# \#custom-coadd

**URL:** https://www.rubin.community/tag/custom-coadd/532.md

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## [Difference between deep\_coadd and a custom coadd](https://www.rubin.community/t/difference-between-deep-coadd-and-a-custom-coadd/12758)

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**Author:** [@emdajhuda](https://www.rubin.community/u/emdajhuda)\
**Replies:** 4\
**Last updated:** [September 30, 2026, 9:28pm UTC](https://www.rubin.community/t/difference-between-deep-coadd-and-a-custom-coadd/12758 "2026-09-30T21:28:07Z")

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Custom coadd built from the same visits as the DP1 deep\_coadd does not match it — how should two coadds be compared? Hi everyone, I am testing the custom coadd workflow from tutorial 105.6 “Create custom coadd images” o…