05-22-2020, 02:52 PM
The EF 40mm f2.8 STM seems more attractive price and size wise than that Sigma (40mm) ;-)
This Irix is heavier than a Sigma 50mm f1.4 Art... That is quite a lot (except compared to the Sigma 40mm). It appears to render nicer than the Sigma, and be a bit sharper than the Sigma (at least at the edges), but that Sigma offers AF. For manual focus lens, I think I would prefer the Zeiss 50mm f1.4 Milvus over this Irix because it appears to render even nicer, but the Irix is quite a bit cheaper.
Choices, choices..
This Irix is heavier than a Sigma 50mm f1.4 Art... That is quite a lot (except compared to the Sigma 40mm). It appears to render nicer than the Sigma, and be a bit sharper than the Sigma (at least at the edges), but that Sigma offers AF. For manual focus lens, I think I would prefer the Zeiss 50mm f1.4 Milvus over this Irix because it appears to render even nicer, but the Irix is quite a bit cheaper.
Choices, choices..