Blue Fireball Dual 2" Filter Chamber Adapter - For SCTs
Sku:
PAAR-BF-F-34
Mfg #:
F-34
Item Can Ship:
Worldwide
The price depends on the chosen options
Free Shipping | Ships Same or Next Business Day
Final product price
In Stock
(10+ Available)
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
SKU:
PAAR-BF-F-34
Mfg #:
F-34
Item Can Ship:
Worldwide
Description
Description
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")
Other Information
- Country of Manufacture: China
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")
Read Full Description
Reviews / Q&A
Reviews / Q&A
Description
Reviews / Q&A
Description
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")
Other Information
- Country of Manufacture: China
Reviews / Q&A
Blue Fireball Dual 2" Filter Chamber Adapter - For SCTs