William Optics Zenithstar ZS 61 II APO (dublet APO FPL53 61 mm f/5,9, 2" R&P, Space Gray, SKU: A-Z61II)

The William Optics ZS61 ED refractor is a remarkable optical instrument that utilizes a synthetic fluorite doublet. Despite its lower price, this type of refractor delivers performance comparable to expensive APO triplets. The core of this telescope is a two-element lens with a diameter of 61 mm and features FPL53 glass, providing excellent light transmission at a focal ratio of f/5.9.

Equipped with a reliable 2-inch Rack and Pinion focuser, boasting a smooth and stable operation with a 10:1 microfocusing capability, the ZS61 ensures precise adjustments for your observing needs. The tube includes convenient features such as a retractable dew shield and a mounting foot following the Vixen standard. William Optics has long been renowned for their exceptional fit and finish, and the ZS61 refractor exemplifies this commitment to quality.

This exceptional equipment is highly recommended for astrophotography, particularly in wide-field imaging, and it is equally suitable for observation and digiscoping purposes. Whether you are capturing breathtaking images of the night sky or observing celestial wonders, the ZS61 will meet your expectations.

Technical Specifications:

• Optical Design: Apo FPL53 doublet
• Aperture: 61 mm
• Focal Ratio: f/5.9
• Focal Length: 360 mm
• Retractable Dew Shield: Included
• Dovetail Rail: Included
• Finder Holder: Included, also serves as a carrying handle
• Bahtinov's Mask: Included
• Soft Bag with Padding: Included
• Focuser: 2" Rack and Pinion, 1.25" adapter, 10:1 microfocusing
• Recommended Flattener: FLAT 61A, FLAT61 R
• Compatible with APS-C and Full-Frame cameras (produces a 43 mm diameter image circle)
• Length: 245 - 315 mm (depending on the position of the dew shield)
• Weight: 1.45 kg

Warranty:

The ZS61 refractor comes with a 2-year warranty, ensuring peace of mind and support for your astronomical endeavors.