Recent content by tricky66

Indeed, the Singh-Ray website, who promote their own VND which costs about 10 times that of the 7 Day Shop one, state: As I said, the cross issue is a function of the physics involved not the quality of the components. The overall IQ will, of course, be affected by the optical quality of the...

No, that's the symptom. The reason is the same as why the use of a polariser below around 17 mm gives issues in general. The wider the more pronounced the effect. Polarised light and hence the effect seen only covers about 90 degrees of the sky. When a lens field of view exceeds 90 degrees you...