Anamorphic curvature

[Decius]

I tried out the anamorphic lens the other day and noticed that at the top of the image if there is something straight it appears slightly curved. Is this normal? Is there a way to offset it? In professional productions is this noticeable?

Thanks.

 

[J.R. Hudson]

Re: Anamorphic curvature

A side effect to the Anamorphic!

 

[Jay_Blanchard]

Re: Anamorphic curvature

Does this occur only if it's zoomed out 100%? Where's the range acceptible before vignetting?

 

[Neil Rowe]

Re: Anamorphic curvature

ive used the lense for over a year now, and have no idea what your talking about, and if its on the top, it should be in the bottom too. if your at full or near wide your bound to get some barrel distortion, but thats from the reg dvx lense. and would happen on the reg dvx. and the lense doesnt vignette at all at any setting.

 

[Barry_Green]

Re: Anamorphic curvature

Agreed with IAL.

What you're likely seeing is barrel distortion. The DVX lens is quite wide, and it displays a bit of barrel distortion at its widest setting. An add-on wide-angle lens will exaggerate that effect, and the anamorphic adapter is an add-on wide-angle lens (just only on the horizontals).

You can see the inherent barrel distortion, and how it's magnified by a wide-angle lens, in the test shots at www.icexpo.com/dvx100/century.html

 

[Decius]

Re: Anamorphic curvature

So would zooming in a bit be a reasonable way to offset this effect?

 

[Barry_Green]

Re: Anamorphic curvature

That is exactly the way to counteract it. I usually stick between Z10 and Z90 when using the anamorphic adapter.