Hi everyone been some time since i was last here..Ive changed the scopes I had back thenall my Tal scopes have gone to different owners... I now have a 130 mm skywatcher dob and a skywatcher 130 skyscan..I have tried collimating them both using a laser collimator and a cross air type one to but I`m not getting them right, I do everything as it shows me even watched youtube vids and still the collimating is slighty out..I`ve just sent now for a collimator cap hoping that will help..If anyone can help it will be muchly appreciated I`m stumped as I cant use the reflewctor type so I`m having to lug my big gun around the Skywatcner 150n refractor the oder Blue model as its so big its more like a canon lol but as much as i love it , I dont want to be lugging this around all the time at my age lol ..thankyou in advance Phil