Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2019 iMac up to 128GB

Sigma DP Merrill: ISO 100 or 200?

To my review of the Sigma DP1 / DP2 / DP3 Merrill is added an Sigma DP3 Merrill ISO 100 vs ISO 200 study.

I wanted to prove which ISO really delivers the best image quality, ISO 200 being the nominal native ISO of the Sigma/Foveon sensor, and ISO 100 ostensibly less recommended. Because I never just assume things on faith.

This carefully researched study includes an analysis of micro contrast, noise, color saturation in darker areas, detail in darker areas, and general image quality at ISO 100 vs ISO 200.

This study should be considered a MUST READ for any Sigma DP Merrill user. But it should probably be read by any digital camera user to stimulate thought about the choice of ISO.

Image below is a partial crop.

Portion of test scene, Sigma DP3 Merrill

Bruce Z writes:

Great article on the Sigma DP 100/200 ISO comparison. I would never have seen that much of a subtle difference until you posted such a finely tuned test scene. Once I see it, it becomes glaringly obvious. (Especially the near monochrome loss of color in the shadows of the Red material at 200 ISO) It's interesting to see the VERY slight difference in the specular highlights of the gold thread weave. Very subtle.

I am learning to see more as a photographer by following your postings. The real value of your work is the degree of intensity in the accuracy of the work.

DIGLLOYD: it’s what keeps it interesting: looking for insights.

OWC Thunderblade Thunderbolt 3 SSD
Gen 2!

Blazing fast, 1TB, 2TB, 4TB, 8TB.

Lloyd’s all-time favorite SSD!

√ No more slow and noisy hard drives!
128GB Memory in iMac 5K

Up to 128GB for 2019 iMac 5K!
Up to 64GB for 2015/2017 iMac 5K

Save nearly 50% over Apple pricing

MacPerformanceGuide.com
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 15 hours unless noted. Certain deals may last longer.
$1089 SAVE $610 = 35.0% $16 FREE ITEMS Canon 18x50 IS Image Stabilized Binocular in All Other Categories
$2797 SAVE $600 = 17.0% $246 FREE ITEMS Nikon Z 7 Mirrorless in Cameras: Mirrorless
$649 SAVE $250 = 27.0% $6 FREE ITEMS Sigma 35mm f/1.4 DG HSM Art in Lenses: Mirrorless
$1329 SAVE $170 = 11.0% ZEISS 18mm f/2.8 Batis in Lenses: Mirrorless
$1169 SAVE $130 = 10.0% ZEISS 25mm f/2 Batis in Lenses: Mirrorless
$1169 SAVE $130 = 10.0% ZEISS 40mm f/2 Batis CF in Lenses: Mirrorless

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.