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Message: <blockquote data-quote="Troubador" data-source="post: 3665563" data-attributes="member: 109211">Different eyecups would be an excellent option but it wouldn't be cheap. Plastic eyecups have 2 or 3 components so there would be 2 or 3 moulds to pay for just to get one more eyecup size, and then costing of putting a quantity in stock for who knows how long. And if you split your order for eyecups in half to get half in one size and the other half in a different size, well, you know what happens to prices if you reduce the quantity. Offering different focus components to change the gearing would probably be even more expensive. Why? Because bino makers don't mass produce binos. By comparison with many other products the numbers produced is very small and there are limited machining companies who will even consider quoting to supply the required machined shafts/gears. If the bino brand has to split their usual order into three different focus sets to achieve three different focus speeds, the component cost (which includes programming the CNC lathe) would go through the roof or the machine shop may just not bother quoting because the volumes of each size is too small to bother with.Lee</blockquote>