Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2020 iMac up to 128GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$217 $137
SAVE $80

$348 $298
SAVE $50

$899 $799
SAVE $100

$899 $769
SAVE $130

$597 $497
SAVE $100

$2597 $2397
SAVE $200

$1798 $1298
SAVE $500

$148 $138
SAVE $10

$1597 $1297
SAVE $300

$80 $30
SAVE $50

$600 $600
SAVE $click

$240 $175
SAVE $65

$683 $483
SAVE $200

$400 $270
SAVE $130

$1645 $1345
SAVE $300

$2106 $1476
SAVE $630

$1699 $949
SAVE $750

$1199 $1099
SAVE $100

$1199 $1099
SAVE $100

$999 $949
SAVE $50

$400 $270
SAVE $130

$1699 $949
SAVE $750

Pentax 645Z: Does Not Have EFC Shutter (Electronic First Curtain)

An electronic first curtain shutter (EFC shutter) is needed for vibration-free exposures.

According to Pentax, the Pentax 645Z does not have an electronic first curtain shutter. The 645z does have the same excellent mirror lockup feature as the 645D, and its shutter is generally well-damped (quite possibly no medium format camera has an EFC shutter). But a focal plane shutter is not and cannot be vibration free.

Like all DSLRs lacking an EFC shutter, longer lenses can be an issue: see Blur from the Shutter at 300mm in the review of the Pentax 645D.

Pentax 645z, rear view

Save the tax, we pay you back, instantly!
View all handpicked deals...

Sony WH-1000XM4 Wireless Noise-Canceling Over-Ear Headphones (Black)
$348 $298
SAVE $50

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.