Latest or all posts or last 15, 30, 90 or 180 days.
Welcome to
In-depth review coverage is by subscription.
Also by Lloyd: and
First-time visitor
Rigorously lab tested and OWC certified.

Why Is an ƒ/1.2 Lens so Dark on Digital?

How can an ƒ/1.2 lens be as dark as T/1.5? This is no simple vignetting behavior, but notably more involved, namely the properties of a digital sensor with respect to ray angle.

I’ve added a new page Loss of Lens Brightness at Fast Apertures on a Digital Sensor to Making Sharp Images. The page shows three scenes using two lenses on two different digital cameras.

Our trusted photo rental store
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 10 hours unless noted. Certain deals may last longer.
$2299 SAVE $500 = 17.0% Canon EOS 5D Mark III DSLR in Cameras: DSLR
$2297 SAVE $800 = 25.0% Nikon D750 DSLR with 24-120mm in Cameras: DSLR

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2008-2017 diglloyd Inc, all rights reserved.