Fits: Celestron 5” (13 cm) f/10 SCT (C5, NexStar 5) with black Allen, silver Allen, or silver Phillips factory collimation screws. These screws have standard threads. Will not fit scopes with black Phillips factory collimation screws
Fits: Celestron 8” (20 cm) f/10 post-1980 SCT with factory Allen or silver Phillips collimation screws, with or without Fastar secondary with silver collimation screws (C8 black, or gray; Ultima 2000; NexStar 8; others). This includes the post-2000 orange-tube. Will not fit pre-1980 orange tube or most scopes with black Phillips factory collimation screws.
Fits: Celestron 9.25” (23.5 cm) f/10 SCT versions with standard collimation screw threads (not for CPC 925 or EdgeHD). Knobs: Black plastic, 16 mm (5/8”) diameter Threads: Black anodized aluminum alloy
Fits: Celestron Starhopper 12” (30 cm) f/5 Newtonian telescopes Primary mirror springs as supplied by the factory can sag from the weight of the mirror cell. Our stainless steel replacement springs are stronger and provide adequate support
Fits: Meade 8” (20 cm) f/10 SCT versions with three screws on the secondary housing (2080, LX5, LX10, LX50, LX90, LX100, LX200, others) Knobs: Black plastic, 13 mm (1/2”) diameter Threads: Black anodized aluminum alloy