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Coronado SolarMax 90 with T-Max tuner and BF-15 blocking filter, American Made Sold!

Price - $1,600.00

Ad Number: 183169

Posted: 12 Sep 2019

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I have for sale my Coronado SolarMax 90 H-alpha Filter with T-Max tuner and BF-15 blocking filter.
The filter is in excellent condition and has had very little use. This is one of the American made Coronado filters manufactured before Cornoado moved their manufacturing to Mexico.

I’m including a 1.25” Baader UV/IR filter which has always been attached to the Blocking filter to protect it from any UV damage.
These American made filters have a reputation for superior performance compared to other filters of this type.

This comes with all end caps and a hard case. The end caps are machined covers which screw in both ends to protect the main Etalon. I also have the original Coronado shipping box since I am the original owner.

I will also include one Aluminum Coronado telescope adapter as part of the package, I have several which fit a variety of telescopes. You can see one of these filters on my Skywatcher 120ED Photo.

One Adapter is the size that would normally fit scopes like a Takahashi TSA-102, FS-102, SkyWatcher 120ED, Orion ST 120, and other scopes with this size dew shield. I’ve also made spacers so this filter will fit the Orion 100mm F6, Astrotech 102ED and Astrotech 92 Triplet. These are all the scopes I know will fit this adapter.

I also have another adapter which was bought for my TOA-130 but it also fits the Celestron 150 F/5 and Celestron C6R.

I also have a machined screw on adapter from PreciseParts that allows you to screw in the Etalon directly into a TV-85. You can see this on my TV-85 Photo.
This Etalon also has the same threads for screwing directly into a TV-NP-101 and TV-102 without needing any additional adapters.

I’m asking $1600.00 OBO for this package and will ship and insure this for this price anywhere in the Continental USA. Paypal is the preferred method of Payment but I’m open to suggestions.

If you have any questions about any of this, please feel free to ask.
This Sale is only for the SM-90 Etalon, Blocking filter and T-Max tuner. Telescopes and mounts included in some of these photos is not included.
Thanks for your time in reading this ad.

Ralph in Sacramento


  • Condition Excellent
  • Location Sacramento, Calif

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