Actually on closer inspection, the Sigma 20mm does show magenta fringing/CA. However I have the cameras lens optimisation set to Auto and it may be necessary to manually select the lens optimisation for this one. Oddly I have found some vignetting at f3.5 on my 85mm 1.8 lens. Never noticed it on film, but I've never really used it for this kind of subject matter before.

And it seems that dust on the rear objective of my lens caused some of the out of focus dust spots. So, so far only 1 dust spot on the sensor. Not so bad.


On 22 May 2004, at 12:01, Paul Freeman wrote:

I bought an SLR/c yesterday. I also went on the try before you buy that Kodak ran, but with the SLR/n. I've shot on the 24-70L, 85 1.8 and Sigma 20 f1.8 lenses this morning on the SLR/c

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