Blue Fireball SCT Female Thread to M48 (2" Filter) Male & T / T2 Female Thread Adapter

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This adapter has a 2" filter male thread (M48x0.75) as well as a T / T2 female thread (M42x0.75) on one side. It has an SCT female thread (2"x24TPI) on the other side. So this adapter can be used as (i) an SCT female to T / T2 female adapter, or as (ii) an SCT female to M48 male adapter.
Important note: Since this is a slim adapter with a short SCT female thread, this item may not work directly with the male SCT threads on the rear of telescopes or on SCT focal reducers since these typically have 2 or 3mm of unthreaded barrel before the threads start. With these items, this adapter's SCT female thread may not catch on.
Specifications:
- Total thickness = 8.5mm (0.33")
- Length of SCT female thread = 4mm (0.16")
- Length of M48 male thread = 4mm (0.16")
- Length of T / T2 female thread = 4.5mm (0.18")
- Maximum outside diameter = 55mm (2.17")
- Made of black anodized aluminum.
Blue Fireball part number: T-09-v2
Other Information
- Country of Manufacture: China
This adapter has a 2" filter male thread (M48x0.75) as well as a T / T2 female thread (M42x0.75) on one side. It has an SCT female thread (2"x24TPI) on the other side. So this adapter can be used as (i) an SCT female to T / T2 female adapter, or as (ii) an SCT female to M48 male adapter.
Important note: Since this is a slim adapter with a short SCT female thread, this item may not work directly with the male SCT threads on the rear of telescopes or on SCT focal reducers since these typically have 2 or 3mm of unthreaded barrel before the threads start. With these items, this adapter's SCT female thread may not catch on.
Specifications:
- Total thickness = 8.5mm (0.33")
- Length of SCT female thread = 4mm (0.16")
- Length of M48 male thread = 4mm (0.16")
- Length of T / T2 female thread = 4.5mm (0.18")
- Maximum outside diameter = 55mm (2.17")
- Made of black anodized aluminum.
Blue Fireball part number: T-09-v2
This adapter has a 2" filter male thread (M48x0.75) as well as a T / T2 female thread (M42x0.75) on one side. It has an SCT female thread (2"x24TPI) on the other side. So this adapter can be used as (i) an SCT female to T / T2 female adapter, or as (ii) an SCT female to M48 male adapter.
Important note: Since this is a slim adapter with a short SCT female thread, this item may not work directly with the male SCT threads on the rear of telescopes or on SCT focal reducers since these typically have 2 or 3mm of unthreaded barrel before the threads start. With these items, this adapter's SCT female thread may not catch on.
Specifications:
- Total thickness = 8.5mm (0.33")
- Length of SCT female thread = 4mm (0.16")
- Length of M48 male thread = 4mm (0.16")
- Length of T / T2 female thread = 4.5mm (0.18")
- Maximum outside diameter = 55mm (2.17")
- Made of black anodized aluminum.
Blue Fireball part number: T-09-v2
Other Information
- Country of Manufacture: China

Blue Fireball SCT Female Thread to M48 (2" Filter) Male & T / T2 Female Thread Adapter
