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<blockquote data-quote="garymh" data-source="post: 3317274" data-attributes="member: 60134">That is strange - the picture is a non B model (150m/1000m) but it has rubber eyecups.&nbsp; &nbsp; I think Leitz experimented with different things and the picture in your manual is one of those.In my collection I have a 10x40 B with 14mm rubber eyecups which was manufactured in 1968 (with a 105m/1000m FOV !!!!).&nbsp;&nbsp; The 10x40 B, however, was not introduced until 1973.During my time at Leica we supplied 10mm rubber eyecups to people with &quot;non B&quot; models and 14mm ones to people with &quot;B&quot; models.The timeline for the changes is :1963&nbsp; &nbsp; &nbsp; 6x24, 8x32 and 10x40 introduced.1965&nbsp; &nbsp; &nbsp; 7x35 B introduced (May)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 8x40 B introduced (Autumn)1968&nbsp; &nbsp; &nbsp; 7x42 B introduced1973&nbsp; &nbsp; &nbsp; 8x32 and 10x40 made available as &quot;B&quot; models with a slightly&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; different optical design - hence the loss of FOV.</blockquote>

[QUOTE="garymh, post: 3317274, member: 60134"] That is strange - the picture is a non B model (150m/1000m) but it has rubber eyecups. I think Leitz experimented with different things and the picture in your manual is one of those. In my collection I have a 10x40 B with 14mm rubber eyecups which was manufactured in 1968 (with a 105m/1000m FOV !!!!). The 10x40 B, however, was not introduced until 1973. During my time at Leica we supplied 10mm rubber eyecups to people with "non B" models and 14mm ones to people with "B" models. The timeline for the changes is : [U]1963[/U] 6x24, 8x32 and 10x40 introduced. [U]1965[/U] 7x35 B introduced (May) 8x40 B introduced (Autumn) [U]1968[/U] 7x42 B introduced [U]1973[/U] 8x32 and 10x40 made available as "B" models with a slightly different optical design - hence the loss of FOV. [/QUOTE]

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