Astronomy Specialist

FLAT6AIII 0.8x REDUCER FOR GT71, GT81, Z81, Z103

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$369.00

Quantity
- +

 

The William Optics Flat6AIII is an apochromatic triplet 0.8x flattener/reducer with STM-coated Ohara lenses. The 44.4mm image circle (43.1mm with the Z103) makes it a perfect match for full-frame sensors.

The Flat6AIII features adjustable spacing for use with a range of cameras and imaging systems. The Flat6AIII includes an M48 filter thread which will hold any standard 2" mounted filter.

Compatible with William Optics GT71, GT81, Z81 & Z103 telescopes which have an M63 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 0.8 x
Telescope connection M63 x 1
Camera connection M48 x 0.75
Image circle 44.4 mm (43.1mm with the Z103)
SKU WO-P-FLAT6AIII

 Telescope total backfocus distance

GT71
64.1 mm
GT81
62.1 mm
Z81
60.2 mm
Z103
57.5 mm

 

Distance adjustment needed for correct backfocus

GT71
9.1 mm
GT81
7.1 mm
Z81
5.2 mm
Z103
2.5 mm

 

 

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