William Optics 0.8x Flattener/Reducer for Fluorostar 91 (P-FLAT6AIII-M92)

All New Adjustable Flat6AIII with M92 thread adapter for use with the new WO FLT91 telescope (M48-threaded T-mount not included). This is the same item as the P-FLAT6AIII reducer/flattener sold for other WO telescopes with the addition of an M92-M63 adapter to adapt the Flat6AIII to the M92 threads on the rear of the FLT91.

This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors, including the new FLT91 telescope. WO Flat 6AIII will provide good illumination and flat field across 97% of full frame sized sensors.

Full frame size

• Designed with nearly Full frame chip-size DSLR cameras in mind.
• FMC triplet APO design.
• Produced entirely with the best Ohara optical glasses.

Amazing

• Reducing factor 0.8X.
• Adjustable design, for perfect back focus it can be used with other models of refractor
• 48mm filter ready

Superb Finish

• William Optics polished anodized finish.
• All internal surfaces threaded and blackened to prevent reflections.

Easy to Use

• Will accept any standard 48mm wide T-ring for your camera (not included). Not compatible with smaller 42mm T rings.

Suitable for

• New FLT91 scope (with included M92 adapter)
• GT71, GT81, Z81, Z103 WO scopes (without using the included M92 adapter)

Adjustment Setting

• FLT91: 5.4mm plus a standard back focus requirement of 55mm from base of M48 thread to sens

Image Circle:

• GT71 - 44.4 mm
• GT81 - 44.4 mm
• Z103 - 43.1 mm
• Z81 - 44.3 mm

Technical Specifications

Back Focus	55mm
Camera Side Connection	Male M48

In the Box

• William Optics 0.8x Flattener/Reducer for Fluorostar 91

Warranty & Manuals

William Optics 2-Year Warranty