic­u­lar more dif­fi­cult.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.