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Imperfect lenses? |
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kesi
Optics Apprentice Joined: July/23/2009 Location: Czech Republic Status: Offline Points: 83 |
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Posted: October/25/2011 at 06:27 |
Hello, I have Hawke Sidewinder 30 6 Half-24x56 Mil-Dot and Hawke 30 Tactical 6.5-20x42.Glasses are very similar, at dusk they have similar performance, although Tac has a smaller lens. I have noticed defocusing on the edge of the visual field in both scopes, is it caused by imperfect (cheap) lens? R.
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kesi
Optics Apprentice Joined: July/23/2009 Location: Czech Republic Status: Offline Points: 83 |
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Do you have similar experience with these or other scopes? |
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SVT_Tactical
MODERATOR Chief Sackscratch Joined: December/17/2009 Location: NorthCackalacky Status: Offline Points: 31233 |
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I imagine it is from the cheaper glass
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dsr
Optics Apprentice Joined: May/31/2007 Location: United States Status: Offline Points: 244 |
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Yes your lens is imperfect but all lenses are even in the
best optical systems are imperfect. All
optical systems are a compromise of conflicting requirements. It is just that the best are much better optimized
and their market price reflects it. |
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koshkin
MODERATOR Dark Lord of Optics Joined: June/15/2004 Location: United States Status: Offline Points: 13181 |
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Scope a design is a study in compromise. With riflescopes, it is not uncommon to sacrifice some performance at the edge for better center field performance. Besides, all scopes are built to a particular pricepoint. That is why there are different pricepoints.
ILya
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kesi
Optics Apprentice Joined: July/23/2009 Location: Czech Republic Status: Offline Points: 83 |
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I understand and thank you for answer.
R.
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kesi
Optics Apprentice Joined: July/23/2009 Location: Czech Republic Status: Offline Points: 83 |
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I normally use lenspen for cleaning glass, but I'd like to ask if I could somehow damage the anti-reflection layer with compressed air? I know it's a strange question, isn´t it? But for me it is important to know it.
kesi |
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