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 FLT132, FLT156, GT102, GT153, & 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)|
Adjustable distance for DSLR / Mirrorless camera