Stars not pin point on my denk bino viwers

Hi,
I spend money to update my binos with 2" size and on my 15" obsession stars can not look sharp with pair of 17mm Burgess eyepieces.
any idea for a better options.
other wise the image looks as observing through 30" dob is huge but not sharp.
with a single eyepiece I can see colors on m42 but not with bino's.
let me knoe please.

When you say you upgraded to 2", do you mean you have switched to a 2" nose on the Denks? Do you have a 2" OCS?

Can you supply a picture of yur binoviewer setup?

Don