Hello. I'll preface by saying this may be a dumb question.
I just bought a pair of Kowa 6x30 YFs for my 4-1/2-year-old son. I pulled them out of the box and focused on some stuff in the corner of my kitchen, and everything seemed fine except for a small spot of light (really, a circle of brightness or shininess) in the left optic. This spot disappears in other situations. Now I've noticed that my other binoculars exhibit the same kinds of spots in some lighting situations (testing in the same interior lighting). I confirmed that using a clean lens cloth on the Kowas didn't make a difference. I'm assuming this may just be a speck of dust on an interior lens surface or prism, but I don't know enough about optics to be sure. Bottom line is that out in the field, I haven't noticed anything like I see indoors, and the pair seems to be working fine.
I got an RMA for a new pair, but now I'm thinking it might just be me being paranoid. Is there anything wrong with this pair, or are these kinds of lighting artifacts common in all binoculars, and nothing to worry about? More to the point, can I expect the same in any new pair, particularly at this price point?
Thanks.
I just bought a pair of Kowa 6x30 YFs for my 4-1/2-year-old son. I pulled them out of the box and focused on some stuff in the corner of my kitchen, and everything seemed fine except for a small spot of light (really, a circle of brightness or shininess) in the left optic. This spot disappears in other situations. Now I've noticed that my other binoculars exhibit the same kinds of spots in some lighting situations (testing in the same interior lighting). I confirmed that using a clean lens cloth on the Kowas didn't make a difference. I'm assuming this may just be a speck of dust on an interior lens surface or prism, but I don't know enough about optics to be sure. Bottom line is that out in the field, I haven't noticed anything like I see indoors, and the pair seems to be working fine.
I got an RMA for a new pair, but now I'm thinking it might just be me being paranoid. Is there anything wrong with this pair, or are these kinds of lighting artifacts common in all binoculars, and nothing to worry about? More to the point, can I expect the same in any new pair, particularly at this price point?
Thanks.
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