What binoculars do you have and what role(s) do they fill? The following is a list of my current binoculars and the roles that they fill or are intended to fill. Simmons SCL Model 1139 8x21 / General Purpose Day time nature. Pentax 8.5x21 U-Series Papilio II / Day time Nature Up-close and at a distance (the best there is). TASCO BRK Essentials Model: 169735 7x35 / Night time augmenting of finders and to be as least intrusive as bossible. CELESTRON COMETRON 7x50 / Basic GP Astronomy. BUSHNELL 10x50 Legacy WP / Basic GP Astronomy. OBERWERK 15x70 LW / More in depth binocular astronomy.