At 3/21/2023 03:25 PM, Mike wrote:
>Nothing really is spectacular it seems. The MZ 7-14/2.8 is good enough accept
>at 7mm. If doing astro, AF is a blessing as starry sky AF is so consistently
>good.
>
>https://www.dpreview.com/articles/9708502215/go-wide-a-look-at-four-top-ultra-wide-primes-for-micro-four-thirds
>
>The PL 9/1.7 is quite small and not bad. If one looks at the raw files with a
>converter that doesn't process the imbedded corrections, it has a ton of
>barrel distortion!
>There are very few astro images with it to be found so not sure how the
>converters correct the distortion and whether they stretch the stars in
>corners or not.
>I've never seen a coma analysis using a converter that doesn't do the
>corrections.
>
>https://www.lenstip.com/641.7-Lens_review-Panasonic_Leica_DG_Summilux_9_mm_f_1.7_ASPH_Coma__astigmatism_and_bokeh.html
>
>https://www.lenstip.com/465.7-Lens_review-Olympus_M.Zuiko_Digital_7-14_mm_f_2.8_ED_PRO_Coma__astigmatism_and_bokeh.html
>
>It looks better than the MZ zoom at 7mm but that is the weakest focal length
>for distortion with that lens.
>
>OM systems needs to get off their duff and optimize a UWA prime for such use
>since the cams are so durn easy to use for this application.
Just a side note that DPReview will be shutting down April 10.
WayneS
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