Rav Shlomo Zalman Auerbach: New Clothing During Sefira
Someone asked Rav Shlomo Zalman Auerbach (Aleihu Lo Yibol OC286) if it is permissible to buy new clothing during Sefira or to wear new clothing that require a Shehecheyanu. Rav Shlomo Zalman answered emphatically that it is permitted. Since it is not brought down anywhere that it is assur, it must be mutar.
That which the Mishna Brura (493:2) says that if something happens that requires you to make a Shehecheyanu comes up then you may make the bracha, indicates that you need not avoid something that will require the bracha.
Rav Avigdor Nebenzahl adds that those who are machmir take their minhag from Ashkenaz, where they were machmir because of the devastation of the Crusaders during this period.
Important Note: We bring this tshuvah as a starting point for discussion and not to convey any halacha. We try to convey the Tshuva to the best of our ability. We admit that our understanding may not be accurate. One should learn the tshuva to verify the accuracy of our interpretation. Please understand that this Tshuva may not be the final word on this topic. One should consult a Rav before drawing any conclusions.