Alternative reducer (telecompressor) for the AP155 EFS f/7

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DrTAV avatar

Alternative to the Astro-Physics QUADTCC-155. Astro-Physics has discontinued production of the QUADTCC and the QUADTCC-155. The latter was specifically made for the AP155 EFS f/7 FL1085. Has anyone tried other reducers (telecompressor) correctors with the AP155? If you have a QUADTCC-155 you’re willing to sell?

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alpheratz06 avatar

what about the APM reducers?

alpheratz06 avatar

alpheratz06 · Dec 19, 2025, 04:38 PM

what about the APM reducers?

DrTAV avatar

Yes, the APM- Riccardi APO-Reducer is likely the best substitute but it’s a roll of the dice as to whether it will yield acceptable results out to the edges. Most owners of the AP155 are likely using the QUADTCC-155 (AP says the regular QUADTCC won’t work well) and so there’s no posted experience with other telecompressors anywhere. Had a WTB ad on Astromart forever. Thanks for commenting.