Lens review
2009-06-25
Carl Zeiss Distagon T* 35 mm f/2 ZF/ZK/ZS/ZE
5. Chromatic aberration
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A chromatic aberration graph of 2/35 Zeiss is a very interesting case. At f/2.0 and at f/2.8 CA is extremely low (value less than 0.05%). On stopping down the CA dramatically increases, at f/4.0 it achieves 0.09% and at f/5.6 over 0.12%. Next stopping down to f/8-22 shows no longer so rapid increase the CA but it still oscillate between 0.14-0.15% which is an average and even high result. We are slightly disappointed at this results especially that in the Zeiss 2/28 chromatic aberration was extremely well controlled (less than 0.1% in all over the aperture range). What is more, better results achieve the cheaper lenses with 2/35 but the most interesting is the fact that in the Canon 35L, chromatic aberration is the highest oscillating near 0.15% at every f-stop number.
