Pentax SMC-DA 16-45mm f/4 ED AL Review at photozone

[KhoKing]

I just read about the review of the Pentax SMC-DA 16-45mm f/4 ED AL at photozone, it scores a very high mark in resolutions and distortion control, but poor in Chromatic Aberrations.

Here's the verdict quote from photozone:

The Pentax SMC-DA 16-45mm f/4 ED AL is an impressive standard zoom ... with a bug. The resolution figures indicate a very good resolution characteristic throughout the zoom range. Distortions and vignetting are quite typical for a good APS-C standard zoom. The only real problem are very pronounced CAs (color shadows) towards the wide end of the zoom range. For users not willing to do manual post-processing this may be a show stopper although the issue is correctable. The build quality of the lens is about in line to the rest of the gang. Both AF speed and accuracy are very good on the K10D. All-in-all a lens with a good price/performance ratio.

Have you ever experience any problem in excessive CA with this lens? Do share your photos that show CA taken with this lens.

Full review at:
http://www.photozone.de/8...s/pentax_1645_4/index.htm

[PeteD]

I can't say that I have seen any. Anyone got some suggestions how I could make it happen?

[Hythloday]

I just read about the review of the Pentax SMC-DA 16-45mm f/4 ED AL at photozone, it scores a very high mark in resolutions and distortion control, but poor in Chromatic Aberrations.

I think the test is quite correct. There is some CA. The DA12-24mm will get the same verdict as the DA16-45mm.

However, the CA is not much of a problem and it doesn't occur in every picture. Just when contrast is very high.

[Tom Brown]

I haven't noticed any CA, either.