Oly 7-14 Pro

[BobDavid]

First time I've had the chance to use the 7-14mm Pro zoom. I like it. This was shot @ 7mm. The horizon line is free of distortion.

[Kevin Raber]

Beautiful lens, review coming soon.

Kevin Raber

[Kevin Gallagher]

 Not enough blue in the shot bob 
 Just kidding' well done


Kevin in CT

[BobDavid]

Looking forward to the review. I cropped out a bit of the top of the sky; the horizon line was dead-center. I am every bit as happy with this lens as I was with the Nikon 14-24mm. I've no regrets over migrating to M43.

[stamper]

Someone willing to buy me one? I like what it has produced.

[Guillermo Luijk]

Looking forward to the review. I cropped out a bit of the top of the sky; the horizon line was dead-center. I am every bit as happy with this lens as I was with the Nikon 14-24mm. I've no regrets over migrating to M43.

Any lens is 100% free of geometric distortion in any straight line crossing the centre of the image, like your horizon. This applies even to fisheye lenses

[BobDavid]

Any lens is 100% free of geometric distortion in any straight line crossing the centre of the image, like your horizon. This applies even to fisheye lenses

I respectfully disagree. I've used a number of modern lenses over the years that show distortion. Due to the design of many fisheye lenses, it's not surprising that it is possible to get a "virtually" straight horizon.

With UWA zoom lenses, switch a grid on in Photoshop and see if the horizon lines up perfectly even with the grid. My erstwhile Nikon 14-24mm lens was very close, but not perfect. And that lens is highly regarded. The worst lens I recall using was the Canon 24-105 L.

Both of the pictures were shot at 7mm. The top one is handheld; I wanted to see if I could line up the top of the rails so they'd lay along same axis.

[Antonio Correia]

I have received my zoom lens a few days ago which I am using on a GX7
I am not very concerned about the horizon as I can see that some distortions are common in large wide angles.
I moved from full Canon frame with L lenses because they were too heavy and the m4/3 is a beauty.
The image herewith was made on 7mm

[PeterAit]

Yes, it's a very nice lens. It does have distortion, but that won't show up on a horizon that bisects the image. Yet, when the distortion is evident, it can be readily fixed in software. Great photos, too - just my sort of subject.

[GLJ]

I respectfully disagree. I've used a number of modern lenses over the years that show distortion.

I'm sure we'd all be interested in seeing some examples from ANY lens where a straight horizon/line bisecting the image directly in the middle as shown causes distortion!

[Antonio Correia]

Yes, it's a very nice lens. It does have distortion, but that won't show up on a horizon that bisects the image. Yet, when the distortion is evident, it can be readily fixed in software. Great photos, too - just my sort of subject.

Thank you Peter !
I will post more within the next days. I hope

[EinstStein]

First time I've had the chance to use the 7-14mm Pro zoom. I like it. This was shot @ 7mm. The horizon line is free of distortion.

Look at the cloud on the two sides, it look like the cloud has a center somewhere in the middle of the top half plan. It indicates a strong distortion.

[stamper]

Could it be the earth's curvature?

[BobDavid]

That's how ultra wide angle lenses "see." You'd get the same effect with a Nikon 14-24 and the Canon 11-24 too. Physics.

[Antonio Correia]

Perspective deformation caused by wide angle lens.
From my Bakery Photographic Project

[Guillermo Luijk]

That's how ultra wide angle lenses "see." You'd get the same effect with a Nikon 14-24 and the Canon 11-24 too. Physics.

A straight line that intersects the centre of the frame remains linear on its projection over the sensor, even in fisheye lenses, because of the rotational symmetry lenses are built.




The only Physics about your horizons is that the Earth is not flat.

Regards

[BobDavid]

A straight line that intersects the centre of the frame remains linear on its projection over the sensor, even in fisheye lenses, because of the rotational symmetry lenses are built.




The only Physics about your horizons is that the Earth is not flat.

Regards

I see a difference between rectilinear vs. fisheye. I'll agree to disagree.

[Guillermo Luijk]

In fact there is a big diference since the fisheye is a lens with radial changing focal length which turns straight lines into curved ones, EXCEPT for the lines crossing the centre of the frame. These remain linear which is what matters in the bent horizons discussion.

[Antonio Correia]

17mm f/2.8

[Antonio Correia]

Photograph only worked in LR
9mm f/2.8 Superb lens !