Astronomy Specialist

FLAT61R 0.8x REDUCER FOR ZENITHSTAR 61

$499.00 AUD
SKU: WO-P-FLAT61R
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William Optics


 

The William Optics Flat61R is an apochromatic 0.8x flattener/reducer for the Zenithstar 61. The 28mm image circle makes it a perfect match for APS-C sensors

The Flat61R features adjustable spacing for use with a range of cameras and imaging systems. The Flat61R includes an M48 filter thread which will hold any standard 2" mounted filter. It also includes a handy camera rotator for precise framing of targets.

Compatible with William Optics Z61 which has an M54 x 0.75 thread. On the camera side there is an M48 x 0.75 male thread, which will accept any wide T-ring.

Note: As this is an adjustable flattener, you must adjust the distance for your specific telescope. See the Instructions tab above.

 

Reduction factor 0.8 x
Telescope connection M54 x 0.75
Camera connection M48 x 0.75
Image circle 28 mm
Backfocus distance 55 mm + 1 mm adjustment from rear section of flattener
Distance adjustment needed for correct backfocus 1 mm
SKU WO-P-FLAT61R

 

Note: Once you have unscrewed the rear adapter to the appropriate value in the table below, the remaining backfocus distance to make up will be 55mm from the rear M48 thread.  

Distance adjustment needed for correct backfocus

Zenithstar 61 1.0 mm
Guidestar 61 1.0 mm




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