Latest or all posts or last 15, 30, 90 or 180 days.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$60 $20
SAVE $40

$950 $700
SAVE $250

$1597 $997
SAVE $600

$1149 $1149
SAVE $0

$1499 $1259
SAVE $240

$400 $360
SAVE $40

$372 $247
SAVE $125

$9999 $2999
SAVE $7000

$4500 $3500
SAVE $1000

$70 $50
SAVE $20

$1000 $500
SAVE $500

$1398 $898
SAVE $500

$1499 $1249
SAVE $250

$829 $799
SAVE $30

$935 $549
SAVE $386

$309 $259
SAVE $49

$1300 $900
SAVE $400

$450 $280
SAVE $170

$1499 $1249
SAVE $250

$700 $600
SAVE $100

$349 $349
SAVE $0

$2000 $1270
SAVE $730

$1499 $779
SAVE $720

$450 $120
SAVE $330

$349 $349
SAVE $0

$150 $70
SAVE $80

$3998 $3498
SAVE $500

$150 $80
SAVE $70

$369 $175
SAVE $194

$1699 $1199
SAVE $500

$649 $449
SAVE $200

$1498 $998
SAVE $500

$999 $949
SAVE $50

$1099 $999
SAVE $100

$400 $320
SAVE $80

$2399 $2199
SAVE $200

$200 $95
SAVE $105

$200 $170
SAVE $30

$7697 $4997
SAVE $2700

Upgrade the memory of your 2019 iMac up to 128GB

Nikon D3x and Canon 5D Mark II long exposure noise

See also Jan 22 entry. Tonight I made some longer exposures on the Nikon D3x, D3 and the Canon 5D Mark II (mostly in the 30 second range). My findings will be written up in DAP soon, covering a range of ISOs with and without long exposure noise reduction (LENR). My interest is not just long exposures per se, but whether night-time images can stand up to scrutiny: streaking and hot pixels and other nasties are real issues to deal with.

Not so expected was the “christmas tree lights” performance of the Canon 5D Mark II, no matter what the ISO. This is one “dirty” sensor! (firmware version 1.0.7, I observed no “black dots”). You get what you pay for evidently; the 5DM2 is 1/3 the price of the D3x. Exposure times are effectively double with the 5D Mark II because without long exposure noise reduction (dark frame subtraction), you get stuff like this, all over the frame.


Canon 5D Mark II, ISO 200, 30 seconds, actual pixels

Hundreds of such such sprinkles over a 5D Mark II frame are not manageable. They do go away by turning on long exposure noise reduction, but this doubles the time it takes (eg 30 second exposure followed by 30 seconds of dark noise subtraction for a total time of 60 seconds). Not so fun for 15 minute exposures which are rather amazing on the D3x even without LENR.

The D3x can only be described as ridiculously “clean”, as might be expected based on the findings in Pushing the Blacks. The D3x doesn’t even activate long exposure noise reduction for less than 8 second or so exposures (at least not in tonight’s testing). I didn’t find even one such hot pixel in the same image from the D3x—not one, and that’s at the same 30 seconds with all noise reduction disabled.

OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
OWC Envoy Pro EX SSD
Blazingly fast USB-C SSD!

Up to 4TB capacity, USB-C compatible with Thunderbolt 3.

√ Fastest USB drive MPG has tested!

Our trusted photo rental store

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.