i have budget equipment and have a 45deg Meade diagonal with a prism. i had some serious ghosting as well i was thinking it was the MA eyepieces i removed the diagonal and went just eyepiece perfect focus and no ghosting so it was the diagonal.i just ordered a 90 deg mirror diagonal.im not saying that prisms are bad they just didnt work for me it might work awsome in another scope .plus i really disliked the 45 deg angle it is uncomfortable on my scope for viewing.

Rusty