Important of artifacts at 100% vs a sharp image at full size

futureal33

futureal33

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Morning all,

Something I've been meaning to post up about for a while, but never got round to it.

When sharpening an image, or dealing with noise reduction - do you work at 100% zoom, or full size?

I ask, because previously I have been working at 100% zoom - getting images sharp, but not to the point where at 100% you can see artifacting.
However, now, as I spend more time processing photos, I am finding myself working at full size more often, adjusting sharpening and noise at that zoom level, rather than 100%

In the below examples, these images have artifacting from oversharpening when you go to 100% zoom on the eyes - yet at full size, they look good.


Emilia Christening by futureal33, on Flickr


Carla Bridal Shoot by futureal33, on Flickr

I guess it depends a lot on the required output of the images, but often at the processing stage you have no idea whether the image will even look good when finished, let alone whether it will be printed large/small, displayed on FaceBook or printed onto a canvas etc.

So I just wondered what you do... work at full size, so it looks good at full size, or work at 100% so it looks good (clean) at 100% crop.

Thanks
 
If I am working on stock images it is always 100% or more as they are pernicity, if I am editing it can be 400%, if I am doing them for print I will usually work on them a bit bigger than the size they are going to be printed at. Whatever size I will zoom in and out as you often spot things when looking at overall picture that I cannot see when zoomed in.
 
Always at 100%. What is "full size" anyway?

Output sharpening should take care of getting the final image sharp at the correct display resolution.
 
Photoshop doesn't display sharpening/noise reduction correctly at anything other than 100%, it does a fair job at 25-50-75% but not as good.
I'm slightly confused by your 100% being different to full size, do you mean display size or after resizing?
 
Well, it depends on the size of monitor and how far away you are as to what artefacts you can see....

Personally, I sharpen at 100% and then apply further sharpening when I export from lightroom. I think LR resizes then resharpens the resize. Smaller images (less than 1024 longest edge) get sharpened as much as I can in LR.
 
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