Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.
William Optics Flattener 6AIII (P-FLAT6AIII)
206.51 € net price (non-EU countries)
Anatolii Livashevskyi
Product Manager
/ 
+48721808900
+48721808900
+48721808900
[email protected]
Description
William Optics Flat 6A III Field Flattener and Focal Reducer
The William Optics Flat 6A III Field Flattener is an essential accessory for astrophotographers seeking to achieve unmatched image quality. Designed to eliminate distortions inherent in refractor optical systems, this flattener ensures sharpness and clarity from the center to the edge of your frame, preserving the integrity of your celestial captures.
Features
- Focal Length Reduction: Shortens the focal length by 0.8x, enhancing the field of view.
- Wide Compatibility: Provides a 44 mm illumination circle, perfect for full-frame DSLRs and mirrorless cameras.
- Easy Camera Integration: Compatible with M48x0.75 ring adapters for M4/3, Sony α, Nikon, Pentax, Canon, and Fuji systems.
Compatibility
This flattener is compatible with several William Optics telescopes:
- GT 71
- GT 81
- ZenithStar 81
- ZenithStar 103
Correction Distances
For specific telescope models, the correction distances are:
- GT 71: 9.1 mm
- GT 81: 7.1 mm
- ZenithStar 81: 5.2 mm
- ZenithStar 103: 2.5 mm
Back Focus Distances
The back focus distances for optimal performance:
- GT 71: 64.1 mm
- GT 81: 62.1 mm
- ZenithStar 81: 60.2 mm
- ZenithStar 103: 57.5 mm
Full Illumination Circle Diameter
- GT 71: 44.4 mm
- GT 81: 44.4 mm
- ZenithStar 81: 44.3 mm
- ZenithStar 103: 43.1 mm
Technical Specifications
- Focal Length Reduction: 0.8x
- Telescope Mount Thread: M63
- Camera Mount Thread: M48
- Filter Mounting: Compatible with M48 thread filters
What's Included
- William Optics Flat 6A III Flattener
Enjoy peace of mind with a comprehensive 24-month warranty.
This description is formatted for easy reading and highlights key features and specifications, making it user-friendly for potential buyers.Data sheet
Official permits of the Ministry of Development and Technology
Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.