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02-10-2013, 12:58 AM   #1
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Super long exposures with q

Hello,

I noticed that the minimum shutter speed for the Q was 32 seconds. Is there a way around this? I am interested in 20+ minute exposures and just received my q and found out it doesn't appear possible. Also in bulb mode you cannot use a remote to open then close the shutter.


Any help?


Thank you,
Jack

02-10-2013, 05:18 AM   #2
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You can use interval shooting and combine the images. This is inconvenient, but I've done it a bit with adapted lenses (where the maximum time per shot is 2 seconds). Of course, this only works if gaps in the exposure are no problem.

If you want JPEG you can even get the camera to combine them (multiple exposure mode), but I want RAW.

There are doubt a lot of programs you can use for this, but the ones I found all seem to want JPEGs, which means I get to develop them first and then combine them. I wanted to combine the RAWs and then develop them as if it really had been a longer exposure, so I wrote my own. dngcombine isn't particularly general, but it does work on the files produced by the Q. If you are not a command line person it might not be for you though.

If you really want it, you could disassemble your Q and put a locking switch on the shutter release contacts. (Assuming bulb will go that long, I've never tried it.)
02-10-2013, 05:29 AM   #3
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This is where the K-01 does well. Multiple exposures with RAW output and Bulb mode with the ability to turn off NR at will. Hour long exposures are no problem and multiple exposures a breeze with up to 9 images to stack internally at any exposure, including Bulb. The K-01 is the most cost effective Pentax camera for long exposure work.
02-10-2013, 06:58 AM   #4
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QuoteOriginally posted by nightfly Quote
The K-01 is the most cost effective Pentax camera for long exposure work.
We should have heard that - from Pentax - a year ago.

02-10-2013, 07:25 AM   #5
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QuoteOriginally posted by monochrome Quote
We should have heard that - from Pentax - a year ago.
Agreed. Pentax needs to strut their stuff. They should not depend on us to waive the flag.
02-10-2013, 11:05 AM   #6
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QuoteOriginally posted by nightfly Quote
This is where the K-01 does well. Multiple exposures with RAW output and Bulb mode with the ability to turn off NR at will. Hour long exposures are no problem and multiple exposures a breeze with up to 9 images to stack internally at any exposure, including Bulb. The K-01 is the most cost effective Pentax camera for long exposure work.
QuoteOriginally posted by monochrome Quote
We should have heard that - from Pentax - a year ago.
QuoteOriginally posted by nightfly Quote
Agreed. Pentax needs to strut their stuff. They should not depend on us to waive the flag.
QuoteQuote:
The K-01 will be available in yellow, black and white in March 2012 for $749.95USD (body only) and $899.95USD (lens kit including new DA 40mm XS) in Marc Newson designed packaging and with the Marc Newson designed strap. The smc PENTAX-DA 40mm F2.8 XS unifocal interchangeable standard lens will ship at the same time for $249.95 USD.
With the price decrease it has become an outstanding bargain. The introductory price was a bit too much....

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