FLAT73R 0.8x REDUCER FOR ZENITHSTAR 73
William Optics
FLAT73R 0.8x REDUCER FOR ZENITHSTAR 73 is backordered and will ship as soon as it is back in stock.
The William Optics Flat73R is an apochromatic 0.8x flattener/reducer for the Zenithstar 73. The 28mm image circle makes it a perfect match for APS-C sensors.
The Flat73R features adjustable spacing for use with a range of cameras and imaging systems. The Flat73R 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 Z73 which has 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.
Note: As this is an adjustable flattener, you must adjust the distance for your specific telescope. See the Instructions tab above.
Specifications
| Reduction factor | 0.8 x |
|---|---|
| Telescope connection | M63 x 1 |
| Camera connection | M48 x 0.75 |
| Image circle | 28 mm |
| Telescope total backfocus distance | 55 mm + 1.8 mm adjustment from rear section of flattener |
| Distance adjustment needed for correct backfocus | 1.8 mm |
| SKU | WO-P-FLAT73R |
Instructions
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 73 |
1.8 mm |
|---|
