Sky-Watcher Quattro 150P Imaging Newtonian - Large Aperture 6-inch Reflector Optical Tube for Astrophotography and Visual Use

This is a really great scope, especially for the price. My first newtonian which is probably why i had a bit of trouble getting it set up from the start. After watching many videos about collimation, i found that my secondary mirror was a bit out rotated and needed some correcting. After figuring this out, collimation wasn’t so bad and the stars at the edge of field of view are perfectly fine.Image is of M16 Eagle nebula shot thru a H-alpha Oxygen 3 filter.

Lots of improvements can be done with this scope, but super for the price. Great first AP scope. Mirror is great for the price. Better scopes don't come with the corrector, and a corrector can cost as much or more than this scope. Get a good GEM. Better to put your money into your mount. Can do good planetary AP with a Barlow. From Better focuser, to sealing up light leaks and flocking, there are loads of improvements you can do cheaply and get loads of enjoyment from this scope. For the price, you can't beat it.

The telescope once assembled and tweaked is great, it can absolutely capture fantastic images. The f/4 focal ratio makes for much easier photography, and the included coma corrector works flawlessly as well. I've used it quite a bit over the last 2 months, and I love it now that I have it's flaws figured out.The build quality is fairly poor, be sure to take the primary mirror out and check it. The clamps holding the primary mirror down were unbelievably loose, along with almost every other screw on it. Once everything has been tightened and assembled properly, the focusing is smooth and it holds collimation well. I 3d printed a mask for the mirror while I had it apart, and it works great. There's also light leaks everywhere, especially around the back. The right mask can help some with light coming from behind the mirror. I wrapped every seam with electrical tape, and I'll occasionally throw a stocking cap over the back if needed.Also, the coma corrector has M48 threads, so be sure to get a t-ring of that size if you're using a conventional camera.

Very fast scope. Arrived in good condition. But don't damage that coma corrector it cost $440 to replace it. That is over 90% the cost of the scope!! Strange why the manufacturer would do that? It is a really fast scope compared to my f5.6 102mm refractor. This guy let's in light fast at f3.45. I can shoot subs in 30 seconds of the orion nebula. I find myself grabbing this scope all the time. It has really sped up my integration time and has good reach. I was a little worried about a reflector telescope. here next to the ocean but the mirrors get dirty slowly and are easily cleaned after 100 hours outside. Scope is relatively easy to collimate. The focuser handles my T7i dslr fine although it's not the best in the world it works to get prime focus fairly well

Be prepared to work on it a lot. First right out of the box I'd say certain things on this scope are garbage. The focuser being the main problem. Initially I thought I could get it to work. After adjustment on the tensioner screws it did hold all my camera gear and the coma corrector in place without slipping. The only issue for me to sort out after that was the stock eyepiece holder that used three metal screws to hold everything. I replaced it using a Baader 2" clicklock eyepiece holder with M54x1 threads. This worked, but the issue here is at best focus the coma corrector was sticking into the light path even with the primary mirror adjusted all the way into the tube. After much fiddling around and looking for a replacement. I ended up just replacing the whole focuser with a CYCK focuser, which has worked great.For imaging I also replaced the spider with the spider from backyard universe. This greatly improved collimation stability. I also put on a primary mirror mask from the same company. Both of which also improve star shapes.The final thing to work out on this scope is light leaks. I flocked the inside of the tube using adhesive felt, and taped over any seams that leaked light using electrical tape. Again the worst offender here is the focuser. I also fashioned a cap for the rear of the scope. Some people say not to do this, but I think it improved things.Now that I've done all this work, yes I love this scope. Would I buy this scope again? Yes, I would, but at a steep discount. Honestly, I would probably go for something more like the "Apertura CarbonStar 150, " because at the end of the day if you do all this to this scope you'll pay just as much.The Photo's:Imaging setup with the "Skywatcher" on the left.M81 & M82 about 22hrs integration. Taken with the Skywatcher 150p the star shapes are a little funky, but I've since fixed that.

The Quattro 150mm reflector is a very good telescope with a few modifications. I recommend replacing the focuser and spider. The focuser that came with the telescope was of poor quality and the spider was a bit flimsy. Although not needed I also installed a cooling fan and a mirror mask. The Quattro is only used for astrophotography.