i think i can only do so much within my classroom context and see potential for more. supports cameras, binoculars and other optical equipment with a standard tripod mount. often difficult situations, decisions, and getting through so much have to be done to do so. morning review: i have used several bottles of this over the years, so i’m not new to this product. glad your sister is doing well. you don’t have to go in to the store, if you don’t want to. but having access to that data is not enough. this lens just takes beautiful photo. 