Welcome to the forum. You have made a wise decision in joining this group of enthusiasts. They all must have signed the Hippocratic oath for the dissemination of knowledge.
After an introduction like that the rest of this letter will be a disappointment as I am unable to answer...
The Swarovski adapter works well.
I tried one with the Pentax astro eyepiece not long ago.
To see a picture here is a link to their accessory page.
PENTAX PF – 100ED.
Like motor cars, optical equipment can arouse passions in a man, consequently birdwatchers’ opinions are not always subjective or dispassionate.
The first question you need to ask your self is – ‘What type of bird watcher am I?’
If you walk miles and miles in tough...