Well talking to photographer yesterday he told me the Tamron company is on the island and they will recalibrate your lens. Called up and am going to drop off the 150-600 and my camera. They said they will match them up to each other . Sounds good to me. Been using a monopole and still not seeing the results of the 400. Yes it’s heavy but I’ve been carrying it so much I’ve grown used to it. Some shots from yesterday.IMG_0865.jpgIMG_0872.jpgIMG_0867.jpgIMG_0866.jpg. Put up some bird feeders a week ago and now I’ve got about 20 sparrow regulars and some other birds starting to join in. IMG_1101.jpgDSC_4842.jpg. Looking at these 2 I thought they were the same type. Both black birds. Camera shows the difference . Nice colors on the Grackle DSC_4835.jpg even the Mourning dove came over to see what’s going on .DSC_4780.jpg