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

Noise on 4 cameras

See also Jan 7 entry. I have an extensive noise study in the works (for DAP) comparing the Nikon D3x, D3, Canon EOS 1Ds Mark III and EOS 5D Mark II. In it, I’ll address what the real world issues are from ISO 50 through ISO 25,600.

It’s taken me longer than I’d have liked for a few reasons—shooting and analysis take considerable time and effort, and I found enough interesting issues that required exploration that I re-shot my original tests to confirm some very interesting findings.

Even at low ISO values, noise is relevant, especially if you’re a fine-arts photographer looking for clean blacks, and extracting detail in darker areas (see Noise and Multiple Exposures). The example below shows horizontal streaks, and this is at ISO 100! ISO 50 fares little better. Some cameras do this, even medium format cameras, and some do not.


Pattern Noise (streaks) at ISO 100

My exploration of noise is not going to offer the naive shot of the Macbeth color checker card often seen (though I include one). Nor are the mathematical noise graphs of much use in understanding how a camera behaves with real images—the issues of banding/streaking, how very dark areas perform, usable dynamic range and color rendition in dark areas all come into play in a complex way, which makes it important to treat the subject fairly across multiple cameras.

Unfortunately life often deals some setbacks and my writeup has been delayed due to recent illness, so publication has been pushed back a bit.

128GB Memory in iMac 5K

Up to 128GB for 2019 iMac 5K!
Up to 64GB for 2015/2017 iMac 5K

Save nearly 50% over Apple pricing
OWC Thunderblade Thunderbolt 3 SSD
Gen 2!

Blazing fast, 1TB, 2TB, 4TB, 8TB.

Lloyd’s all-time favorite SSD!

√ No more slow and noisy hard drives!

MacPerformanceGuide.com
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 20 hours unless noted. Certain deals may last longer.

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.