Latest or all posts or last 15, 30, 90 or 180 days.
Memory Upgrades for 2019 Mac Pro - Save Up to 65% vs Factory Costs
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$155 $100
SAVE $55

$2198 $1998
SAVE $200

$1799 $1599
SAVE $200

$999 $779
SAVE $220

$2397 $1897
SAVE $500

$1299 $949
SAVE $350

$799 $549
SAVE $250

$1499 $999
SAVE $500

$799 $549
SAVE $250

$2797 $2497
SAVE $300

$1997 $1797
SAVE $200

$549 $499
SAVE $50

$1699 $949
SAVE $750

$240 $175
SAVE $65

$3399 $2699
SAVE $700

$1100 $880
SAVE $220

Nikon D850 Monochrome: Blending Two Exposure Bracketed Frames for a 4X Reduction in Noise

Background: The Nikon D850 monochrome is a Nikon D850 with its color filter array (CFA) removed by maxmax.com. The NEF files are converted to monochrome DNG via LibRaw Monochrome2DNG and “Method B”, then processed using Adobe Camera Raw. Doing so avoids any demosaicing and thus retains full spatial resolution.

This page looks at using exposure bracketing with the goal of blending frames for reducing noise and extending dynamic range, as applied in black and white from images taken on the Nikon D850 monochrome.

Nikon D850 monochrome

Anyone having gone to the trouble of shooting an exotic camera like a Nikon D850 monochrome will presumably want to get the very best from it—and as good as it is in a single shot with terrific dynamic range, it can be spectacular with some additional effort, as shown here.

I considered frame averaging for this same scene—shot the frames and tried on the computer—but wind causes motion and that is a problem for frame averaging at least without a lot of touchup—it blurs water and grass and anything moving. Plus if the wind should happen to move the camera 1/2 or 1/4 pixel between frames, details soften.

Blending Frames for Low Noise, Dynamic Range (Twenty Lakes Basin View To Mt Conness Eastern Ridge)

Includes images up to full camera resolution for single shot versus frame blending, plus a 182 megapixel version of the blended frame upscaled using Gigapixel AI.

Twenty Lakes Basin View To Mt Conness Eastern Ridge
f8 @ 0.8 sec electronic shutter, ISO 31; 2019-09-26 18:07:25
NIKON D850 monochrome + Zeiss Milvus 35mm f/1.4 + filter B+W Dark Red 091
ENV: Twenty Lakes Basin, altitude 10350 ft / 3155 m, 53°F / 11°C
RAW: USM {12,50,0}

[low-res image for bot]

 


Best Deals, Updated Weekly
View all handpicked deals...

Sony FE 24-70mm f/2.8 GM Lens
$2198 $1998
SAVE $200

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2021 diglloyd Inc, all rights reserved.