Spring is a time of new beginnings, including for photographers. Whether that means stepping into a first interchangeable lens camera or upgrading an existing kit, it’s a good time to upgrade. With a wide range of discounts on mirrorless systems right now, it’s a good time to reassess which gear fits your workflow. This week’s deals focus primarily on mirrorless cameras, with options spanning beginner-friendly kits, versatile mid-range bodies, and high-end professional systems. A few DSLRs remain in the mix for those who prefer an optical viewfinder or are invested in legacy lenses.…