Help - Skywatcher Flextube 300p dobsonian - Focuser drawtube diameter

[R1k]

Hi guys, I have recently acquired a (?2014) model 300p flextube dob. The focuser drawtube appears to be 57mm in diameter as opposed to the usual 2inch that I’m used to with my 200p dob. The scope has come with a 2inch eyepiece adaptor as pictured however I am not able to achieve sufficient inward focus when attaching my DSLR with 2 inch nosepiece/T-ring.

 

do you know if there is a low profile version of a 57mm - 48mm eyepiece adaptor or alternatively if anyone sells a 57mm T-ring nosepiece? 
 

thanks!