same shot with 10/3.5 and 12-24

Started 9 months ago | Discussions thread
Arn
Arn
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Re: same shot with 10/3.5 and 12-24
In reply to Jaberwok, 9 months ago

Jaberwok wrote:

Faith Yeung wrote:

Hi Arn,

Looks like the fisheye can deliver similar resolution to the ultra-wide. Right?

I am amazed by it.

With the Hemi software, I think it can really replace the 12-24. What do you thnik?

Nope! Not nearly as sharp and not as well corrected.

It is sharp and it's not supposed to be corrected at all in the way that rectilinear wide-angle lenses are.

Fisheyes are all very well but the novelty soon wears off and the goldfish bowl effect is extremely limited for regular imaging...it's a bit like buying a starburst filter: you use it for every highlighted image and then get bored with it.

I completely disagree. If you can't find more use for a fisheye than a starburst filter, you just don't know how to use it.

Flattening out a fisheye field of view has serious implications for quality. I have a GoPro with a 2.5mm lens. The software can provide a flat 16:9 image but the resulting distortions in horizontal and verticals rule out quality imaging. Far better to use a 'regular lens' in the first place than squash the fisheye flat.

If you turn a 180 degree view into rectilinear form, it will absolutely produce horrible distortion. It's not supposed to be corrected. It has a different function.

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