Why do I need the Explore Scientific Counterweight Set for my Truss Tube Dob?
You need this set to maintain proper balance when using heavy accessories on the front of your telescope. Items like 2-inch eyepieces, coma correctors (e.g., Paracorr), finderscopes, or cameras can make the tube front-heavy, causing it to drift downwards. This set adds weight to the back of the telescope to counteract that, ensuring smooth and stable movement.
Which Explore Scientific telescopes is this counterweight set compatible with?
This counterweight set is specifically designed for the following Explore Scientific Truss Tube Dobsonian models:
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10" Truss Tube Dobsonian (DOB1045-00)
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12" Truss Tube Dobsonian (DOB1245-00)
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16" Truss Tube Dobsonian (DOB1645-00)
How do I install the Explore Scientific Counterweight Set?
Installation is simple. On the rear of the primary mirror box, locate and remove the rubber stopper. Insert the counterweight shaft through the hole and secure it from the inside using the provided nut and washer. You can then slide the counterweights onto the shaft.
Will this counterweight set help if I add a large finder scope to my 12" ES Truss Dob?
Yes, absolutely. A large 8x50 or 9x50 finder scope adds significant weight to the upper tube assembly. This counterweight set is the ideal solution to re-balance your 12" ES Truss Dobsonian after such an upgrade, preventing the tube from dipping down during use.
My 16" ES Truss Dob drifts down when I use my heavy 2" eyepiece collection. Is this the right solution?
Yes, this is precisely what the counterweight set is for. A collection of premium 2" eyepieces often creates a noticeable imbalance on a large instrument like the 16" ES Truss Dob. This set will provide the necessary counterbalance to keep the telescope perfectly stable, regardless of which eyepiece you have in the focuser.
Can I use just one of the two counterweights from the Explore Scientific set?
Yes. The set includes two counterweights, allowing you to customize the amount of balance for your specific setup. For lighter loads, using a single weight may be sufficient, while for very heavy accessory combinations, you would use both.
