William Optics Zenithstar ZS 61 II APO (dublet APO FPL53 61 mm f/5,9, 2" R&P, gold, SKU: A-Z61IIGD)

The William Optics ZS61 ED refractor is an exceptional optical instrument that utilizes a synthetic fluorite doublet. This type of refractor delivers performance on par with expensive APO triplets, but at a considerably lower price point. At the core of this impressive telescope lies a two-element lens with a diameter of 61 mm, featuring FPL53 glass and a fast focal ratio of f/5.9.

One notable feature of the ZS61 is its high-quality 2-inch Rack and Pinion focuser with a 10:1 microfocusing ratio. This smooth and stable focuser provides precise control, ensuring reliable and accurate adjustments during observations and astrophotography sessions.

Designed with versatility in mind, the ZS61 refractor is equipped with a retractable dew shield and a Vixen-style mounting foot. The superb fit and finish, which have become synonymous with William Optics products, further enhance the overall quality of this telescope.

The ZS61 refractor is an excellent choice for astrophotography enthusiasts, particularly for wide-field imaging. Additionally, it serves admirably as an observation telescope and for digiscoping purposes.

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 functions as a carrying handle
• Bahtinov Mask: Included
• Soft Bag with Padded Inserts: Included
• Focuser: 2" Rack and Pinion with 1.25" adapter, 10:1 microfocuser
• Recommended Flattener: FLAT 61A, FLAT61 R
• Compatible Sensor Size: APS-C, Full Frame (provides a 43 mm diameter image circle)
• Length: 245 - 315 mm (depending on the dew shield position)
• Weight: 1.45 kg

Guarantee:

The ZS61 refractor comes with a comprehensive 2-year warranty, providing peace of mind for your astronomical adventures.