FLT 156
William Optics
From ~$7,824.17
4 stores
The William Optics Fluorostar 156 (FLT 156) is a premium apochromatic refractor designed for both avid stargazers and serious astrophotographers, featuring a 156mm aperture and 1217mm focal length (f/7.8). This air-spaced triplet lens with premium FPL-53 glass and Lanthanum glass delivers razor-sharp, color-pure images with virtually eliminated chromatic aberration. Equipped with a 3.7" Rack & Pinion Focuser and featuring a Bahtinov Mask integrated into the dust cover, three anodized CNC-made tube rings, and a robust Losmandy-type dovetail bar, it's well-suited for both visual observation and deep-sky astrophotography with excellent optical performance across full-frame imaging sensors.
Astronomy Plus
Fluorostar 156 with 3.7" Rack & Pinion Focuser
Worldwide shipping
CA$10,653.00
~$7,824.17
Agena Astro
William Optics Fluorostar 156mm f/7.8 Triplet APO Refractor - Gray
Worldwide shipping
$8,998.00
High Point Scientific
FLT 156 - 6" f/7.8 Fluorostar APO Triplet Refractor - 3.7" Rack & Pinion Focuser - Space Grey
Ships to US only
$8,998.00
Astroshop.eu
Apochromatic refractor AP 156/1217 Fluorostar Gray OTA
Worldwide shipping
€8,190.00
~$9,722.18
Specifications
| Aperture | 156 mm |
| Focuser Type | 3.7 inch Rack & Pinion Dual-Speed |
| Extended Tube Length | 1330 in |
| Focal length | 1217 mm |
| Back Focus | 65.3 mm |
| Magnitude Limit | 12.8 |
| Mount type | Losmandy Standard Rail |
| Finder Foot | Vixen |
| Optical design | Air-spaced Triplet APO |
| Resolving Power | 0.88″ |
| Focal ratio | f/7.8 |
| Tube Weight | 17 lb |
| Maximum Useful Magnification | 312 |
| Glass Elements | FPL-53, Lanthanum |
| Folded Tube Length | 1120 mm |
| Image Circle | 44.4 mm |