So it'll be late fall when the second shipment comes anyhow... temperature will be less of an issue then...
And don't they test their cameras for months prior to release?
Just do it Canon. I've been wanting one for a decade.
-- a current owner of the 1.8 STM and 1.4 USM, former owner of the 2.5 Macro, the 1.8 II, the Sigma 1.4, and the 1.4 ART.
Is that everybody now? Nikon, Sony, Sigma, Tamron, Zeiss Milvus, Tokina... all 35mm lens manufacturers except Canon have a modern and reasonably priced 50mm/1.4 younger than models I shoot.