Latest or all posts or last 15, 30, 90 or 180 days.
Memory Upgrades for 2019 Mac Pro - Save Up to 65% vs Factory Costs
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$2699 $2199
SAVE $500

$2699 $2099
SAVE $600

$290 $203
SAVE $87

$130 $115
SAVE $15

$100 $40
SAVE $60

$3498 $3198
SAVE $300

$2347 $1897
SAVE $450

$1297 $1097
SAVE $200

$597 $497
SAVE $100

$2297 $1997
SAVE $300

$699 $499
SAVE $200

$60 $40
SAVE $20

$1699 $1199
SAVE $500

$1997 $1097
SAVE $900

$1499 $1379
SAVE $120

$372 $247
SAVE $125

$9999 $2999
SAVE $7000

$4500 $3500
SAVE $1000

$1000 $500
SAVE $500

$1398 $898
SAVE $500

$935 $549
SAVE $386

$309 $259
SAVE $49

$1300 $900
SAVE $400

$450 $280
SAVE $170

$700 $600
SAVE $100

$2000 $1270
SAVE $730

$1499 $779
SAVE $720

$450 $120
SAVE $330

$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 $300
SAVE $100

$7697 $4997
SAVE $2700

OWC
Blast off into savings!


DIY upgrades, computing essentials and more from OWC.

Photographers Ask Sony to Address the A7R Shutter Vibration Issue (Update)

Sony A7R with FE 55/1.8 Sonnar

Two “research and mitigation” links added to Photographers Ask Sony to Address the A7R Shutter Vibration Issue.

I’m currently shooting the Sony A7, which has an electronic first curtain shutter (EFC shutter) which avoids the shutter vibration issues (ditto for any leaf shutter camera like the Sony RX1R or Sigma DP Merrill or Leica X Vario, or DSLR with EFC, like the Canon 5D Mark III “mode II”).

For my needs in evaluating lenses, it is unacceptable to introduce a shutter shake variable into the equation—no lens evaluation can be valid with it, at least not under field conditions; see the damage this caused in the Red Barn example. Moreover, the majority of my shooting is precisely in the range of “dangerous” shutter speeds. So for my evaluation work the 36MP A7R is not an option; I’m settling for the 24-megapixel Sony A7 for the E-mount platform.

The increase in resolving power is 1.22X for 36 versus 24 megapixels (√(36/24), a clearly visible but not huge gain that requires ideal parameters: high lens performance, perfect focus and no shutter shake. For lens behaviors the difference is not meaningful; any issues can be detected at 24 megapixels, though certain interactive behaviors (ray angle) can be sensor specific.


Save the tax, we pay you back, instantly!

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.