For Canon, full frame lenses are expressed as “EF” lenses while crop frame lenses are expressed as “EF-S”. If a lens has “EF-S” in the title, it is for crop frame sensor DSLRs and cannot be used on full frame cameras. If the lens’ title has “EF” (no S) in it, then you can use that lens on either full frame or crop frame sensor
Alpha 7 IV. Beyond basic. For a new generation of imagemakers. With groundbreaking performance in both still and movie recording, the α7 IV is the ideal hybrid, providing breathtaking imagery along with on-the-spot delivery and distribution. The α7 IV is a camera designed to bring to life the artistic visions of today's creators.
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