Until recently, I have been using my 100mm PST Tal based stage 2 mod happily in mono and getting excellent detail. Over the past few months I have been working towards using binoviewers and initially was very impressed with the views as they increased the level of contrast and viewing was so much more comfortable. I was though getting slightly frustrated as the views were getting much darker than I was used to in mono even at lower powers. At the DIY Peak Star Party at the weekend, I had a