Mini-review of B1 Plus 8x32:
I've long been curious, and an attractive sale price on the 8x32 finally tempted me to try one.
This is the latest Plus version; photos below show it folded to a typical IPD, front and back (views hard to find online). The armor is now nicely grippy, without thumb indents (which would annoy me on so small a bin). The MeoStar has a very solid quality, with a smooth focuser that rotates while the diopter ring remains fixed, unlike Leica BN/UV. Diopter adjustment however is too stiff, causing the hinge (which otherwise seemed tight enough) to move while fiddling with it. Focusing is somewhat slower than on BN/UV or Zeiss FL, but there's nothing to measure turns precisely by. Weight without accessories still measures 21.4oz or 607g, not 18.4oz as stated in Meopta's catalog.
The eyecups twist out in two stops with a fine solid feel. Much has been made of their unusually small diameter (34mm while our others range 38-41mm) but when resting against the eye they're comfortable enough. The problem is that my wife and I both get blackouts due to their insufficient depth: B1 has 2mm more stated ER than BN, but shallower eyecups. Without eyeglasses, we have to hold it away from our face, which is tiresome and unstable. I've had this problem to a lesser extent with several other bins (as others with different anatomy may not) and it may be exacerbated in this case by the small diameter. This has been such a frequent complaint, it's hard to imagine why the recent Plus makeover didn't include deeper eyecups for the 8x32.
The large eyepieces have a concave surface (what can be told from that?), with two faint false pupils that are well separated from the exit pupil. The tubes are thoroughly blackened internally. Rectilinear distortion is low yet there's no globe effect, a very nice optical design that must have changed at some point, since the Allbinos review criticized strong pincushioning in the original B1. FOV is at the high end of the range for 8x bins (before SF/NL). The view seems brighter than expected from a stated transmission of 88%, with good contrast and slightly warm colors similar to BN. Central sharpness is nearly as good as our BN or FL, but there is quite noticeable blurring toward the edge, mainly field curvature. CA is better controlled than in BN, even without the HD glass that other MeoStars have. Close focus is excellent, stated as 5.6ft/1.7m.
This is in many ways a great binocular but due to several issues mentioned, I will sadly be returning it... so ask any questions this weekend.