Latest or all posts or last 15, 30, 90 or 180 days.
2024-03-18 23:58:48
Designed for the most demanding needs of photographers and videographers.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$3399 $2999
SAVE $400

$2997 $2997
SAVE $click

$348 $248
SAVE $100

$999 $699
SAVE $300

$5999 $4399
SAVE $1600

$1049 $879
SAVE $170

$4499 $3499
SAVE $1000

$999 $849
SAVE $150

$999 $799
SAVE $200

$5999 $4399
SAVE $1600

$799 $699
SAVE $100

$1199 $899
SAVE $300

$1099 $899
SAVE $200

$348 $248
SAVE $100

$1602 $998
SAVE $604

$3399 $2999
SAVE $400

$3997 $3697
SAVE $300

$5999 $4399
SAVE $1600

$1397 $997
SAVE $400

Sigma on “File Bloat”

Sigma sd Quattro
(APS-C sensor)

See my Sigma mirrorless wish list at B&H Photo.

See Sigma SD Quattro Mirrorless Cameras for more info as well as my in-depth reviews of Sigma DP Merrill and Sigma dp Quattro cameras.

From the Sigma marketing page under “The special characteristics of the 1:1:4 structure”.

High resolution is a necessary condition of outstanding image quality. At the same time, adding megapixels to increase resolution also results in a bloated image file size. The risk of file bloat is especially pertinent in the case of image data in the .raw format containing RGB information for every pixel location.

...

The Foveon X3 Quattro direct image sensor retains the three-layer vertical color capture of previous Foveon sensors while featuring the new ability to capture luminance information in the top layer and apply that information to the middle and bottom layers. This new structure has been the key to preventing file bloat, which may eventually have proved a problem for the 1:1:1 structure of the previous generation of Foveon sensors.

That’s rich, given the new X3I format in which files are 320-390MB each, a massive file bloat that about doubles the Pentax K1 SuperRes pixel shift mode raw files, which are from a 36MP sensor (vs 19.6MP for Sigma dp Quattro).

Size of Sigma sd Quattro X3I files range from 328 to 394 megabytes each

View all handpicked deals...

Nikon Z7 II Mirrorless Camera
$2997 $2997
SAVE $click

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | X.com/diglloyd
Copyright © 2022 diglloyd Inc, all rights reserved.