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

Started 5 months ago | Discussions thread
Scottelly
Scottelly Forum Pro • Posts: 16,224
Re: What is holding Sigma back with the new Merrill(s)?

xpatUSA wrote:

Scottelly 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.

Huh? If that was the case, then we wouldn't see any more detail in our photos when we step up from the SD9, SD10, SD14, or SD15 to the SD1 Merrill, but as you know Ted, even when using a zoom lens, like the 17-50mm f2.8 EX OS there is a significant amount of extra detail in those Merrill images.

Huh? How do you measure "detail", Scott?

. . . or were you just joking?

Nope. I realize that numbers other than MP are anathema to your good self - but may I offer, apart from the Otus, the Sigma 65mm DG DN which goes just over 80 lp/mm at f/2.8 and f/4 in the center, which a 20MP full-frame Foveon would almost match and would certainly beat at all other settings or away from the center of the lens.

See for yourself :

https://www.lenstip.com/600.4-Lens_review-Sigma_C_65_mm_f_2_DG_DN_Image_resolution.html

I think at this point you're just being impractical, and shutting your eyes to the obvious Ted.

DP1

dp2 Quattro

Those are crops from these images at Imaging-Resource:

https://www.imaging-resource.com/PRODS/DP1/FULLRES/DP1hSLI100.JPG

https://www.imaging-resource.com/PRODS/sigma-dp2-quattro/FULLRES/DP2QhSLI0100H.JPG

Much more detail is visible in the image from the Quattro, as you and anyone else can see.

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Scott Barton Kennelly
https://www.bigprintphotos.com/

 Scottelly's gear list:Scottelly's gear list
Sony SLT-A65 Sigma SD1 Merrill Nikon D810 Sigma sd Quattro H Sony DT 18-55mm F3.5-5.6 SAM +26 more
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