| OPTICAL TUBE INFO: | |
| Optical Design | Rowe-Ackermann Schmidt Astrograph |
| Aperture | 355.6mm (14″) |
| Focal Length | 790mm (31.1″) |
| Focal Ratio | f/2.2 |
| Central obstruction diameter | 158mm (6.22″)(44% of aperture diameter) |
| Light Gathering Power (Compared to human eye) | 2581X |
| Resolution (Rayleigh) | 0.39 arc seconds |
| Resolution (Dawes) | 0.36 arc seconds |
| Image circle | 60.1mm (2.36″) Ã, 4.4° |
| Useable field | 70mm (2.75″) Ã, 5.1°, only minimal performance loss at edge of FOV |
| Wavelength range | 400 â 900 nm |
| Spot size | < 6.3 Ξm RMS across FOV |
| Optical coatings | Enhanced aluminum, XLT multi-coatings used throughout |
| Off-axis Illumination | 83% at 30mm (1.18″) off-axis |
| Optical window | 104mm (4.09″) Ã |
| Back focus with included camera adapter | 55mm (2.16″) |
| Back focus from top of threaded collar | 77.5mm (3.05″) |
| Optical Tube | Aluminum |
| Optical Tube Length | 1079.5mm (42.5″) |
| Optical Tube Diameter | 406.4mm (16″) |
| Focuser | New focuser design, minimizes focus shift |
| Finderscope | Not included |
| Optical Tube Weight | 75 lbs (34.02 kg) |
| Other features | Ventilation fan, dual dovetail mounting bars |
| Included items | 48mm (1.89″) camera adapter, fan battery pack |
Celestron, OTA, RASA
36 CM Rowe-Ackermann Schmidt Astrograph (RASA 36)
₹1,601,613.00 excl. 18% GST
- A breakthrough 36 cm aperture, f/2.2 optical system designed for professional applications that require both a wide field of view and resolution, such as space surveillance and other scientific applications
- 4-element lens group utilizes extra-low dispersion (ED) glass for images free of false color, coma, and field curvature, the Rowe-Ackermann Schmidt Astrograph (RASA) 36 cm is also an excellent choice for advanced astroimaging
- 60 mm optimized image circle maintains pinpoint stars to the far corners of the largest available sensors
- Extended spectral range takes advantage of sensor response in the 700-900 nm range, allowing a brighter overall signal to be detected
- Redesigned focusing system minimizes focus shifting or other unwanted motion of the primary mirror, enabling easy and stable focus
Available on backorder
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.