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<blockquote data-quote="WayneF" data-source="post: 222265" data-attributes="member: 12496">I agree, just the Standard pattern seems plenty.&nbsp; The others just zoom a bit more or less, which we can always do manually.&nbsp;&nbsp; DX zoom too actually, but it is obviously handy to be automatic.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />The dome switch (to declare wider zoom mm) has two purposes.&nbsp; &nbsp; One is just a number shown to the user in the LCD for their information, to use as they choose.&nbsp;&nbsp; I am puzzled too by the 8mm and 11mm values, seems backwards my expectations, but they are just numbers.&nbsp; I cannot imagine the flash has any use for the 8mm number.The other purpose is to switch to a different lower guide number (wider but lower light level within that wider coverage).&nbsp; Flash models like SB-700, SB-800, SB-900 have a GN Mode, which is manual flash, but we enter a distance and it computes flash level for that distance using guide number.&nbsp;&nbsp; Pretty accurately too.&nbsp; It has to know the guide numbers, and snapping the dome in place trips a switch to tell it is there, and that the guide number is changed.&nbsp; The manual says the 8mm, 10mm, 11mm patterns all are GN 14 (no change with pattern, which is surprising too), but the GN 14 is much lower than without the dome, which is necessary for GN mode to know.</blockquote>

[QUOTE="WayneF, post: 222265, member: 12496"] I agree, just the Standard pattern seems plenty. The others just zoom a bit more or less, which we can always do manually. DX zoom too actually, but it is obviously handy to be automatic. :) The dome switch (to declare wider zoom mm) has two purposes. One is just a number shown to the user in the LCD for their information, to use as they choose. I am puzzled too by the 8mm and 11mm values, seems backwards my expectations, but they are just numbers. I cannot imagine the flash has any use for the 8mm number. The other purpose is to switch to a different lower guide number (wider but lower light level within that wider coverage). Flash models like SB-700, SB-800, SB-900 have a GN Mode, which is manual flash, but we enter a distance and it computes flash level for that distance using guide number. Pretty accurately too. It has to know the guide numbers, and snapping the dome in place trips a switch to tell it is there, and that the guide number is changed. The manual says the 8mm, 10mm, 11mm patterns all are GN 14 (no change with pattern, which is surprising too), but the GN 14 is much lower than without the dome, which is necessary for GN mode to know. [/QUOTE]

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