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03-23-2009, 11:45 AM   #16
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QuoteOriginally posted by Canada_Rockies Quote
I just duplicated your vignetting. I put the PH-RBJ 77mm hood from my DA* 16-50 on the DA 12-24. The 12-24 takes the PH-RBI 77mm hood. A quick way to tell them apart is that the hood for the 16-50 has a polarizer window in it. The longer petals on the side of the RBJ caused darkened sides in my image.
thank you Canada_Rockies, so much! you solved my problem, the hood i have is PH-RBJ 77mm. i bought the lens from a person, who had both lenses 16-50 and 12-24mm must be he gave me a wrong hood. i will call him and tell the problem..

thanks again.. it's so easy now.. i was so tense.. last 8 hours..
have a great day, all of you.

03-23-2009, 11:51 AM   #17
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I am very happy that I was able to help you, and I will be very careful not to use the wrong hood myself.
03-23-2009, 12:04 PM   #18
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no clear..

i've created a new group in flickr.com, i'll invite you and others who have this lens, feel free to join a group Pentax DA 12-24mm f/4 AL ED [IF], on flickr.com

Last edited by Mystic; 03-23-2009 at 12:10 PM.
03-23-2009, 02:35 PM   #19
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Good Catch!

QuoteOriginally posted by Canada_Rockies Quote
I just duplicated your vignetting. I put the PH-RBJ 77mm hood from my DA* 16-50 on the DA 12-24. The 12-24 takes the PH-RBI 77mm hood. A quick way to tell them apart is that the hood for the 16-50 has a polarizer window in it. The longer petals on the side of the RBJ caused darkened sides in my image.
Albert, thanks for that info! I also have both lenses and had assumed they shared the same lens hood. Apparently I've gotten it right so far, but I'm sure it would've just been a matter of time before I too had an "unexplained" vignetting problem. Thanks again.
Paul

03-23-2009, 03:43 PM   #20
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QuoteOriginally posted by NeverSatisfied Quote
Albert, thanks for that info! I also have both lenses and had assumed they shared the same lens hood. Apparently I've gotten it right so far, but I'm sure it would've just been a matter of time before I too had an "unexplained" vignetting problem. Thanks again.
Paul
The hood for the 16-50 has petals that stick out further to cover the 16mm and no more, while the shorter petals on the 12-24 hood allow 12mm angle of view.
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