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Message: <blockquote data-quote="henry link" data-source="post: 3586572" data-attributes="member: 6806">That's a good example of how ideas about what's desirable in photographic optics don't always apply to binoculars and scopes. My understanding is that spherical over-correction in camera lenses, particularly portrait lenses, is considered a good feature because it creates a nice soft bokeh behind the subject. It inevitably softens the plane of best focus, OK for portraits, but never a good thing in binoculars and scopes.The very same baffling for controlling glare can be used in binoculars with or without field flatteners. My 8x30 Habichts without field flatteners have similarly poor glare resistance to the 8x32 SV with flatteners and for the same reason, poor baffling of the objective cell. The field-flatteners in the SV seem to take the rap for everything, but just as in the choice of distortion, the relatively ineffective baffling in the SV has nothing to do with field flattening.Henry</blockquote>