RX100 optics heavily corrected

Started Aug 3, 2012 | Discussions
Andi Buchner Senior Member • Posts: 1,117
RX100 optics heavily corrected

When I compared an uncorrected RAW vs. OOC JPEG I realized the Zeiss lens needs heavy correction. The distortion is heavy and also CA’s need some correction.

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

Finally the Sony in-camera correction does a good job
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 Andi Buchner's gear list:Andi Buchner's gear list
Sony E 10-18mm F4 OSS
Sony RX100
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ManuH
ManuH Veteran Member • Posts: 3,898
Re: RX100 optics heavily corrected

Andi Buchner wrote:

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

They can but the lens would probably much bigger and more expensive.

d3xmeister Veteran Member • Posts: 3,386
Re: RX100 optics heavily corrected

ManuH wrote:

Andi Buchner wrote:

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

They can but the lens would probably much bigger and more expensive.

But don't they need to make the lens much wider to have room for crop after correction ? Why not just make a less wide lens in the first place that does not need correction ?

Jogger
Jogger Veteran Member • Posts: 8,441
Re: RX100 optics heavily corrected

this is probably why the corners are so bad

Andi Buchner wrote:

When I compared an uncorrected RAW vs. OOC JPEG I realized the Zeiss lens needs heavy correction. The distortion is heavy and also CA’s need some correction.

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

Finally the Sony in-camera correction does a good job
--
http://www.flickr.com/photos/26483638@N02
http://www.pbase.com/anbuccos
pbase supporter
http://picasaweb.google.com/andi.buchner

 Jogger's gear list:Jogger's gear list
Sony RX100 Sony Cyber-shot DSC-RX10 Nikon D700 Nikon Df Nikon AF-S Nikkor 70-200mm f/2.8G ED VR +4 more
ManuH
ManuH Veteran Member • Posts: 3,898
Re: RX100 optics heavily corrected

d3xmeister wrote:

ManuH wrote:

Andi Buchner wrote:

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

They can but the lens would probably much bigger and more expensive.

But don't they need to make the lens much wider to have room for crop after correction ? Why not just make a less wide lens in the first place that does not need correction ?

I don't think one minute they didn't have thought about it. They don't make these horrendous distortions just for fun In optics everything is a trade off.

Somonica
Somonica Regular Member • Posts: 122
Re: RX100 optics heavily corrected

see! one more reason to return your RX100...

missed the "good old day" of the clean RAW file?

and that 35mm "wide" and 3 inches thick camera?

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Sony RX100 Sony Cyber-shot DSC-HX50V Sony RX100 VI Sony Xperia Z3 Compact +1 more
Coyote_Cody Senior Member • Posts: 1,166
Re: RX100 optics heavily corrected

You are surprised at this? Where have you seen a small P&S that does NOT have huge distortions?

Oh, that's right, they hide it via only providing corrected/cropped jpegs!

Enjoy your camera and the raw capability!!
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Evadremlu
Evadremlu Regular Member • Posts: 136
Re: RX100 optics heavily corrected

What you are seeing is the Future of Camera Lens technology. Lens designed to gather light best way it can, then use a computer to correct any distortions.

Eventually we'll probably have Fly's Eye lenses that distort like crazy but alas the computer will correct all that.

Enjoy!

 Evadremlu's gear list:Evadremlu's gear list
Canon PowerShot SX210 IS Sony RX100 Sony Cyber-shot DSC-HX50V
Elieser Forum Member • Posts: 59
Re: RX100 optics heavily corrected

Adobe Photoshop is not only one possibility.
There are Free Gnu GIMP and UFRaw Redactor.

They possess ability to correct distorsion. Not automatic though, user regulated.
Could they today work with Sony RX100 Raw version? I don't know.

If not, it is possible at first process and convert RAW Image to Jpeg with proprietary Sony's Instrument, and afterward correct distorsion in Jpeg with Gimp.

http://www.gimp.org/
http://gimptips.com/articles/editing-raw-images-gimp
http://docs.gimp.org/en/plug-in-lens-distortion.html

LaFonte Senior Member • Posts: 2,877
Re: RX100 optics heavily corrected

A corrected lens on such large chip would need to be far, far bigger because you would only use the middle of the lens circle where is not so much distortion.

Andi Buchner wrote:

When I compared an uncorrected RAW vs. OOC JPEG I realized the Zeiss lens needs heavy correction. The distortion is heavy and also CA’s need some correction.

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

Finally the Sony in-camera correction does a good job
--
http://www.flickr.com/photos/26483638@N02
http://www.pbase.com/anbuccos
pbase supporter
http://picasaweb.google.com/andi.buchner

 LaFonte's gear list:LaFonte's gear list
Fujifilm FinePix X100 Fujifilm X-Pro1 Fujifilm X-T1 Fujifilm X-H1 +2 more
BG454 Veteran Member • Posts: 7,345
Re: RX100 optics heavily corrected

Andi Buchner wrote:

When I compared an uncorrected RAW vs. OOC JPEG I realized the Zeiss lens needs heavy correction. The distortion is heavy and also CA’s need some correction.

Shooting a wall close-up with a wide angle lens is bound to produce distortion, since the edges of the image are much further away than the centre. The human eye responds in exactly the same way, except we are less aware of it. Stare at the wall from a close distance and at the same time be aware (without shifting your gaze) of the apparent curvature at the edges of your vision. It's not always easy to do but you can see the distortion. The wide angle lens responds in exactly the same way. It's not showing distortion, just rendering the view accurately. In a sense the "corrected" version is the distorted one, not the uncorrected one. (The CA is another matter entirely.)

If you want to render a flat field image of a wall (or anything else), stand well back and use a telephoto lens, not a wide angle at close distance.

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To err is Human. To really foul things up you need a computer.

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gulffish
gulffish Senior Member • Posts: 2,179
Re: RX100 optics heavily corrected

Andi Buchner wrote:

I first realized this when I shot RAW with my m4/3 with the 7-14 Panasonic lens.

Really don’t know what’s the reason for this. Are the engineers no longer capable for calculating good lenses with no or low distortion?

Yes they can but we couldn't afford the cameras if they did. Calculating isn't the issue.

Finally the Sony in-camera correction does a good job
--
http://www.flickr.com/photos/26483638@N02
http://www.pbase.com/anbuccos
pbase supporter
http://picasaweb.google.com/andi.buchner

-- hide signature --

Kirk

 gulffish's gear list:gulffish's gear list
Sony RX100 III Sony E 70-350mm F4.5-6.3 G OSS
aerorail Contributing Member • Posts: 963
not news

it's been shown at other sites comparing raw to jpg correction

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Sony RX100 III
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