Blue Fireball's T-05A adapter has a male 2" filter thread (M48x0.75) on one side and a male T / T2 thread (M42x0.75) on the other side.
This item is functionally the same as Blue Fireball's item # T-05 except that this has longer male threads on both sides.
- Total thickness = 12mm (0.47")
- Male T thread length = 5mm (0.2")
- Male M48 thread length = 5mm (0.2")
- Maximum outside diameter = 50.4mm (1.98") so this can slide into 2" focusers
- Optical length = 2mm (0.08")
- Weight = 0.3oz
- Made of black anodized aluminum
Blue Fireball part number: T-05A