Exactly this
What one person sees another doesn’t
That why I don’t get into these reviews
Folks talking about 1/64th of an inch?
Give me a fucking break
Rifle Scopes New for 2025, the Kahles K540i
- Thread starter CSTactical
- Start date
What one person sees another doesn’t
That why I don’t get into these reviews
Folks talking about 1/64th of an inch?
Give me a fucking break
Every inch matters, ask your wife.
That’s what I’m saying. How does one notice a fisheye effect in 1/64” of edge real estate. Did you notice any?
Yes because no scope or bino review ever mentions edge to edge clarity. 
If seeing a dirty dishwater ring around the image in your scope doesn't bother, more power to you. For the rest of us paying retail Kahles can fix that stupid shit.
If seeing a dirty dishwater ring around the image in your scope doesn't bother, more power to you. For the rest of us paying retail Kahles can fix that stupid shit.
They don’t, it’s just saying something negative to say something negative.
There absolutely nothing wrong with these scopes, look too you tube and see what those guys like X ring, area 419 are saying
No, I'm not. Maybe everyone else received a perfect unit. But I very seriously doubt it.
Either way don't accuse me of some petty shit for being honest. If you want to simp or schill for Kahles that is your perogative but don't criticize for calling out a very clear defect in the design of these products.
@jthor, your comment is on point. I did not even realize the distortion was there until later in the day when I started to look at the entire glass from edge to edge.
@918v, you are right, it's almost unperceivable. I noticed it when closely examining the edges and moving the scope right to left across a white target against a dark background.
Another item that came to mind is the windage turret click spacing, which is tighter than I would like.
@918v, you are right, it's almost unperceivable. I noticed it when closely examining the edges and moving the scope right to left across a white target against a dark background.
Another item that came to mind is the windage turret click spacing, which is tighter than I would like.
No offense boss, but you just listed a dealer and a guy who relies on companies sending him stuff as your 'non-biased' support for your argument.
I have no dog in either side of the fight, so I could care less (and I don't like or hate Kahles). I'm just pointing out that there is a little more potential for bias in your two champions.
Have a good one.
I think some people really, really, really like a flat field view. Meaning there is no drop off of quality of an image as you go from center to edge.
You see this debated on camera forums all of the time. Especially on wide angle lenses.
Me? I don’t mind some image degradation as you move to the edge of an image. In photography, in many instances I actually prefer it as the sharper center draws the eye in. I believe it’s called “field curvature” in photography, at least. Not sure what the terminology is for riflescopes.
Imagine the focused image as a dome vs a flat field. That’s what I’m talking about.
Swaro (who owns Kahles) is known for their flat-field approach in binos. I don’t like the effect, although it is stunning. I prefer the typical Zeiss or Leica bino effect, which is more fuzzy towards the edges. In tree cover, for example, the Swaros can confuse the eye as too much is in focus. You can lose where you are, depth perception-wise.
It boils down to taste and expectations.
Anyway, I think March also has this effect with their wide angle eyepieces. It would seem to be a natural optical byproduct of wider and wider angle eyepieces, unless it works quite differently here than in photography (I know lots of opto-mechanical phenomena behave differently in riflescopes and cannot be directly compared to photo lenses).
Some are very picky about this issue. Some are not. Some think it’s a flaw, some think it is not. I know in photography it requires rather exceedingly expensive solutions to get that flat focus effect (edit: in wide angle lenses).
You see this debated on camera forums all of the time. Especially on wide angle lenses.
Me? I don’t mind some image degradation as you move to the edge of an image. In photography, in many instances I actually prefer it as the sharper center draws the eye in. I believe it’s called “field curvature” in photography, at least. Not sure what the terminology is for riflescopes.
Imagine the focused image as a dome vs a flat field. That’s what I’m talking about.
Swaro (who owns Kahles) is known for their flat-field approach in binos. I don’t like the effect, although it is stunning. I prefer the typical Zeiss or Leica bino effect, which is more fuzzy towards the edges. In tree cover, for example, the Swaros can confuse the eye as too much is in focus. You can lose where you are, depth perception-wise.
It boils down to taste and expectations.
Anyway, I think March also has this effect with their wide angle eyepieces. It would seem to be a natural optical byproduct of wider and wider angle eyepieces, unless it works quite differently here than in photography (I know lots of opto-mechanical phenomena behave differently in riflescopes and cannot be directly compared to photo lenses).
Some are very picky about this issue. Some are not. Some think it’s a flaw, some think it is not. I know in photography it requires rather exceedingly expensive solutions to get that flat focus effect (edit: in wide angle lenses).
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I could care less about that last 5% of the image edge. I've used most of the top scopes, spotters, and binos and if I look hard enough I will perceive some image degradation on the edge of pretty much all of them. Unless that distortion is excessive, its simply not a quality I care about in optics. The only time my eyes are that close to the edge is if I'm looking for this very thing.
Additionally, anytime I read someones review claiming "perfect edge-to-edge clarity" or something like that, I basically discount their opinion of that optic.
Additionally, anytime I read someones review claiming "perfect edge-to-edge clarity" or something like that, I basically discount their opinion of that optic.
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P.S. I hate Swaro due to #FOVgate, but I still sorta stick up for them here.
Even though I shouldn't (fuckers).
Even though I shouldn't (fuckers).
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