Vinetting, digital SLRs, and cokin filters

Discussion in 'Beyond the Basics' started by zedin, Dec 5, 2005.

  1. zedin

    zedin TPF Supporters Supporting Member

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    Here is a question. When purchasing a filter system do you go by 'apparent lens length' or acutual lens length. What I mean is the cokin filter set has 2 series A and P. A is for telephoto and normal stuff. It doesn't work at angles less then around 35mm since you start to get vinetting with the filter. The P series on the other hand is for wide angle shots since they are a much bigger filter. But my question is will I need to go to the P series when I get a digital camera due to the 17mm wide angle lens? Or is this counter balanced with the 1.5x magnification? In other words if my 'equivilent' length is 35mm am I still good with the A series?
     
  2. j_mcquillen

    j_mcquillen TPF Noob!

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    Don't actually know the answer to your question... :eyebrows:

    ...but at only a couple of pounds price difference, I would go for the 'P' series - that way you're covered if you ever buy a wider angle lens, or move to a different system etc
     
  3. zedin

    zedin TPF Supporters Supporting Member

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    Yeah.. except I already have most of the filters I need/use in the A series. To replace everything in P series would be ~150 bucks US (stupid polorizer is 60 or 80 bucks)
     
  4. photoboy15

    photoboy15 TPF Noob!

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    The other thing you have to look at is your lens mount size. If you have a 77mm lens mount the A series wont work, or at least I think it wont.
     

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