I am looking to buy a camera lens during the 9 days and wanted to see if Sepharadim allow it.
We shouldn’t buy expensive items during the nine days, unless it is needed for now. It is also not a good time to do business, and by buying it after the nine days you will have more or a siman bracha in it. This applies even for Sefardim.
Shulchan Aruch 551-2.