What your lens actually produces at 24mm

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Digital Nigel Forum Pro • Posts: 10,273
What your lens actually produces at 24mm

There is sometimes discussion here about extracting wider images from RX100 and RX10 RAW files, using products such as DxO PL. There are related discussions about just how much lens distortion has to be corrected at wide angles. So I decided to take a look.

Affinity Photo lets you scale the corrected image so you can see how much would normally be cropped from the corrected image. You get to see the distorted edges and heavy vignetting. People who only see OOC JPEGs or RAW files processed in ACR don't know what's being cropped from their images!

So, if you process from RAW using a suitable RAW processor, you have the option of producing significantly wider/taller crops than you get from the OOC JPEGs or with Adobe. Here's an example from my FZ1000:

You can get much wider and somewhat taller crops from these corrected, distorted images than the camera gives you.

Here's the result you get from an RX100M6/7, together with one of its competitors from Canon, as well as an RX10M3/4 and a full-frame 25-105mm G lens. All are shot at 24mm equivalent, in each case with a zoom lens starting at that point.

The RX100M6/7 lens distorts more than the older RX100 lenses

The Canon G7X has notoriously heavy distortion and vignetting at the widest zoom. This is the Mk 1 model, but the latest Mk 3 model has the same lens.

The RX10M3/4 is pretty good, considering the huge zoom range

By comparison, this is what you get with a full-frame G zoom lens:

Hardly any distortion to correct, or vignetting, with this quality, full-frame zoom lens

 Digital Nigel's gear list:Digital Nigel's gear list
Panasonic FZ1000 Canon PowerShot G7 X Nikon Coolpix P900 Panasonic ZS100 Sony RX10 III +18 more
Canon PowerShot G7 X Panasonic FZ1000 Sony Cyber-shot DSC-RX10 Sony RX100
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