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
Upgrade the memory of your 2018 Mac mini up to 64GB
Small Business Tax Write-Off?
Now is the time to purchase computer or photo gear for 2018 federal tax write-off. Consult with Lloyd.

Lens Shock Testing

Our trusted photo rentals

In regards to an email comment from a reader on the right side softness with the Sony 35mm f/1.4 Distagon test lens (bad sample) and possible issues from shipping, I asked Zeiss about whether lenses could “go bad” in transit, e.g., while if dropped off the UPS truck.

Obviously, that specific question is not one that Zeiss or any other company can directly address for any particular lens or scenario described in email, but there are protocols for durability.

Protocols for testing shock to a lens

Here, note that the “dedicated box” would also be inside a shipping box, further reducing g-force issues. It seems rather unlikely that a lens could “go bad” by being shipped via UPS or FedEx, especially if no signs whatsoever are seen of any crushing of the box. Hence my feeling that the bad sample I received came that way from the factory.

We run tests of lenses in shipping conditions to check the design of the dedicated box.

The lens should withstand the following “torture” without an issue:

  • Endurance shocks: 10 g / 6 ms ; 1000 shocks per axis and direction ; Standard: ISO 9022 Series -3 -31 -01
  • Bouncing: 1.1 g ; 10 min per side / total of 60 min; Standard: ISO 9022 Series -3 -34 -02
  • Free fall: 1.0 m drop height, 2 times per side; Standard: ISO 9022 Series -3 -33 -06

We do not run tests with Zeiss-branded products which are distributed by SONY, but they certainly apply similar standards.

Of course this can never guarantee to 100% that nothing harmful can happen to the product.

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.