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07-10-2007, 11:45 PM   #1
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Problems with K100D and night photos

I bought not for long a K100D having the 18-55 mm lens. I was really impressed by the quality of the photos. Until i tried to take some pictures in the night. Even if i used a tripod, the photos were blurred. Most of them unutilisables, even if i shooted in RAW. I do not know where this problem came from: it is a problem of optical system (lens, autofocus) or an electronic problem of K100D?

07-11-2007, 03:46 AM   #2
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Can you post an example, with the EXIF data?
07-11-2007, 03:58 AM   #3
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For night photos using tripod make sure that:
1) Noise reduction is ON
2) Shake reduction is OFF
3) Use 2 sec timer.
07-11-2007, 04:41 AM   #4
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Yeah examples will help.

Do you have the same blur with a brighter environment? What was the shutter set to and what is the aperture size?

07-11-2007, 04:49 AM   #5
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This was taken with my K100d last year. a tripod was use:

Focal: 18mm
fstop: 16
ISO - 800
Shutter: 6sec
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07-11-2007, 05:09 AM   #7
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Thanks all for the suggestions! I see a great feedback from Pentax community! The person that indicates me that forum was right.
@Edvinas: points 1 & 3 accomplished. Concerning 2, tested w or w/o SR and the same. i'll make more tests and i will post the results
07-11-2007, 05:24 AM   #8
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If the camera is steady, there shouldn't be any issues.

Here's one at 30 seconds:

Model : PENTAX K100D
ExposureTime : 30.00Sec
FNumber : F10.0
ExposureProgram : Manual
ISOSpeedRatings : 200
ExposureBiasValue : EV0.0
MeteringMode : Spot
FocalLength : 28.00(mm)






07-11-2007, 05:37 AM   #9
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meh.
07-11-2007, 05:57 AM   #10
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QuoteOriginally posted by Kingsofronin Quote


meh.
I'll get a little off topic but what the hell is the point of posting "MEH"? It's a serious question from someone that is trying to learn. That's one of the purposes of this forum. If you're apathetic, don't waste the bandwidth.

As for the real question at hand, I would suggest:
1) use a tripod
2) cable release or 2 second mirror lockup timer
3) SR turned off and the results should be just fine. Once you've tried these post a pic or 2. I doubt there would still be an issue.
07-11-2007, 06:19 AM   #11
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In addition to the above suggested steps, I also move the AF/MF switch to the manual focus position.
07-11-2007, 07:08 AM   #12
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Thanks all for the suggestions. I'll follow as soon as possible all the advice u done me. And i hope the results will be better. Have a nice day all of you!
07-11-2007, 07:59 AM   #13
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QuoteOriginally posted by Asimilatrixu Quote
I bought not for long a K100D having the 18-55 mm lens. I was really impressed by the quality of the photos. Until i tried to take some pictures in the night. Even if i used a tripod, the photos were blurred. Most of them unutilisables, even if i shooted in RAW. I do not know where this problem came from: it is a problem of optical system (lens, autofocus) or an electronic problem of K100D?
Turn off the 11-point AF and use central point only and do AF on contrasty object only. Worst come to the worst, use MF and do focus bracketing or focusing by eyes if you still can in the dark. Well, the 00 mark of modern DSLRs and lenses are not as accurate as in the old MF days, so the best thing is that the AF does its job for night scene, however, it doesn't, especially when 11-point AF is used.

Good luck. When you have got the focus right, I'm sure you will like your photos again.
07-11-2007, 06:44 PM   #14
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QuoteOriginally posted by Asimilatrixu Quote
Thanks all for the suggestions! I see a great feedback from Pentax community! The person that indicates me that forum was right.
@Edvinas: points 1 & 3 accomplished. Concerning 2, tested w or w/o SR and the same. i'll make more tests and i will post the results
When you use any of the self-timer modes, the SR is automatically turned off. Look at the manual in the SR section for other times SR is automatically turned off.
07-11-2007, 08:33 PM   #15
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All the info should be on my pic's except the F-stop on those where I used a completely manual lens (it's f2 then)






and although not pitch black yet this is a very low light 18 photo panoramic

I had to brighten it up to see the boats.

I can show you plenty more as well if you want.

My secret is use a tripod, ISO 200 and turn off SR.
I always use the lowest F-stop, and play around with the shutter speed until I find the 1 that has the effect that I want
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