Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2018 Mac mini up to 64GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$1000 $550
SAVE $450

$3498 $2998
SAVE $500

$4499 $2999
SAVE $1500

$2198 $1748
SAVE $450

$898 $698
SAVE $200

$2999 $1699
SAVE $1300

$799 $529
SAVE $270

$2397 $2197
SAVE $200

$130 $100
SAVE $30

$2397 $2197
SAVE $200

$1697 $1597
SAVE $100

$2998 $2798
SAVE $200

$2198 $1748
SAVE $450

$1799 $1599
SAVE $200

$2198 $1898
SAVE $300

Canon 5DS / 5DS R: mRAW is at Variance with Full-Resolution RAW in Several Ways

Get Canon 5DS DSLR at B&H Photo.

Presented in my review of the Canon 5DS R, I show that mRAW is more complex than simply a crop and a downsampling of full-resolution raw.

Canon 5DS R: RAW vs mRAW

The analysis includes the full-res image downsampled to match mRAW resolution, and compares it to the mRAW in two ways as well as three large 3-way crops (RAW, mRAW, mRAW with extra sharpening).

There are other differences that one should be aware of. At this time, my recommendation is to avoid mRAW entirely. sRAW looks more promising but off to the fireworks.

How mRAW is done by the Canon 5DS / 5DS R

To make an mRAW or sRAW image, in essence the Canon 5DS / 5DS R crops the 8688 X 5792 image size to 8640 X 5760, which is exactly 4/3X the dimensions of mRAW and 2X the dimensions of sRAW. The scaling from full resolution is thus 3/4 and 1/2 to get to the two smaller raw sizes (after the minor crop), and thus the mRAW and sRAW formats are slightly cropped from full frame.

RAW: 8688 X 5792 ==> 8640 X 5760
MRAW: 6480 X 4320
sRAW: 4320 X 2880


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

Sony a7R IVA Mirrorless Camera
$3498 $2998
SAVE $500

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.