Blue Fireball SCT Thread Adapter for Maksutov-Cassegrain Telescopes
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
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.
Adapter ring to convert the thread on the rear cell of many Maksutov-Cassegrain telescopes (including some of those made by Celestron, Orion, Sky-Watcher and others) to an SCT (Schmidt-Cassegrain) thread. Allows you to use SCT threaded diagonals, visual backs, focal reducers and other accessories on your Mak-Cass telescope. Has female Maksutov-Cassegrain threads on the inside all the way through and male SCT threads on the outside at one end. Precision machined from aluminum and black anodized.
Please note that the focusing knob on some Mak telescopes is quite close to the rear cell and there is a possibility that a 2" accessory coupled with this adapter may not screw on to your scope since the focus knob gets in the way. Please measure the separation between the focus knob and the 2" accessory you plan to use to ensure that you will be able to use SCT accessories on your Mak using this adapter.
Note also that this adapter will NOT work with the Celestron NexStar, C-90, C-130 and Meade ETX series of telescopes since those do not use a standard Mak 44.5mm thread. Many of these other scopes use a smaller 35mm thread. So please make sure you measure your scope's thread diameter before purchasing this adapter to make sure it will fit.
This adapter also includes a rubber ring that is an SCT thread spacer. You will not need it for most applications, but should you find out that your SCT diagonal or other accessory does not lock when screwed into this adapter and keeps on spinning, just insert this into the female SCT thread of your accessory to resolve the issue. This will happen if the female SCT thread of your accessory is longer than the male SCT thread of this Blue Fireball adapter.
Specifications:
* Weight = 0.4oz
* Total length = 12.6mm (0.49")
* Maksutov thread = M44.5 x 1.0 Female
* SCT thread - 2" x 24TPI Male
Other Information
- Country of Manufacture: Canada
Adapter ring to convert the thread on the rear cell of many Maksutov-Cassegrain telescopes (including some of those made by Celestron, Orion, Sky-Watcher and others) to an SCT (Schmidt-Cassegrain) thread. Allows you to use SCT threaded diagonals, visual backs, focal reducers and other accessories on your Mak-Cass telescope. Has female Maksutov-Cassegrain threads on the inside all the way through and male SCT threads on the outside at one end. Precision machined from aluminum and black anodized.
Please note that the focusing knob on some Mak telescopes is quite close to the rear cell and there is a possibility that a 2" accessory coupled with this adapter may not screw on to your scope since the focus knob gets in the way. Please measure the separation between the focus knob and the 2" accessory you plan to use to ensure that you will be able to use SCT accessories on your Mak using this adapter.
Note also that this adapter will NOT work with the Celestron NexStar, C-90, C-130 and Meade ETX series of telescopes since those do not use a standard Mak 44.5mm thread. Many of these other scopes use a smaller 35mm thread. So please make sure you measure your scope's thread diameter before purchasing this adapter to make sure it will fit.
This adapter also includes a rubber ring that is an SCT thread spacer. You will not need it for most applications, but should you find out that your SCT diagonal or other accessory does not lock when screwed into this adapter and keeps on spinning, just insert this into the female SCT thread of your accessory to resolve the issue. This will happen if the female SCT thread of your accessory is longer than the male SCT thread of this Blue Fireball adapter.
Specifications:
* Weight = 0.4oz
* Total length = 12.6mm (0.49")
* Maksutov thread = M44.5 x 1.0 Female
* SCT thread - 2" x 24TPI Male
Adapter ring to convert the thread on the rear cell of many Maksutov-Cassegrain telescopes (including some of those made by Celestron, Orion, Sky-Watcher and others) to an SCT (Schmidt-Cassegrain) thread. Allows you to use SCT threaded diagonals, visual backs, focal reducers and other accessories on your Mak-Cass telescope. Has female Maksutov-Cassegrain threads on the inside all the way through and male SCT threads on the outside at one end. Precision machined from aluminum and black anodized.
Please note that the focusing knob on some Mak telescopes is quite close to the rear cell and there is a possibility that a 2" accessory coupled with this adapter may not screw on to your scope since the focus knob gets in the way. Please measure the separation between the focus knob and the 2" accessory you plan to use to ensure that you will be able to use SCT accessories on your Mak using this adapter.
Note also that this adapter will NOT work with the Celestron NexStar, C-90, C-130 and Meade ETX series of telescopes since those do not use a standard Mak 44.5mm thread. Many of these other scopes use a smaller 35mm thread. So please make sure you measure your scope's thread diameter before purchasing this adapter to make sure it will fit.
This adapter also includes a rubber ring that is an SCT thread spacer. You will not need it for most applications, but should you find out that your SCT diagonal or other accessory does not lock when screwed into this adapter and keeps on spinning, just insert this into the female SCT thread of your accessory to resolve the issue. This will happen if the female SCT thread of your accessory is longer than the male SCT thread of this Blue Fireball adapter.
Specifications:
* Weight = 0.4oz
* Total length = 12.6mm (0.49")
* Maksutov thread = M44.5 x 1.0 Female
* SCT thread - 2" x 24TPI Male
Other Information
- Country of Manufacture: Canada