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Old 01-10-2011, 09:55 AM
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Sorry for the simple questions lately.....I have an old circular polariser with a 55mm thread and my new cam will have a 67mm thread when the lens adapter arrives.....I've seen step up and step down rings but which one do I need?
thanks
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Old 01-10-2011, 02:23 PM
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You'd need a step down ring, but I would definitely recommend AGAINST it. Going form a 67mm lens to a 55mm filter is a HUGE difference. Just get a new polarizer in 77mm size and get a step UP filter instead.
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Old 01-11-2011, 10:31 AM
learning all the time
  
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thanks again...
sounds like good advice and I assume using the 55mm polarizer might cause vignetting
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Old 01-11-2011, 03:03 PM
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Quote:
Originally Posted by peejay52 View Post
thanks again...
sounds like good advice and I assume using the 55mm polarizer might cause vignetting
Vignetting isnt that half of it. It'd flat-out block much of the image.
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Old 01-13-2011, 10:59 AM
learning all the time
  
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Cheers all. I've took your advice and ordered the right size polarizer for my lens thread
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