Very good goal. 3

Focal spectacular, very useful, especially for the price. The picture quality is correct, precisely for the very light prices. The objective is rather bulky, but it is 800 mm and the weight is moderate. The development (must be manually) is tricky. Some do not like the mirror lenses, but it gives optical much more manageable than purely refractors objectives; My only regret: the lack of a tripod collar.