I haven't tried any of the expensive IPhone adapters yet but I have been using a very inexpensive adapter with very good results. The adapter is the Carson Hookupz IPhone adapter. It was designed primarily for binoculars but works well with my Opticron MM3 50 mm spotting scope if I don't use any of the adapter rings. Not sure if it will fit your scope but for $12 it is a small investment. Here is a pic and video I took last weekend of a Great Egret at a local lake with the IPhone 5s, the Carson adapter and the Opticron.



[Linked Image]


Frank