1.25" Replacement female bottom cap for the Quark Learn More

For adapting the TeleVue Powermate to Quantum or ION filters. Makes your optics train much shorter. Learn More

For adapting the TeleVue Powermate to Quantum or ION filters. Makes your optics train much shorter. Learn More

For adapting the TeleVue 4X Powermate to Quantum or ION filters. Makes your optics train much shorter. Learn More

It blocks the heat from reaching your filter and diagonal. Learn More

This 2" eyepiece holder threads into the top of your Quark after removing the 1.25" adapter that come standard with every Quark. Learn More

5V, 22 Amp hour battery pack. Learn More

The UV-IR Blocker lets the full range of sensitivity of the human eye (according to DIN 5031) pass, and blocks all other parts of the spectrum in the UV and IR. Learn More

Upgrade /repair of older DayStar ATM, University housing to new style Quantum Electronic Control housing.

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Q3RFCTM REAR, RED Side Plate Fits Quantums. Has Combo choice w/ Male and Female threads. Q3RFCTM:Female T thread / Male 2" x 24 for use with RF2D2 or GF2SCTT. Note: Photo shown is of Q3RFC1M. This product, the Q3RFCTM, has a female T thread instead of the 1.375x24 thread shown in the photo. Learn More