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8:54 AM
@johnp What is your question?
 
Morning :) Well I'm looking to get a wide angle lens for my Nikon. It has a crop factor of 1.5 so I need a shorter focal length than usual... I have a 35mm prime lens that behaves more like a 50mm because of the crop factor. But I'm wondering how the crop factor effects distortion, if it does at all
Would a 10mm lens, for example have the distortion of a 10mm lens on a cam with crop factor, or would it have the distortion of a 15mm lens? I'm a little braindead in this area!
As I need to get a shorter focal length to get a wide angle field of view on a cropped sensor, I'm wondering will it suffer from more distortion than usual, or will it just behave like a longer wide angle lens on a full sensor camera
 
9:54 AM
@johnp It all depends on the particular lens in question. In general terms, a rectilinear lens will exhibit less distortion than a fisheye lens. A 10mm rectilinear lens on a 1.5X crop body should look about the same as a 15mm lens on the FF camera. But in practice no two designs are identical and either lens could be better corrected than the other.
 
Thanks for your answer @MichaelClark Well the lens I was looking at is aspherical I think amazon.co.uk/Tokina-AT-X-PRO-11-16mm-DXII/dp/B007ORX8ME/…
If the distortion isn't too bad, it would be nice to take some portrait shots in a wide angle setting - that's why I'm wondering.
 
10:56 AM
You can always search FLickr for the exact name of the lens in question and see what photographs taken by others using that lens looks like.
 
ah, great idea! :) Thanks
 

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