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REDUCED UPDATED - Sky Watcher QUATTRO 8 - Modified w New Focuser, Secondary, Plate and Fan Assembly

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For sale is my Sky Watcher Quattro 8 that has been heavily modified. This scope will make great images. But, there has been a lot of work on it.

The focuser has been changed to a CYCK - on which you can mount a ZWO EAF (electronic automatic focuser). I changed the secondary to 1/12 wave and put in a new secondary holder (due to some of the nightmares about the OEM secondary eventually falling off). The primary mirror has been seated - without pinching it. I made a fan unit with a thermostat that can be run off an ZWO ASI AIR 12 volt port. It has Bob's Knobs for collimation. 

The fan unit can be removed. It is simply clamped on. 

The scope comes with a Telrad. 

The scope is pretty well collimated right now. Remember, this is a native f4 instrument, so be patient with the focusing. 

This comes in a new Pelican case. 

I am selling this for under value because it can now be your experiment. I bought this thing for $800 and sunk $600 to $800 into it (not including the new Pelican case), including countless hours, trying to get it to image well and keep good star shapes.  See attached images. 

I am also liquidating the remainder of my astrophotography gear. 

List of Astrophotography Equipment - Item and Asking Price (Updated 06/14/24 at 6:45am PDT):

Planetary Imaging:

1. QHYCCD QHY5III462c USB 3.0 High Speed Camera with IR/Cut and 850nm Passband Filters $119.00

One-Shot Color Cameras:

1. ZWO ASI120MC Non-Cooled Planetary/Guide Camera $59.00

Mono Cameras:

1. ZWO ASI533MM Pro Cooled Camera with Set of M48 Back-Spacing Couplers $589.00

Filters for One-Shot Color:

1. ZWO IR Cut Filter 2" $29.00

2. Optolong L-Pro Filter 2" $129.00

3. IDAS NBZ Nebula Booster 2" $149.00

4. IDAS NB1 Nebula Booster 2" $139.00

5. Baader IR Pass Filter 685nm 2" (good for planetary imaging) $109.00

6. Baader UV/IR Cut L-Filter CMOS Optimized 2" $69.00

Filter Wheel and Drawer:

1. ZWO Manual Filter Wheel (EFW) 5 Position for 1.25" Filters (probably no accessories) $69.00


1. Baader Newtonian Multi-Purpose Coma Corrector Mark III 2"   $109.00

2. Starizona SCT .63 Reducer Coma Corrector IV $319.00

3. Starizona APEX-ED (S) Reducer Flattener (for refractors under 500mm FL) $329.00

Optical Tube Assemblies (OTAs):

1. Sky-Watcher Quattro 8 (Heavily Modified - Experimental) in New Pelican Case $595.00

2. Celestron RASA 8 with Starizona Filter Holder, Dew Ring & Shield, ZWO EAF, Pelican Case with New Foam $1,575.00

3. Celestron C8 (vintage 1996) Black Tube with Bob's Knobs, Dew Heater Ring, Celestron Aluminum Dew Shield and Starizona Rear Cell Rotator in New Pelican Case  $579.00


1. Sky-Watcher EQM-35 Equatorial Mount with SynScan Hand-Controller with Tripod Bag and Tool Chest for Head (like new, never used) $669.00

Focusers and Parts: 

1. Baader Click-Lock Visual Back (SCT to Refractor Diagonal) $39.00

Make an offer!