Quality loss when i switch from Develop to Library, Astrophotography

Question

I have been going through the same process as i usually do. export to StarryLandscape stacker as a tiff... create image in StarryLandscape stacker then Import into the library in Lightroom. When i finish editing i switch from Develop to Library the image looses quality. Goes from a bright Milkyway to a dull Milkyway and exports the same when i export as jpeg and tiff. I have been through this process many times and never had this issue

Anyone have any idea how to fix this?

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D Fosse · Accepted Answer

Images with a lot of noise - and this qualifies as noise - must be viewed at 1:1 for an accurate assessment of adjustments. This maps one image pixel to exactly one screen pixel. With any other zoom ratio the preview is inaccurate.

This is because for performance reasons, the adjustment preview is calculated on the basis of the on-screen image. If this is a scaled and therefore softened version, that introduces intermediate values that are not there in the full original. The final adjustment works on the full pixel data, where blurry midtones are replaced with the original sharp transitions.

IOW - a tonal adjustment that seems to work in the preview, may in fact have little effect on the original data.

So again - View at 1:1.

michaelm38318677 · Answer

This is the image i see in develop before i click on libraryThis is the same image unedited but was exported

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