Did a little early Sunday morning optics comparison...
Mounted the scopes on a tripod and just went through some paces while viewing a spot a little over 2K. Very little mirage, but a bit of haze.
After this morning, I will have to say that overall the Kahles resolves a little better at long range on 50x. Heavy mirage or not. For one reason is that the Kahles has a larger focus wheel that allows for finer adjustment. Goes to 800, then infinity. The Delta is smaller wheel that goes to 300, then infinity. But mostly, I think the Kahles resolves better at long range simply due to the fact that the glass is so much less affected by all atmospheric conditions. Mirage, haze, whatever. The Kahles stays nice and sharp through just about anything. Not sure how they pull it off, but it really is quite amazing. The Delta is nice and sharp on max power in good to decent conditions, but in heavy mirage, you definitely have to crank the power down to about 40x.
The reticle on the 2 scopes are almost identical. Love them both. Nice simple uncluttered light hash marks with a floating dot in the center. Probably my favorite reticle style of all.
You will notice the "white washout" effect Kahles uses to brighten the image in my photos. Some of the Zeiss glass does the same thing. Not one of my favorite glass features, but some folks like it. I personally prefer truer color rendition with greater contrast. The Delta definitely gives you an image with nice rich true colors. The photos through the scopes were taken with both set on 20x viewing a clearing at about 2200 yards. I couldn't hold my phone steady enough to get good pics on higher mag ranges. Too much coffee
The two scopes set up this morning. You can see the Delta is actually a shorter scope than the Kahles, but they even out in length with their sunshades attached.
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Image wit the Kahles on 20x. Notice the whitewash effect in low light conditions. Tho still a very nice sharp image edge to edge.
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The image with the Delta on 20x. Much richer true colors. Provides plenty of brightness without compromising color rendition.
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