Blue Fireball Dual 2" Filter Chamber Adapter - For SCTs
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Description/Uses:
- Unique patent pending, two-part adapter from Blue Fireball that allows you to include up to two mounted 2" astronomical filters (with M48 threads) in your optical path on Schmidt-Cassegrain or variant telescopes.
- Innovative way to use your 2" filters with your SCT for imaging or visual applications when you cannot accommodate the 2" filters elsewhere.
- The 2" filters are held securely inside an internal chamber. Use one variable polarizing filter or up to two single filters (for example, a UV-IR Cut filter coupled with a broadband or narrowband filter for imaging applications). Total stacked length of the filter cells (excluding male threads) can be up to 17mm.
- Large inside diameter allows you to comfortably insert your fingers for insertion or removal of filters.
- With this adapter, you can use one or two 2" filters in the following example applications:
- With your OEM 1.25" visual back and 1.25" diagonal
- With your 0.63x SCT focal reducer
- With your SCT-T thread adapter for imaging applications
- With your 2" SCT diagonal or external SCT focuser if you cannot insert your 2" filters on the eyepiece end
How to Use:
- Unscrew the two parts (# F-04 and # F-24) completely
- Thread the shorter Chamber Cover adapter (# F-04) on to the 2"x24TPI male SCT thread on the rear of your telescope
- Thread one or two 2" astronomical filters into the M48 female thread inside the longer Filter Chamber adapter (# F-24)
- Screw the Filter Chamber adapter (containing your 2" filter(s)) back on to the Chamber Cover adapter completely
- Attach your SCT visual back, SCT diagonal, SCT-T imaging adapter, SCT focal reducer or other SCT threaded accessories on to the male SCT thread on the Filter Chamber adapter
Features:
- Precision machined, black anodized aluminum
- Large knurled grip pattern on the outside
- Heavy-duty construction to handle heavy loads
Specifications:
Combined Adapter (# F-04 plus # F-24)
- Weight = 5.5oz
- Total length = 37.5mm (1.48")
- Length of female SCT thread = 8mm (0.31")
- Female SCT thread specification = 2"x24TPI
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Female SCT thread specification = 2"x24TPI
- Length of internal M48 female filter thread = 4mm (0.16")
- Female M48 thread specification = M48x0.75
- Optical length = 30mm (1.18")
- Clear aperture = 44mm (1.73")
- Maximum outside diameter = 80mm (3.15")
Single Adapter (# F-04)
- Weight = 2.3oz
- Total length = 14mm (0.55")
- Length of female SCT thread = 8mm (0.31")
- Female SCT thread specification = 2"x24TPI
- Length of male M72 thread (including unthreaded undercut) = 6mm (0.24")
- Male thread specification = M72x1.0
- Clear aperture = 49.6mm (1.95")
- Maximum outside diameter = 80mm (3.15")
Single Adapter (# F-24)
- Weight = 3.2oz
- Total length = 29.5mm (1.14")
- Length of female M72 thread (including unthreaded undercut) = 17mm (0.67")
- Male thread specification = M72x1.0
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Female SCT thread specification = 2"x24TPI
- Length of female M48 thread = 4mm (0.16")
- Female M48 thread specification = M48x0.75
- Clear aperture = 44mm (1.73")
- Maximum outside diameter = 80mm (3.15")
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Description/Uses:
- Unique patent pending, two-part adapter from Blue Fireball that allows you to include up to two mounted 2" astronomical filters (with M48 threads) in your optical path on Schmidt-Cassegrain or variant telescopes.
- Innovative way to use your 2" filters with your SCT for imaging or visual applications when you cannot accommodate the 2" filters elsewhere.
- The 2" filters are held securely inside an internal chamber. Use one variable polarizing filter or up to two single filters (for example, a UV-IR Cut filter coupled with a broadband or narrowband filter for imaging applications). Total stacked length of the filter cells (excluding male threads) can be up to 17mm.
- Large inside diameter allows you to comfortably insert your fingers for insertion or removal of filters.
- With this adapter, you can use one or two 2" filters in the following example applications:
- With your OEM 1.25" visual back and 1.25" diagonal
- With your 0.63x SCT focal reducer
- With your SCT-T thread adapter for imaging applications
- With your 2" SCT diagonal or external SCT focuser if you cannot insert your 2" filters on the eyepiece end
How to Use:
- Unscrew the two parts (# F-04 and # F-24) completely
- Thread the shorter Chamber Cover adapter (# F-04) on to the 2"x24TPI male SCT thread on the rear of your telescope
- Thread one or two 2" astronomical filters into the M48 female thread inside the longer Filter Chamber adapter (# F-24)
- Screw the Filter Chamber adapter (containing your 2" filter(s)) back on to the Chamber Cover adapter completely
- Attach your SCT visual back, SCT diagonal, SCT-T imaging adapter, SCT focal reducer or other SCT threaded accessories on to the male SCT thread on the Filter Chamber adapter
Features:
- Precision machined, black anodized aluminum
- Large knurled grip pattern on the outside
- Heavy-duty construction to handle heavy loads
Specifications:
Combined Adapter (# F-04 plus # F-24)
- Weight = 5.5oz
- Total length = 37.5mm (1.48")
- Length of female SCT thread = 8mm (0.31")
- Female SCT thread specification = 2"x24TPI
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Female SCT thread specification = 2"x24TPI
- Length of internal M48 female filter thread = 4mm (0.16")
- Female M48 thread specification = M48x0.75
- Optical length = 30mm (1.18")
- Clear aperture = 44mm (1.73")
- Maximum outside diameter = 80mm (3.15")
Single Adapter (# F-04)
- Weight = 2.3oz
- Total length = 14mm (0.55")
- Length of female SCT thread = 8mm (0.31")
- Female SCT thread specification = 2"x24TPI
- Length of male M72 thread (including unthreaded undercut) = 6mm (0.24")
- Male thread specification = M72x1.0
- Clear aperture = 49.6mm (1.95")
- Maximum outside diameter = 80mm (3.15")
Single Adapter (# F-24)
- Weight = 3.2oz
- Total length = 29.5mm (1.14")
- Length of female M72 thread (including unthreaded undercut) = 17mm (0.67")
- Male thread specification = M72x1.0
- Length of male SCT thread (including unthreaded undercut) = 7.5mm (0.3")
- Female SCT thread specification = 2"x24TPI
- Length of female M48 thread = 4mm (0.16")
- Female M48 thread specification = M48x0.75
- Clear aperture = 44mm (1.73")
- Maximum outside diameter = 80mm (3.15")
| Product Banner Type | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Blue Fireball Dual 2" Filter Chamber Adapter - For SCTs # F-34