05 Mar Quick Compare – Full Frame DOF vs APS-C DOF at the same aperture (Leica vs Fuji)

Source: Fujifilm Insider

Today I was shooting with my Leica SL and Fuji X100F The Leica SL has the Zeiss Zm 35 1.4 M mount attached, and the Fuji has its 23mm f/2 attached, giving a 35mm equivilant FOV. I LOVE BOTH OF THESE cameras right now but have been in love with the SL since it was launched (I only use it with M glass though the 24-90 is the best zoom I have ever used). It’s interesting seeing the differences in IQ between them in regards to color and DOF, ISO etc.

Speaking of Depth of Field, as always the Fuji lens will not give us the depth of field of the Zeiss ZM 35mm on the Leica SL as the SL is full frame and the Fuji is APS-C. We all know what that means in regards to DOF so I will not rehash it here. All the really matters to me, or anyone who uses these tools is the image, and what one can accomplish with a specific camera or a lens. I am not about scientific numbers or comparisons because while the Fuji at f/2 delivers DOF of a full frame 35mm lens at f/2.8, my SL will shoot and give me the DOF of 1.4 using this Zeiss lens. Again, the Fuji, it best will give the depth of field of f/2.8 when shot at f/2 when thinking in 35mm full frame terminology.

So to test the SL at f/2.8 against the Fuji, IMO, is nonsense because my SL will give me more power to shoot at the true aperture for DOF control and of course I will shoot it at f/1.4, quite often. I like to show comparisons in a real world way…as in, if I have an f/1.4 lens I will use it at f/1.4..etc. I work with the tool I have and exploit its strengths. So what I like to see is what each camera can do for me when wide open. What does the Fuji look and perform like at f/2? What does the Zeiss and Leica do when wide open at f/1.4? Honestly, I own both of these cameras and 90% of the time, they are shot wide open….

Quick Compare – Full Frame DOF vs APS-C DOF at the same aperture (Leica vs Fuji) posted on Fujifilm Insider on .

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