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Photo Method for Showing Color Bias and Light Transmission
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<blockquote data-quote="henry link" data-source="post: 1391340" data-attributes="member: 6806"><p>Thought I would post one more image which shows some interesting changes in the color bias of the Zeiss FLs since they were first introduced. The photo below shows a 8x56FL from about 2 years ago (upper left), the 7x42 FL I tested at the dealer last week (upper right), the Leica 8x42 Ultravid from the same test (lower right) and an early production 8x42 FL from 2004.</p><p></p><p>To my eye it appears that the early FL had a more neutral appearing color bias which more closely resembles the Ultravid. I noticed the slighty greener bias in the 8x56 FL when I first bought it. It's an early example of a LotuTec coated FL and my suspicion fell on that as a possible cause. It's also possible that an unrelated change in the coatings was made to extend high transmission further into the blue/green for a better match with peak eyesight sensitivity in low light. Whatever the reason, it appears that recent FLs have a greener bias than early ones. On my monitor the new 7x42 appears obviously greener than the 8x56 from two years ago.</p></blockquote><p></p>
[QUOTE="henry link, post: 1391340, member: 6806"] Thought I would post one more image which shows some interesting changes in the color bias of the Zeiss FLs since they were first introduced. The photo below shows a 8x56FL from about 2 years ago (upper left), the 7x42 FL I tested at the dealer last week (upper right), the Leica 8x42 Ultravid from the same test (lower right) and an early production 8x42 FL from 2004. To my eye it appears that the early FL had a more neutral appearing color bias which more closely resembles the Ultravid. I noticed the slighty greener bias in the 8x56 FL when I first bought it. It's an early example of a LotuTec coated FL and my suspicion fell on that as a possible cause. It's also possible that an unrelated change in the coatings was made to extend high transmission further into the blue/green for a better match with peak eyesight sensitivity in low light. Whatever the reason, it appears that recent FLs have a greener bias than early ones. On my monitor the new 7x42 appears obviously greener than the 8x56 from two years ago. [/QUOTE]
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Photo Method for Showing Color Bias and Light Transmission
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