I am looking to buy a field flattener as a gift for someone who has an AT72ED and wondering if the Apertura adjustable flattener
or the Astro-Tech 2" flattener
would be a better choice? It will be used initially with a dlsr camera. The Apertura is adjustable so that seems to be an advantage. I spoke with someone who said the Apertura scope is the same optics as the Astro-Tech so that it would be compatible. Thanks!