SleepyHumptyDumpty (Sleepy)
M42 Orion (test for longer telescope)
[Equipment]
• mount: EM-200B modified with MTS-3SDI+.
• autoguiding: Off-axis guide with Superstar (Starlight Xpress) guided usnig PHD guiding.
• Telescope / Lens: TOA-130S
• camera: EOS 60Da
• exposure:
--- ISO 200, 8 x 0.5 [min] + 4 x 2 [min] + 7 x 5 [min]
--- ISO 400, 8 x 3 [min]
--- total exposure time = 71 [min]
• image processing: about 27 images are stacked and filtered with "Registax", and tuned with Photoshop CS6
This image is another test image for the motion of my equatorial mount, and it is taken at my home.
I checked the star-tracking error mounting a telescope with a heavier and larger moment weight.
The error is relatively larger than the case of my telescope of shorter focal length (epsilon-180ED), and it is better to use a heavier mount for star-tracking stability.
On the other hand, the star image is not so bad.
As shown in the image, the details of the nebula is much sharper than those taken with tele-type lens (EF600 x 1.4) previously.
Due to the influence of light pollution, it was impossible to see clearly the "Running man nebula", which is the unclear blue nebula on left hand side.
M42 Orion (test for longer telescope)
[Equipment]
• mount: EM-200B modified with MTS-3SDI+.
• autoguiding: Off-axis guide with Superstar (Starlight Xpress) guided usnig PHD guiding.
• Telescope / Lens: TOA-130S
• camera: EOS 60Da
• exposure:
--- ISO 200, 8 x 0.5 [min] + 4 x 2 [min] + 7 x 5 [min]
--- ISO 400, 8 x 3 [min]
--- total exposure time = 71 [min]
• image processing: about 27 images are stacked and filtered with "Registax", and tuned with Photoshop CS6
This image is another test image for the motion of my equatorial mount, and it is taken at my home.
I checked the star-tracking error mounting a telescope with a heavier and larger moment weight.
The error is relatively larger than the case of my telescope of shorter focal length (epsilon-180ED), and it is better to use a heavier mount for star-tracking stability.
On the other hand, the star image is not so bad.
As shown in the image, the details of the nebula is much sharper than those taken with tele-type lens (EF600 x 1.4) previously.
Due to the influence of light pollution, it was impossible to see clearly the "Running man nebula", which is the unclear blue nebula on left hand side.