What is holding Sigma back with the new Merril(s)?

Started 5 months ago | Discussions thread
mike earussi Veteran Member • Posts: 9,127
Re: What is holding Sigma back with the new Merril(s)?

Tom Schum wrote:

mike earussi wrote:

xpatUSA wrote:

D Cox wrote:

A 20 Mpix Foveon is not enough for 24x36mm.

76 lp/mm at the sensor would be good enough for any lens except an Otus mebbe.

I've printed 24x36 images from my 14.7mp Merrill that look excellent when using Topaz Gigapixel AI (in Architectural mode) to enlarge the file. BTW, Foveon files uprez very well, much better than Bayer.

It would be interesting to find out if Topaz Gigapixel would do well with a fp L file that has been downsized to 1/4 original pixels. The quality of these pixels ought to equal that of the Merrill, pixel for pixel, should it not?

No, a Merrill sensor will still look different because of how it determines color. You'll have better DR with the Bayer but poorer color variations.

 mike earussi's gear list:mike earussi's gear list
Sigma SD1 Merrill Sigma 105mm F2.8 EX DG Macro Sigma 17-50mm F2.8 EX DC OS HSM Sigma APO Macro 180mm F2.8 EX DG OS HSM Sigma 70mm F2.8 DG Macro Art +1 more
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