PENTAX 105SD; D=105mm, F,L=1000mm ( F= 9.5) Weight; about 4.5kg ( including clamshell) ( in 1990 years model ) PENTAX 's all Telescopes are designed for both visual and imaging. However,except this 105SD, others are including flattener lens. It's for ...
Pentax 75 SDHF First Light - Spektrum der Wissenschaft