Optics

• WHT f/2.8 corrected prime focus
• WHT f/11 Cassegrain focus
• WHT f/11 Nasmyth focus direct
• WHT f/11 Nasmyth focus with optical image derotator
• WHT f/11 Nasmyth focus with infrared image derotator
• INT f/3.3 prime focus
• INT f/15 Cassegrain focus
• JKT f/15 Cassegrain focus
• JKT f/8.06 wide field Cassegrain focus