Excerpt: The TSN-880 series is the larger of the two newest scope lines from Kowa. We've reviewed scopes before. We've reviewed Kowa scopes before. We've never seen anything like this scope before! We received the angled fluorite model TSN-883 ("Prominar", for those of you familiar with Kowa terminology) for review from Kowa along with the TSN-773. These are 88- and 77-mm objective lens size scopes respectively. The TSN-773 will be reviewed in another article.