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I'm on an EQ3 and I have had trouble calibrating it.
I'm trying to calibrate the reticule but ....
It seems that barrel of the polarscope is off axis in the tube - it sort of moves the whole image around, as if you were swirling a pair of binoculars around.
Maybe I can make a video.
Is it time for me to buy a fresh one that I didn't meddle with?
The outcome is that I can only shoot 20second images before the stars elongate.
Taken with the 450D & baby Tak on the Star Adventurer. This is about 5.5 hours of 1.25 minute exposures over two nights, which is the longest I’ve ever managed to image. I just left the camera clicking until the battery ran out. Processed in Pixinsight with flats & bias but no darks. I usually find it very difficult to align the camera with the previous night’s, but this time I left the scope in the same position overnight & placed Merak in the bottom right hand corner which actually worked.
Hi all, as a complete beginner, who is gradually getting some kit together, the question of which Polar Alignment App I should get for my Android phone is exercising my mind. Looking at the android play store there seems to be a myriad to choose from, which do members recommend & why?
I am hoping someone might be able to help with a possible way to shoot dark and bias frames on a DSLR (canon 700D) without the need to cover the scope or camera, ideally using APT scripts
My thinking is that the camera, has a noise reduction mode where it will take the light shot, then with the shutter closed it will take a dark frame and subtract it from the light. So could you take a series of dark frames on ATP and lock the shutter down?
If anyone knows I would love to know. Would be great to automate the lights, park the scope and have it run darks and bias, without the need to go out to it and cap up at 3.-4 in the morn
By Ken Mitchell
For a long time I wanted to shoot this frame, probably from the early days of my astrophotography adventure.
Finally after all these years I managed to get a decent result of the 'stuff' between these two beautiful nebulae. Fairly happy with the image but always looking for improvement.
I hope one day to redo this all with a mono camera and filters.
Apart from NGC1499 , M45 and the Baby Eagle Nebula no idea what else is in the picture. If you happen to have an idea feel free to educate me.
Some info on image and capturing:
Widefield Pleiades to California.
Taken over 2 nights with a total of 11hrs 25min integration.
With a stock Nikon d610 and Nikkor 85mm 1.8 objective.
Tracking was done with the Skywatcher Star Adventurer.
Lights and all calibrations frames were stacked in DSS.
Processing was done in Adobe Photoshop CC using Adobe Raw, GradientXterminator plugin, HLVG plugin, Nik software plugins and Photokemi action set.