SVBONY SV121 1.25'' Red Laser Collimator for Newtorian and SCT

Owning a newtonian tube i decided to invest in a laser collimator, this was my first choice, qualliy, price and the added 2" converter done it for me . Good solid feel with 7 position click stop laser power adjustment . A good solid feel with a matt black finish give this collimator a professional feel which is easy to use. Don't forget a collimator needs to be collimated ( check out youtube on how to test) on test my collimator was true and had a nice output, fitting it into my skywatcher explorer which I thought was collimated I soon found out the mirror was out and needed resetting.... watch YouTube on how to do this.... if you own a dobsonian or newtonian you can call this a essential tool as they do go out of spec and you will call on this collimator time and time again ... thank you for reading my review (scivideos) ..Barry