Full-frame v. crop sensors : A comparison

Discussion in 'Digital Discussion & Q&A' started by 480sparky, Mar 14, 2012.

  1. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    Does this make sense?

    [​IMG]


     
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  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Yes, it makes sense. Things to add would be that this is a comparison of the field of view and the specific crop factor that is being applied.
     
  3. Austin Greene

    Austin Greene Been spending a lot of time on here!

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    Muy bueno Sparky! I really hope this helps clear up all the confusion that the forums have been seeing as of late ;)
     
  4. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Similar photos/diagrams have been available on the net for years...and yet the confusion remains. I do hope it helps...but someone people just seem to want to be confused. :lol:
     
  5. Helen B

    Helen B TPF Noob!

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    Nice, clear diagram, but the captions are a little confusing. What you are showing as the 'field of view' should be the 'image circle' shouldn't it? The field of view is defined by a combination of the format and the lens, it is not defined solely by the lens (ie the fields of view are the rectangles - they would only be the circles if the lens' image circle was smaller than the format, which is not the case here). The image circle is a property of the lens and only the lens.

    (Keith - KmH - has a diagram that uses the correct terminology)
     
    Last edited: Mar 14, 2012
  6. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    So change FOV to something like "Scene projected by __ lens"?


    I think it's precisely the case here..... using a crop lens on a full sensor will not fill it, thereby affecting the FOV


    Which I think the diagram shows... regardless of which sensor is used, the image circle remains the same.
     
  7. Helen B

    Helen B TPF Noob!

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    Maybe I should have been clearer:

    The circles in your diagram (marked as 'fields of view') are not 'fields of view', they are 'image circles'.

    The rectangles in your diagram are 'fields of view'.

    Best,
    Helen
     
  8. PapaMatt

    PapaMatt TPF Noob!

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    Now, Now, I thought I had it at last but there you go again confusing me :lmao:
     
  9. jake337

    jake337 Been spending a lot of time on here!

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    It's easy! The circles are the image that the lens refracts(right word here?), the squares are what each sized sensor actually captures.
     
  10. PapaMatt

    PapaMatt TPF Noob!

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    lol, I understand, it was a joke with all that chat with Helen,, Thank You much
     
  11. jake337

    jake337 Been spending a lot of time on here!

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    :thumbup:
     
  12. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I fixed it for you.
     

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