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Thread started 05 Jan 2012 (Thursday) 11:57
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CPL+stepdown+hood question

 
jbrackjr
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Jan 05, 2012 11:57 |  #1

Noob question….I have a 10-22 which is 77mm & a 18-200 which is 72mm both with hoods. I know I can use a CPL (77mm) and a stepdown ring for both lenses, but will it work with the hood on the 18-200?
Looks like it should clear the hood, but maybe not... Any other issues with this type of arrangement? I was going to purchase the CPL & B&W Schneider 77-72 but if it won’t work with the hood, I won’t need the ring and will have to buy two CPL's.
Thought I would check before I place the order.
Thanks for your help.


Jim
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ben_r_
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Jan 05, 2012 12:59 |  #2

You mean use the 10-22 with a 77mm CPL and the 18-200 with a STEP-UP adapter ring. Yes that will work, but you will not be able to use the hood on the 18-200.


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jbrackjr
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Jan 05, 2012 13:42 |  #3

Thanks ben.
So if I understand you correctly, you start at the lens (18-200) and step up to the CPL. I was starting at the CPL and going down to the lens. If I chose to go without the hood, Iwould look to order a male thread 72mm to female thread 77mm ring (step up). Please correct me if I am wrong. Still learning. Thanks again.


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dedsen
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Jan 05, 2012 14:33 |  #4

Just remember the you need to get your finger in there somehow to adjust the CPL.



  
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ben_r_
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Jan 05, 2012 15:05 |  #5

jbrackjr wrote in post #13652134 (external link)
Thanks ben.
So if I understand you correctly, you start at the lens (18-200) and step up to the CPL. I was starting at the CPL and going down to the lens. If I chose to go without the hood, Iwould look to order a male thread 72mm to female thread 77mm ring (step up). Please correct me if I am wrong. Still learning. Thanks again.

Pick up this one here: LINK (external link)


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DerekW
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Jan 05, 2012 15:09 |  #6

Would you even be able to rotate the CPL with a hood on?




  
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Jan 05, 2012 15:16 |  #7

DerekW wrote in post #13652619 (external link)
Would you even be able to rotate the CPL with a hood on?

Some of us can, some of us cant it seems. I usually can, and do, depending on how Im shooting. But as others seem to have issues with it, perhaps I have long fingers?


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DerekW
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Jan 05, 2012 15:36 |  #8

It would just seem easier to adjust to get what your looking for from the side rather than putting your hand in front of the lens, refocusing, and repeat. :)




  
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jbrackjr
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Jan 05, 2012 16:05 |  #9

Ben, thanks for the link.

DerekW wrote in post #13652619 (external link)
Would you even be able to rotate the CPL with a hood on?

Not sure if I can do it, but I would like to keep the hood on all the time so I will try it and see if works for me.


Jim
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argyle
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Jan 05, 2012 16:28 as a reply to  @ jbrackjr's post |  #10

Its good practice to use a hood, but to be honest, its not always necessary depending on the conditions.

You will need what Ben mentioned in Post #2...step-up ring...this will allow you to use the 77mm filter on the smaller diameter lens without getting any vignetting.

Another option is to do what some others have done...use a Dremel or something similar to cut a finger slot in the bottom of the hood...this will let you slip in a finger to adjust the CPL. This is really only needed for deep filters...the petal hood for the 10-22 should be plenty shallow enough for you to get your fingers on the filter. An easier option is to use a collapsible rubber hood that you could thread onto the filter...to adjust the CPL, just simply rotate the outer edge of the hood.


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CPL+stepdown+hood question
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