I bought the Swarovski BTX eyepiece and paired it up with the 115mm objective last month. I was finally able to test it in the field during all times of light conditions this past weekend. I noticed that during the day in max daylight, it was like there was a filter or as if I was looking through it with sunglasses on. In the evening and or in the morning, this was not noticeable and was perfect. Is this normal?