Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
08-05-2016, 08:59 PM   #1
Loyal Site Supporter

Join Date: May 2014
Posts: 10
Weather-sealing and the Pentax 645z

Please pardon my ignorance. How well is the Pentax 645z weather-sealed? I.e., how much should I worry about rain, sea-spray, atmospheric humidity etc. when using a 645z?

08-05-2016, 09:05 PM   #2
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 41,819
It's pretty resilient. Prolonged light to medium rain shouldn't be a problem, and all the lenses are AW, which is the highest level of weather sealing Pentax offers. It also protects against dust and sand.

Adam Webmaster (Site Usage Guide | Site Help | My Photography)'s high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

08-06-2016, 01:49 AM   #3

Join Date: May 2011
Location: All over the place
Posts: 2,544
That's all the modern lenses, that is, of course.
08-06-2016, 03:01 AM   #4
Veteran Member
Kolor-Pikker's Avatar

Join Date: Dec 2014
Posts: 341
QuoteOriginally posted by Gurdur Quote
Please pardon my ignorance. How well is the Pentax 645z weather-sealed? I.e., how much should I worry about rain, sea-spray, atmospheric humidity etc. when using a 645z?

Good enough?

08-06-2016, 05:26 AM   #5
New Member

Join Date: Sep 2014
Posts: 19
I have used the 645z in pouring rain (and I mean pouring rain, not drizzle) on several occasions with the 28-45mm, 55mm, and 90mm (weather sealed lenses). I have also used it in super humid conditions (100% humidity in Guangzhou, China), and can't say I had any issues.

The first time I used the camera in the rain I was a bit nervous, so when I got back to the hotel room I quickly had a look at the camera to see if water had got inside. Not a drop.

If weather sealing is your main concern before you purchase the Z, then worry no more.
08-06-2016, 10:21 AM   #6
Veteran Member

Join Date: May 2011
Location: Big Island, Hawaii & Utah
Posts: 356
Likewise, I've used both the 645D and 645Z in torrential downpours with no problems.
08-06-2016, 10:25 AM   #7
New Member

Join Date: Aug 2016
Posts: 2
I haven't used the Z but my 645D holds up beautifully in the pouring west coast rain
08-06-2016, 10:31 AM   #8
Senior Member

Join Date: Nov 2010
Location: Calgary, Alberta
Posts: 270
I have shot my 645Z and 645D's for years in all kinds of weather conditions, with old and new lenses. Pouring rain, high humidity, high heat, super cold, strong wind (with dust and/or rain), etc. I've never had any weather related issues. I do wrap the camera body and some of the older lenses in some rain protection when needed, and I don't leave any of the rubber gaskets open (e.g. the remote cable socket cover) in a lot of rain. One of the best forms of weather sealing is simply not being reckless.

08-07-2016, 09:33 PM   #9
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,670
08-08-2016, 06:12 AM   #10
bobbotron's Avatar

Join Date: Jan 2015
Location: Ottawa, ON
Photos: Gallery
Posts: 1,869
Egads, that's pushing it!

Once I feel asleep and left my k3 outside during an star trail session. Woke up in the morning and it was coated in a thick, moist dew. I freaked out for a bit, but it was 100% fine.
08-10-2016, 11:05 AM   #11
Forum Member

Join Date: Dec 2015
Location: Back in France
Posts: 51
Mine experienced sea spray ( in fact a bit more than this : big waves crashing on the shore where I was trying night photography), enough to be completely soaked. I passed it under clear water in my bathroom after, and it is still working flawlessly !! Cold has never been a problem (except liquid crystals not so liquid anymore after more than one hour at -25 C)

Last edited by SylvainB; 08-10-2016 at 11:07 AM. Reason: Corrections

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
645d, 645z, camera, medium format, pentax
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
k3II and the weather sealing Greenneck Troubleshooting and Beginner Help 60 08-07-2016 03:12 AM
"Pentax Dust and Weather Sealing in Afghanistan" - 400 GRAND!!! Heie Pentax DSLR Discussion 8 10-09-2015 06:07 PM
Pentax weather sealing: is it the real deal? zoolander Troubleshooting and Beginner Help 5 12-14-2013 11:45 AM
Pentax Dust and Weather Sealing in Afghanistan Heie Pentax DSLR Discussion 60 05-30-2013 06:49 PM
Pentax weather sealing vs. Afghan dirt and water G_Money Pentax K-5 3 07-09-2012 08:32 AM

All times are GMT -7. The time now is 09:47 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]