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    LR reduces the size of my pictures when set 1:1 (sometimes!)

    Operating System:Macbook Pro 2015 on 10.11.6 Exact Lightroom Version (Help menu > System Info):5.7 I have been scanning some film and importing it into LR. If the scan is for example 5000x5000 pixels and I click on 1:1, then sometimes the picture will show at approximately 2 screens wide as it...