F9110A extension tube with M42 female thread can be used to connect SV28 spotting scope with astronomy camera, such as SV105, you just need another M42 adapter W2787A, we sold separately.
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1. Svbony F9110A has an M42 female thread, it can be connected with an SV28 spotting scope, it has an M42 male thread, which can be connected with a camera adapter with an M42 female thread, such as W1077A and W2054A, we sold separately
2. This adapter can be used to connect SV28 and astronomy camera to view more details about the moon or other planets