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Center Filter for Thambar-M 90mm f/2.2, E49, black

12456

£240.00  
is buyable: yes

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  • 12456
The essentials: Suitable for Thambar-M 90mm f/2.2 (11697) Product description: The... more
Product information Center Filter for Thambar-M 90mm f/2.2, E49, black

The essentials:

  • Suitable for Thambar-M 90mm f/2.2 (11697)

Product description:

The soft-focus effect of the Thambar is achieved by the deliberate preservation of a spherical flaw, which is normally corrected using complex optical calculations. Spherical aberration is caused by the lens’ perimeter rays – which is why it is minimised by stopping down. The Thambar’s screw-on centre spot filter consequently offers the opposite effect to stopping down, as it blocks the axial rays and only allows the perimeter rays to pass.

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