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Match Zoom and Position When Comparing Two Lightroom Scans

By ImgHeal · Updated

A fair comparison uses the same subject region at a comparable scale. Lightroom Classic Compare View offers linked navigation controls, but you still need to check the source relationship and framing. A larger displayed face can look sharper even when its file contains no extra useful detail.

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Match the two actual files

Select the intended source and candidate, then confirm their filenames and dimensions. If one scan was cropped or resampled, record that before judging its appearance. Identify a fixed feature such as a collar edge or a line of writing that is present in both. Avoid choosing an area that has been reconstructed or obscured, because a changed feature cannot serve as a neutral alignment landmark.

Set linked viewing intentionally

Adobe describes Compare View's zoom and synchronization controls in Lightroom Classic. Review whether the views are locked together before panning. Align the shared landmark and inspect how the other file responds. If the crops differ, adjust the positions deliberately rather than assuming the same screen coordinates depict the same source location. Treat the lock as a navigation convenience, not a guarantee of geometric registration.

Judge detail separately from contrast

Compare fine text, facial edges, and surrounding texture at the matched view. Stronger contrast can create an impression of sharpness while reducing subtle tonal information. Also return to a whole-image view to check whether the local advantage comes with an awkward crop or damaged background. Note which candidate preserves readable evidence rather than choosing only the one with the boldest outlines.

Save a comparison note

Record the filenames, compared region, and relevant difference. If the decision concerns an ImgHeal restoration, keep the untouched source visible and label the generated candidate clearly. Export the accepted version under its own name, then open that file to verify the handoff. A matched Lightroom comparison helps make a judgment consistent, but it does not prove that plausible AI detail was present in the original.

Check this workflow before using the result

  • Confirm source and candidate filenames.
  • Align a shared landmark.
  • Compare detail and whole-image appearance.

Sources and further reading

Questions about this restoration task

Does synchronized zoom make different crops identical in scale?

Not necessarily. Check the visible subject size and crop relationship. Linked navigation does not replace alignment or knowledge of resampling.

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