I have mainly imaged with newts, first an 8 inch F5 and then a 10 Inch f4... I did try with an 80mm Explore scientific refractor but collimation issues made me love my NEWTS a lot!!! refractors are great for AP but they are more expensive if you increase aperture and/or specs, like triplets or cuadruplets!!!! Newts are less expensive, you can buy more aperture, you will need a heavier, more stable mount and it comes with the need for colimation skills.... (a good refractor does not need to be touched).
So, the good part, i love using a Newtonian, at the moment i am on the sweet spot of 10 inches F4... (thinking of 12 F4).... in the future...
A nicely tuned and maintained eq6 or AzEq6 can handle a 100mm refractor and get awesome results, but, no matter what someone says, they can't deal with a 10 inch telescope, mo matter what i did, my EQ6 worked hard with an 8 inch F5 Carbon Fiber scope.... lightest setup possible, cables ran inside the mount, nothing dragging, and it was hard work.... I needed a bigger mount and a EQ8 was on my mind, then, lucky me, i made a deal and found a nice OLD Takahashi NJP..... this mount is from 2004 and still going.... part of the payment was a nice QHY9M that i had with filter wheel and OAG................. by then i already had a ZWO 1600.
From this moment on i started to see with my own eyes what you can do with the right equipment, i moved to 10 inches and the combination worked, i have shot and processed more than 150 photos in less than 2 years, do the numbers, mostly all of them RGB or HST, so, multiply by the number of filters and number of subs....... only 1 out of 100 subs goes to the bin....... Having that working ok, i started to improve my telescope:
Carbon Fiber tube,
Big, quality Focuser (with stepper motor)
Got rid of the primary mirror clips,
glued the primary mirror,
Adjusted the size of the secondary to illuminate the entire sensor with the 100% zone.
Learned how to colimate the entire thing, Focuser tilt, proper offset, etc....
Spider Vanes fixed to get clean nice sharp diffraction spikes
the best and most important part of all:
I HAVE BEEN STUDYING A LOT ABOUT MY MOUNT MY CAMERA SENSOR AND THE SWEET SPOT BETWEEN SUB NUMBERS AND EXPOSURE. (more work needed) :-)
© Copyright diego colonnello