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Message: <blockquote data-quote="Hauksen" data-source="post: 3694475" data-attributes="member: 142861">Hi Peter,"One piece" adapters have their advantages, too - they can't go out of adjustment, won't rattle, and can be as slim as it gets <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />In my "two piece" adapter, the fit of the insert ring without any catches etc. is quite good, so it would probably be possible to design additional rings for other eye pieces without changing the design. I have no real good application of that at the moment, though.Here's another "adjustable" design:[ATTACH]656859[/ATTACH] [ATTACH]656860[/ATTACH]The idea is to adjust on of the sliding clamps correctly and fix it into position with a screw through the rails, then sling a rubber band around the cylinders below the clamps to make sure the other clamp holds the phone, and taking it out just requires a bit of force against the rubberband pull.(It still needs another adjustable clamp on top to make sure the lens is in the right position, but you get the idea.)Regards,Henning</blockquote>