APM RICCARDI APO 1x FLATTENER FOR SHORT REFRACTORS
APM
APM RICCARDI APO 1x FLATTENER FOR SHORT REFRACTORS is backordered and will ship as soon as it is back in stock.
The APM Riccardi 1.0x Apo Flattener Model 1 is a high quality triplet ED flattener for short apochromatic refractors. This model is suitable for refactors with focal ratios faster than f/7 and focal lengths below 1000mm.
Designed by legendary optical designer Massimo Riccardi, this flattener provides a fully illuminated field of 60mm. It features exceptionally good correction of longitudinal and transverse aberrations with truly apochromatic performance. It has a large backfocus distance requirement of more than 90mm, making it possible to use a wide range of accessories such as rotators and off-axis guiders.
The APM Riccardi Flattener features state-of-the-art multi-coatings optimized for the spectral range of modern sensors.
Specifications
| Telescope side connection |
M82 x 1 male |
|---|---|
| Camera side connection |
M68 x 1 female, M77 x 0.75 female |
| Backfocus distance | Approximately 90 mm +/- 3 mm for refractors around 100 - 130 mm aperture and f/7 focal ratio |
| Coating |
Multi-coating |
| Reduction factor |
1.0 x |
| Illumination |
60 mm |
| SKU | APM-RIFLAT1 |
Backfocus
| APM 107 / 700 with 3" or bigger focuser | 92.8 mm from end of threads |
|---|---|
| APM LZOS 130 / 780 with 3" or bigger focuser |
91.0 mm from end of threads |
