What is the widest focal length before fish eye effect?

9 years 7 months ago #401891 by Jeff Dutton
I want to get the widest lens, but don't want something that will give me fisheye effect.  Can someone help me please?  Is there a set focal length that transitions from fish eye to wide angle without the fish eye effects? 

I appreciate your help. 

Jeff


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9 years 7 months ago #401908 by KCook
For your APS-C mount the shortest non-fisheye is 10mm (I have one).  But there are a few lenses longer than 10mm that will be fisheye, so there is some overlap to watch out for.

Kelly Cook

Canon 50D, Olympus PL2
kellycook.zenfolio.com/

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9 years 7 months ago #401912 by Sawyer
Now doesn't this depend on the lens manufacture too?  For example the Tokina 11-16mm has some fisheye effect

Canon 5D Mark II | Canon 70-200mm f/2.8L IS USM | Canon 35L | Sigma 85 1.4 | Helios 44M-6 58mm(M42) | Zeiss 50mm 1.4 (C/Y) | Canon 135L | (2) 430EX II
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9 years 7 months ago #401934 by Joves
Nikon has the 10-24 that is a zoom rectilinear lens. I think it is not inexpensive either. Also I think that Sigma makes one that wide as well. All ultra-wide lenses will have some distortion at their widest, some less than others, manufacturing wise. The only distortionless one Nikon made was the 13mm f/5.6, but good luck on finding one of those, and affording one if you do. They were only made as they were ordered, back in the day when people had patience, or the film days. 


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9 years 7 months ago #401935 by JeremyS
Widest full-frame is a sigma 12-24mm f4.5-5.6 as far as I know, and APS-C would be probably 10mm. 


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9 years 7 months ago #402163 by Colorado Mike
Interesting, so there is roughly a 2mm difference between full frame and crop sensor cameras?


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9 years 7 months ago #402177 by garyrhook
With that short of a focal length, that's a big difference. Almost 17% to be exact.


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9 years 7 months ago #402364 by KENT MELTON
Good point, one that honestly I had over looked myself.  


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