Applications for DSLR Photometry?

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David Bennett

Just starting out on Photometry and learning using a Nikon with a wide field lens on tripod.  Exposures can be short enough for Betelgeuse and Algol as targets.   Would like to know what’s the best application for DSLR photometry?   I have been following AAVSO documents and used IRIS. Got as far as instrumental magnitudes but now want to convert to visual.  I see talk on spreadsheets for this last step but can’t find a location to download a copy? Other applications mentioned and would consider trying them out if better than IRIS. Suggestions welcomed. Thanks.