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Permits very precise focusing. You can easily identify the optimal focus position
Permits very precise focusing. You can easily identify the optimal focus position
Permits very precise focusing. You can easily identify the optimal focus position
Permits very precise focusing. You can easily identify the optimal focus position
Permits very precise focusing. You can easily identify the optimal focus position
Permits very precise focusing. You can easily identify the optimal focus position
Reduces the focal length of telescopes with the factor 0.67x, thus allowing shorter exposure times.
The ring is simply slipped over the male M48 thread of the adapter
The ring is simply slipped over the male M48 thread of the adapter
The ring is simply slipped over the male M48 thread of the adapter
The ring is simply slipped over the male M48 thread of the adapter
Stainless steel ring for exact adjustment of the distance, e.g. from corrector to camera