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Forum: Pentax K-1 & K-1 II 01-16-2017, 09:49 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
The K-1, as with other Pentax flagship models has a DC power input intended for use with the K-AC132 AC power adapter. A suitable external battery pack may also be used. I don't have time to provide a list of links, but I believe there are a couple of do-it-yourself posts on this site detailing how to make your own.


Steve
Forum: Pentax K-1 & K-1 II 01-15-2017, 01:39 PM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
:eek::eek::eek:

Glad you survived...sorry about your gear.


Steve
Forum: Pentax K-1 & K-1 II 01-12-2017, 08:35 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
Excellent technical explanation.


Steve

(...but...but...but...Sony... :p )
Forum: Pentax K-1 & K-1 II 01-11-2017, 06:05 PM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
Sony too.


Steve
Forum: Pentax K-1 & K-1 II 01-11-2017, 06:00 PM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
I suspect there is a language or cultural issue here. To clarify a few points and explain the push back you often receive on this site:
  • The -10C number is the design specification, not the performance limit. The difference is real and not particularly subtle.

  • Most other camera makes have a low temp design spec of 0C

  • One is free to shoot at any temperature one pleases

  • If one "bricks" their camera at -32C and make the mistake of leaving one's most recent shots on the SD card, One should not expect warranty coverage when EXIF shows the internal temp at -25C. This is not bad faith on the part of the maker.

  • Unless one is a QA engineer, test-to-fail is not a valid use case, particularly if you don't want to risk "bricking" the camera

  • Intentionally "bricking" camera and then complaining about the operational specs is illogical

  • When operating out-of-spec, strange behavior is a matter of curiosity and not evidence of failure, inadequate design, or poor QC

  • Complaining about strange behavior for out-of-spec operation is bad form

  • Suggesting that that one no longer uses is better at out-of-spec operation than Pentax does not win friends or influence people on a Pentax-centric forum

  • Persisting in the above has resulted in unhappy mods in the past. In extreme cases, banishment for life has been employed. (I am not a mod, so not a threat...just an observation.)
















You Tube





Steve
Forum: Pentax K-1 & K-1 II 01-11-2017, 08:37 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
In Finland, that is spelled v-o-d-k-a ;)


Steve
Forum: Pentax K-1 & K-1 II 01-11-2017, 08:25 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
Finnish light, the rarest kind! 4 hours a day this time of year, eh?


Steve
Forum: Pentax K-1 & K-1 II 01-11-2017, 08:22 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
I suppose your bottled water does not freeze either?


Steve
Forum: Pentax K-1 & K-1 II 01-11-2017, 08:20 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
The sensor "floats" courtesy of electromagnets...perhaps the electrons are getting sticky??? My vote is for protective shutdown due to low voltage.


Steve
Forum: Pentax K-1 & K-1 II 01-06-2017, 03:54 PM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
You mean something like the covers suggested by @csa above?

https://www.pentaxforums.com/forums/190-pentax-k-1/337377-ibis-failure-28c-te...qm#post3872787


Steve
Forum: Pentax K-1 & K-1 II 01-06-2017, 11:41 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
Undocumented feature?

What you describe should also work on other bodies too, though at the cost of battery power.


Steve
Forum: Pentax K-1 & K-1 II 01-06-2017, 11:36 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
Yes, this is tempting, but can lead to condensation problems regardless of medium. Shooting in the cold is a pain.


Steve
Forum: Pentax K-1 & K-1 II 01-06-2017, 10:56 AM  
IBIS failure at -28C temp
Posted By stevebrot
Replies: 112
Views: 9,968
I suggest turning IBIS off when exposing the camera to long periods of extreme cold. I would also suggest that a conventional approach to pano work might be more satisfying than using sensor shift for that purpose. You might also want to consider taping a few hand warmers (either battery or chemical) to the camera body. I am friends with a pair of long-time wildlife photographers who have been using that solution for extreme cold going back to the early 1980s.



Film simply breaks inside the camera under those conditions and most shutters/film transports will jam unless the body has been winterized.


Steve

(...have shot film down to about -5 F, but no colder...brrrrrr)
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