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Canon EOS Rebel SL1 / 100D Gordon Laing, May 2013
 
 

Canon EOS SL1 100D Multi-shot Noise Reduction

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  Canon EOS SL1 100D results
1 Canon EOS SL1 100D Quality JPEG
2 Canon EOS SL1 100D Quality RAW
3 Canon EOS SL1 100D Noise JPEG
4 Canon EOS SL1 100D Noise RAW
5 Canon EOS SL1 100D Multi-shot NR
6 Canon EOS SL1 100D Sample images

Canon's EOS SL1 / 100D inherits the composite shooting options of the EOS T4i / 650D and EOS M to reduce noise levels. The Multi-shot Noise Reduction mode takes a leaf from Sony by not only combining multiple shots, but also letting you manually choose the ISO sensitivity. The earlier Handheld Night Shot preset, still available in the Scene menu of the SL1 / 100D, operated with auto ISO, often choosing a higher value than you'd want.

Multi-shot Noise Reduction is selected from the High ISO Noise Reduction menu, but is greyed-out when the image quality is set to RAW or RAW+JPEG; this option is only available when the quality is set to JPEG alone. Once selected the camera operates as normal, letting you manually choose the sensitivity if desired. But when the shutter is triggered, the camera takes four consecutive shots and automatically combines them into one a few seconds later.


To put it to the test I captured images for the entire sensitivity range for single frame JPEGs and those with Multi-shot Noise Reduction applied. Between 100 and 400 ISO I'd say there's no benefit to using Multi-shot Noise Reduction, although at least there's no evidence of the softening we saw in previous tests compared to the single frame versions.

What is in common with earlier tests though is a difference in visible noise from 800 ISO and up. At 800 ISO the single frame JPEG has visible noise artefacts in flat areas which remain smooth on the version with Multi-shot Noise Reduction. Somewhere between 1600 and 3200 ISO, noise artefacts become apparent on the composite versions too, but less so than the single frames. This continues up to the maximum sensitivity but arguably with little more than a stop advantage over the single frame versions in noise levels. Like other composite modes, Multi-shot Noise Reduction isn't creating new detail, but acts as a good smoother of noise without compromising detail in the frame.

I'd say it's worth using above 800 ISO for subjects which are static, but it's shame it only applies to JPEGs. If you're after the ultimate quality you may find it better to shoot a single RAW frame and use more sophisticated noise reduction in software later.

Now let's check out a selection of Canon EOS SL1 / 100D sample images taken with the new EF-S 18-55mm STM kit lens!


Canon EOS SL1 / 100D JPEG
 
Canon EOS SL1 / 100D Multi-shot Noise Reduction
100 ISO
100 ISO MFNR
200 ISO
200 ISO MFNR
400 ISO
400 ISO MFNR
800 ISO
800 ISO MFNR
     
1600 ISO
1600 ISO MFNR
     
3200 ISO
3200 ISO MFNR
     
6400 ISO
6400 ISO MFNR
     
12800 ISO
12800 ISO MFNR

Canon EOS SL1 / 100D results : Quality / RAW quality / Noise / RAW Noise / Multi-Shot NR


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