Sharpest wide Opened? - 50 summicron (non APO) vs 50 summilux (latest versions of both)

[Rick in CO]

Advertisement (gone after registration)

On 8/28/2023 at 12:44 PM, Huss said:

The problem is they input obviously incorrect data for the 50 Cron - at all apertures tested it shows identical results center, mid, edge.  

I have both the 50 Cron v5 and the Lux Asph, and unless I need 1.4 I just find the Cron so much more enjoyable to use.  The focus throw is lighter and shorter/quicker so it is very rapid to use.  And just feels perfect.  Both lenses are amazing optically (apart from both sucking at flare resistance) and you can (and should) rent both before making a purchase.  Or go to your local Leica Store - there is one in Boston - to try both out.

Yes, maybe the data is not correct as the lens is stopped down, but the stated open aperture value is significantly lower than the Summilux or APO Summicron.  In a previously published test the Summicron was similarly lower than the Summilux on the M9.  I don't think anyone would argue that the Summicron is sharper at open aperture than the Summilux or Apo Summicron, but there are other factors, as you point out, that one can consider.

[Advertisement]

The Leica Q3 is available for pre-order at B&H Photo Video and Adorama