Astronomy Specialist

FLAT68III 1x FLATTENER FOR FLT91, FLT120, FLT132, FLT156

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$1,049.00

Quantity
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The William Optics Flat68III is an apochromatic triplet 1x field flattener with STM-coated Ohara lenses. The 44.4mm image circle (43.4mm with the Z126) makes it a perfect match for full-frame sensors.

The Flat68III features adjustable spacing for use with a range of cameras and imaging systems. The Flat68III includes an M48 filter thread which will hold any standard 2" mounted filter.

Compatible with William Optics FLT91 (with adapter), FLT120, FLT132, FLT156, GT102GT153, & Z126 telescopes which have an M92 x 1 thread. On the camera side there is an M48 x 0.75 male thread, which will accept any wide T-ring.

 

Reduction factor 1.0 x
Telescope connection M92 x 1
Camera connection M48 x 0.75
Image circle 44.4 mm (43.4mm with the Z126)
SKU WO-P-FLAT68III

 Telescope total backfocus distance

FLT91 75 mm
FLT120 65.2 mm
FLT132
62.7 mm
FLT156
57.6 mm
GT102
68.6 mm
GT153
57.8 mm
Z126 58 mm

 

Distance adjustment needed for correct backfocus

FLT91 5 mm
FLT120 10.7 mm
FLT132
7.7 mm
FLT156
2.6 mm
GT102
13.6 mm
GT153
2.8 mm
Z126 3 mm
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