I would like to use my Olympus 60mm macro on my OM-1 more for insect and similar photography, initially using in camera focus stacking and maybe later using software that allows more images to be stacked. What would be a good flash gun (and diffuser?) setup to use at hopefully not too high a cost? I guess a good burst rate and capacity would help? Thanks
Kevin, the godox v350 is a very decent performer with fast enough recharging for focus stacking
A video from a YT OM macro channel comparing a couple of models he has several videos on this subject
As for diffusers there are a number of popular higher price options with the the AK and Cygnustech diffusers leading the way
https://wildmacro.de/macro-diffuser-comparison-cygnustech-diffuser-ak-diffuser-trick-bits-diffuser/
But you can get very good results with even the cheapest small foldable diffuser that abound on Amazon ebay etc
Or make your own there are a load of how to's on YT