Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Up close and personal

I had been looking for some time for a set of compact close-focus binos for butterfly and moth observation, and as a light-weight backup when not carrying my birding glasses, when I stumbled upon the Pentax Papilio.I am astounded at the close-focus capability of these glasses. There is, quite simply, nothing on the market in the same league. At 8.5x21, the exit pupil is quite small and it required a little bit of patience to get everything adjusted to my liking. The payoff was well worth the initial trial and error tinkering as I was introduced to a new world of close-up nature observation.At long distances, there is a slight bit of noticeable chromatic aberration, but well within the range of acceptability for backup use and probably acceptable for most folks for general use. There are a lot of fine field glasses available for different purposes - if close focus is the most important feature for you, you will not be disappointed with the Papilio's.