When I did my review of the Hasselblad XCD 135/2.8 a few weeks ago, a few people asked me to compare it to the venerable Zeiss 135mm f/2 Apo-Sonnar. It took me a while to dig up the lens, but I finally found it, and ran my usual Siemens star test, using the Zeiss version of the star. I tested with the Hasselblad 907X/CFV 100C, which has the same sensor as the X2D 100C that I used when I tested the XCD 135/2.8.
The particulars:
- Edelkrone Tripod X Pro
- Arca Swiss C1
- Manual exposure
- MS for XCD 135/2.8, ES for 135/2 Apo Sonnar
- ISO 64
- Delay set to 5 seconds
- Six shots per f-stop
- Target centered
- f/2, f/2.8, f/4, f/5.6, f/8
- Developed in Lr with default settings except for white balance and sharpening set to 0
Here’s the scene with the Zeiss lens on the 907X/CFV 100C:
You can see striping from the Hasselblad electronic shutter interacting with the LED illumination.
Crops at about 150% magnification:
At f/2.8., the Zeiss has substantially more contrast, but both are exceeding the resolution of the sensor.
The Zeiss is still sharper.
About the same.
Also about the same. Limited by diffraction.
Next up: Siemens star in the corner.
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