T80 - Samyang 135 mm @F2.8, ZWO ASI2600MM Camera, LRGB, Ha, OIII, SII Filters , Lodestar SX2
guider with ZWO 30 f/4 guidescope. Paramount MyT Mount
Location Information
Observatory: E-Eye Fregenal de la Sierra, Spain - MPC To be advised
Telescope: T80 135 mm f/2.0 Samyang Lens + CMOS
Timezone: UTC +2:00 Central European Time, Spain
Daylight savings time is observed
Minimum Target Elevation: Approx 30°
North 38.218422478401486 East -6.630268404062703
Elevation: 560m MPC Code to be advised
- link to a map: E-EyE
Operational Notes
Super-Wide Field astrophotography. LRGB, Ha, OIII, SII filters.
Raw data can be found at data.itelescope.net.
- Maximum Exposure 600 seconds.
- Bin 1, Bin 2
- calibrated darks available for 600 sec
(the IMX571 sensor has very little dark current making dark frame virtually redundant) - residual coma in the extreme corners can be seen
Instrument Package
CMOS: https://astronomy-imaging-camera.com/product/asi2600mm 16-Bit CMOS
A/D Gain: 4.0e-/ADU
Pixel Size: 3.8um Square
Resolution: 5.81 arc-secs/pixel
Sensor: CMOS IMX571
Cooling: -10C
Filters: Astrodon Gen 2 E-Series LRGB, Chroma 3nm Ha, OIII, SII
| FOV | 10.37 Deg x 6.93 Deg |
| Array | 6248 (H) × 4176 (V) = 26 Mp |
| Pixel scale: | 5.81 arcsec/pixel |
| Orientation: | Up is 268 degrees E of N |
Telescope Optics
OTA: Samyang 135 mm @ F3.5
Optical Design: Camera lens
https://www.samyanglens.com/en/product/product-view.php?seq=323
Aperture: approx. 65mm
Focal Length: 129mm (actual)
F/Ratio: F2.8 (stopped down from F/2)
Guiding: ZWO 30 F/4 guidescope with Loadstar SX2
Mount: Paramount MyT