posted April 06, 2013 09:12 PM                   

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Hey Tim,

No brightness advantage in a 30mm tube over a 1". Size of exit pupil (the window of light that exits the eyepiece) is determined by diameter of objective lens divided by power, so a 50mm objective in 10X would yield a 5mm exit pupil whether main tube is 1 inch or 30mm. Many 30mm scopes appear a bit brighter sharper than many 1-inch simply because they are build of the highest materials to the highest quality. Build a 1-inch to the same standards and same useable brightness results.

Neither 10X nor 12X is good for running coyotes unless they're waaaaay out there because you don't get enough field of view to adequately lead a running coyote. Better at 6X to 8X out to 150, maybe 200 yards. Past 200 you can start to perform with high powers, but not really needed.

For night hunting, the human pupil dilates to a max of 7mm, so you could benefit from a scope that produced a 7mm EP. That would be a 10X with 70mm objective (don't make it.) or a 7X by 50mm. So, get a 2.5-10X or 3.5-12X or so with a 50mm objective. Dial the power down to 7X or lower and you get all the brightness your eye can absorb. But the real brightness comes from the anti-reflection coatings. These coatings can improve light transmission through the scope as much as 70 percent. Huge deal. Get fully multi-coated scope. Every lens has multiple layers of these essential coatings. Best brightness bang for your buck and doesn't weigh anything. Which brand has the best and most multi coatings is the big question. No one's telling. So you have to compare one against the other about 40 min. after sunset. Look at something in the dark shadows toward the setting sun. You'll see any differences one scope to another. And in many cases it's not much. Under brighter conditions they all look good.

Hope this helps. Can provide more detail if you want. Brand name isn't too important. Just don't buy the cheap line. Stay from the middle of the back and higher. $500 gets you about as good as $1,000 and up. Differences at those levels get pretty subtle. But, considering all the big bucks you make, you might just as well get a Swarovski or Zeiss for $2000 and not worry about it!

Ron
Ace Luciano says hey.

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posted April 08, 2013 09:29 PM                   

If Fred would of read my post correctly I was compareing "my scopes" to one another, not to his or anyone elses just what I had on hand.
In my test the scope with the 30mm tubes gave the best results, more field of view and more light compared to the others. The tube dia. most likely has nothing to do with it but it was the better of the scopes tested and half the price.

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Many 30mm scopes appear a bit brighter sharper than many 1-inch simply because they are build of the highest materials to the highest quality

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posted April 09, 2013 06:00 AM                     

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For day time runners or night hunting a scope with a 30mm tubes is the route to go. Gathers more light and makes it a little easier to pick up your target...

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