Jeff Bouton
FNG
- Joined
- Dec 18, 2020
- Messages
- 9
Here's another independent review from the Birding side from National Audubon Society. Ranking was strictly based on optical & mechanical performance here (smaller size, lesser weight and much cheaper price not even considered in these numerical rankings). In short the Kowa TSN-883 ranked highest by a significant margin >0.6 points ahead of another competitor's 85 mm, right behind this by the narrowest margin possible 1/100th of a point score was the Kowa TSN-773 (costing $1,868 less than the much longer and heavier 85 mm model ranked barely ahead of it). https://www.audubon.org/news/how-we-ranked-em-0
Both of these reviews used teams of independent reviewers in different markets with different expectations. In both cases, though the Kowa was praised for superior resolution of detail and ease of use of the smooth fingertip controls of the focus system, causing less vibration at high magnification. Again, I'm biased, but I challenge anyone to give the Kowa a serious look. The PROMINAR series 550, 770, 880 and now 99 mm series are gamers up for the challenge.
Both of these reviews used teams of independent reviewers in different markets with different expectations. In both cases, though the Kowa was praised for superior resolution of detail and ease of use of the smooth fingertip controls of the focus system, causing less vibration at high magnification. Again, I'm biased, but I challenge anyone to give the Kowa a serious look. The PROMINAR series 550, 770, 880 and now 99 mm series are gamers up for the challenge.