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08-04-2016, 08:31 PM   #1
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interval composite issue with the k1

i think i'm the only one having this issue as i did a search and came up empty...

a few weeks ago i went out for star trails for the first time. the results came out awesome, though random...

seeing a pic of 'star stream', i thought that was used to make a picture of star trail. that wasn't the case, as that just recorded a video instead. (whats the difference between the star stream vs interval movie record setting?)

then i tried 'interval composite' and achieved the result i wanted. great.

i tried experimenting with this and i'm not getting the camera to function the way i want it to.
ive read the instruction manual, and that isn't of much help as its telling me what the camera CAN do, but not how...

so the issue i'm having is that if i set the camera to 30 second shutter speed, and i set 30 shots (15 minutes), with a 2 second between each picture, the camera starts taking pictures, and after 2 to 3 shots, it shows a message saying 'interval composite complete' or something of that nature...i was expecting 30 shots, why is it giving me 2 or 3 (randomly changes) and then stops taking pictures...sometimes it doesn't even say that its done shooting, it just stops taking pictures...

now, i experimented with different settings, and i cant seem to recreate that shooting from the first day, even if i have the exact same settings.

now, the only thing i can possibly think of in what i'm doing wrong is reading the timing wrong. when it shows 00:00:00, i'm assuming its hours, minutes, seconds. initially when i had it set for 45 second interval between the shots, i noticed a huge 'zipper' pattern in the pics, as the camera wasn't taking any pics between that interval, and the stars would move ever so slightly. so i reduced that to 2 seconds (minimum setting), and thats when the issue starts occurring... it just stops taking pictures after 2 or 3 pics at ANY shutter speed between 10-30 seconds. its fine with lesser speed.

i then increased the interval delay to 10 seconds, and same issue. and the interval is NOT 10 seconds. it seems to be about 4 seconds. and after 2 or 3 pics, the camera would either display that its done shooting, or it would just stop taking pics.

i increased the shutter to 21 seconds, and this time, its about a 9 second delay between pics and it seems to be doing the trick. but this is also causing the 'zipper' pattern, and it wont take the desired shots i had set the camera for. if i set it for 30 shots (15 minutes), it will only take, maybe 20 pics, and then either show the display that shooting is done...or it will just stop taking pics...


what gives?

08-04-2016, 08:39 PM   #2
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Hi, Hadi. The K-1 has a new option that may help in your case. If you go to Menu C->2->13 and change that to "2" Standby Interval, then the exposure begins after the standby interval you have selected between shots which is what most people want. Try it out next time you are set up.
08-04-2016, 08:45 PM   #3
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QuoteOriginally posted by hadi Quote
seeing a pic of 'star stream', i thought that was used to make a picture of star trail. that wasn't the case, as that just recorded a video instead. (whats the difference between the star stream vs interval movie record setting?)
Star stream stacks images, whereas interval movie just merges frames into a video file sequentially.

jbinpg answered the bigger question, though. You can also just add the exposure to the interval time to get the result you want.

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08-05-2016, 09:22 AM   #4
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I tried the starstream again, and i still see it making a video. It is stacking all the pics and leading it to the end result, but still a video. Where as the interval movie seems more like a time-lapse?

And i tried what was suggested above, and though it shrank the timing between shots, im still limited by 2 to 3 shots

:s

08-09-2016, 10:40 PM   #5
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QuoteOriginally posted by hadi Quote
And i tried what was suggested above, and though it shrank the timing between shots, im still limited by 2 to 3 shots
@ Hadi, I figured I had the same problem as you describe. And I found why. So, if you are still interested I share here my findings.

1) For start trail photo in multiexposures, you have to use the drive mode INT + Composite.
2) Interval time must be 1 second + exposure time. For example, if exposure time is 25 second, interval must be 26 seconds or more
3) Bug: Interval time must be smaller than 30 seconds, software bug if the interval time is 31 second or more , the camera will take one, two or three shots and the interval shooting will stop with a message "interval composite complete".

If I set the K1 drive mode to interval composite with 26 seconds interval , shutter speed = 25 seconds, and 32 shots, the camera will take 32 shots and stack them according to the setting chosen (Additive, Average, or Bright).

So, it work but there is a bug... The condition for interval stacking to work is: interval time > 30 second, and interval time > shutter time.
08-12-2016, 05:32 PM   #6
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Thank Goodness for Biz-Engineer

Glad I found your post and explanation as to reason interval composite would not work. Looked everywhere and Ricoh/Pentax customer service is less than stellar. I set the camera as you indicated with interval time 1 second greater than shutter speed and works perfectly. Tried multiple different times/speeds/frames and no problems.

Thank you for posting and explaining how to work around the "bug".
08-27-2016, 04:49 AM   #7
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QuoteOriginally posted by bernieadkins Quote
Thank you for posting
You're welcome
08-29-2016, 11:40 AM   #8
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Can bugs be reported to Ricoh?

09-04-2016, 11:47 AM   #9
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QuoteOriginally posted by leekil Quote
Can bugs be reported to Ricoh?
Yes, you can contact customer service for your region's distributor. This is a good idea in general if you are having trouble with your camera.

FWIW, the OP's difficulties on this thread do not constitute a bug or "issue". What is described is normal behavior* and is documented in the user manual, though maybe not as well as they might be.

Addendum: Adam has added a "sticky" to the K-1 sub-forum where users can report K-1 bugs/issues. Posts there should be a clear case of QC lapse or clear failure to operate to specification. One should not post just because a feature is missing or it works differently than on brand-x or another Pentax model.

https://www.pentaxforums.com/forums/190-pentax-k-1/319873-post-k-1-bugs-issue...ack-ricoh.html


Steve

* Interval shooting is not particularly straightforward, regardless of brand or method used. A certain amount of planning is required and when the camera offers multiple options things get confusing very quickly.

Last edited by stevebrot; 09-04-2016 at 12:01 PM.
09-04-2016, 11:58 AM   #10
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I suspect if you turn off long-exposure NR the time between exposures can be lowered to a few seconds. That allows for hot pixels to build up on the image though, so it has its own risks.
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