best in body shake reduction camera for digiscoping

[avatar12m]

has anyone tried sony's / pentax / olympus cameras with in body shake reduction tech built in , was trying to narrow it down to the best brand / quality for ling 500mm digiscoping trying to get my pictures sharper etc.

currently using a nikon d5100 but the shake reduction is in the lens which i obvioulsy remove and mount the camera body directly on the scope with a t2 adaptor ring.

also would prefer a camera with a digital viewfinder as there allot easier to focus in low light etc

thanks

 

[avatar12m]

thanks never thought of the focal length problems.

just read on pentax f.a.q "degrades significantly the longer the lens you use" i'll just invest in good strong sturdy tripod in that case.