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

: 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

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

FOV10.37 Deg x 6.93 Deg
Array6248 (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


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