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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Swarovski 20-60x, or 25-50x eye piece?
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<blockquote data-quote="Trickymissfit" data-source="post: 563107" data-attributes="member: 25383"><p>In optics the coating cannot reduce or increase the light going thru the scope body and eyepiece. That part is engineering alone. Plus you also have a focal point (or F Stop) that is a ratio of the over all length to lense diameter. I'm not all that good at the f stop stuff, but the higher the number, the better the resolution and depth of field. What's interesting here is that few companys state the f stop in the literature, but all astronomy telescopes do.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 563107, member: 25383"] In optics the coating cannot reduce or increase the light going thru the scope body and eyepiece. That part is engineering alone. Plus you also have a focal point (or F Stop) that is a ratio of the over all length to lense diameter. I'm not all that good at the f stop stuff, but the higher the number, the better the resolution and depth of field. What's interesting here is that few companys state the f stop in the literature, but all astronomy telescopes do. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Swarovski 20-60x, or 25-50x eye piece?
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