Latest or all posts or last 15, 30, 90 or 180 days.
Get up to 16x more storage and 2x the speeds of the original drive

File Size as a Measure of Optical Performance

File sizes across aperture for
D800 + Zeiss 100/2 Makro-Planar

RAW file size (lossless-compressed variants) for the same scene across apertures is an excellent measure of the total detail recorded, which includes the effects of depth of field, diffraction, and lens performance.

With a planar scene (which eliminates depth of field as a variable), file sizes can tell you exactly where peak lens performance is reached in terms of recorded detail.

For the example at right, the scene is not strictly planar; there is some foreground and some background and the camera is tilted up slightly. Still, it’s mostly planar.

Observe that the peak file size is reached at f/4, indicating that the maximum amount of detail is being recorded.

Aperture f/5.6 maintains this file size, but diffraction begins to soften detail at f/8, which thus drops the file size.


MacPerformanceGuide.com
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 12 hours unless noted. Certain deals may last longer.
$35 SAVE $115 = 76.0% Lowepro DroneGuard CS 400 in Video: Drones
$2797 SAVE $600 = 17.0% $246 FREE ITEMS Nikon Z 7 Mirrorless in Cameras: Mirrorless
$2798 SAVE $400 = 12.0% Sony a7R III Mirrorless in Cameras: Mirrorless
$3498 SAVE $1000 = 22.0% Sony a9 Mirrorless in Cameras: Mirrorless
$898 SAVE $100 = 10.0% $161 FREE ITEMS Sony DSC-RX100 VA in Cameras: Point and Shoot
$1879 SAVE $1071 = 36.0% ZEISS 15mm f/2.8 Distagon T* ZE in Lenses: DSLR

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.