Low-cost reversible tandem lens mesoscope for brain imaging in rodents.

"code and data availability data are available on figshare ( https://doi org/10 17608/k6 auckland c 6574579 ). data availability data are available on figshare"

"code is available on github ( https://github com/juliettecheyne/cheyne_lab )."

"Disclosures: The authors declare that they have no conflicts of interest in preparing the article."

"The authors would like to acknowledge funding from The Marsden Fund from the Royal Society of New Zealand-Te Apārangi (Grant No. 16-UOA-182), Auckland Medical Research Foundation (AMRF) (Grant No. 1116009), Neurological Foundation of New Zealand (Grant No, 1834 PG), Eisdell Moore Centre (Grant No. RRFS22-02), Faculty of Science Research Development Fund and Faculty of Medical and Health Sciences, University of Auckland, and Dodd Walls Centre of Research Excellence, which made this research possible. Additionally, the authors extend their immense gratitude to Dr. Johan Winnubst for creating the MATLAB Apps and scripts that they used for image processing."