K1 Pixel-Shift Confusion
Posted 05/09/2016 - 22:23 - Helpful Comment
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If you start off by shooting JPEG the camera will sort it out for you, resulting in a file the normal size but slightly crisper.
I used the Pentax software to process DNG versions, but found the advantage over the JPEG route was very, very slight. What it did mean was handling enormous files, so make sure your computer is up to the task.
The final image will be the same number of pixels, the advantage being more specific and accurate colour information at each pixel.
I used the Pentax software to process DNG versions, but found the advantage over the JPEG route was very, very slight. What it did mean was handling enormous files, so make sure your computer is up to the task.
The final image will be the same number of pixels, the advantage being more specific and accurate colour information at each pixel.
Best regards, John
Posted 06/09/2016 - 19:10
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Always, always, always shoot RAW. Never ever allow someone else decide how your finished photos should look, that is what you do if you shoot jpeg and you toss away 95% of the detail captured by your sensor.
Pixel shift takes four images and basically stacks them on top of each other that way every pixel absorbs every colour hence the huge files.
Pixel shift takes four images and basically stacks them on top of each other that way every pixel absorbs every colour hence the huge files.
Flickr
"Life is what happens to you while you're busy making other plans" (John Lennon)
"Life is what happens to you while you're busy making other plans" (John Lennon)
Posted 06/09/2016 - 20:26
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Shoot raw to one memory card and jpeg to another, then you can choose to deal with either and have a backup in case one card gets corrupted. K-1 raw files contain an exceptional dynamic range which cannot compare to camera processed jpegs.
For pixel shift raw processing the supplied program is best, otherwise Lightroom, Photoshop. Elements etc are fine. The trouble with the supplied program is that it is really s-l-o-w !
For pixel shift raw processing the supplied program is best, otherwise Lightroom, Photoshop. Elements etc are fine. The trouble with the supplied program is that it is really s-l-o-w !
John K
Posted 06/09/2016 - 20:36
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JAK wrote:
Shoot raw to one memory card and jpeg to another, then you can choose to deal with either and have a backup in case one card gets corrupted.
Shoot raw to one memory card and jpeg to another, then you can choose to deal with either and have a backup in case one card gets corrupted.
This is exactly what I am doing. I normally process the RAWs but the second card is for when time is limited and/or backup. Put a 64GB in the second slot for the JPEGs and it takes forever to fill up. I also doesn't need to be the fastest card.
Pentax K-1| D-FA 24-70mm | FA 43mm F1.9 Ltd | FA* 85mm F1.4 | D-FA 100mm F2.8 Macro WR | DA* 200mm F2.8 | Pentax AF 540FGZ
Posted 06/09/2016 - 20:50
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Thanks John and everyone else for the replies – I think I understand what is going on now.
Experimented with a few shots in the garden, but the wind spoilt several shots. I will have to see how well the motion correction works next.
Dave.
Experimented with a few shots in the garden, but the wind spoilt several shots. I will have to see how well the motion correction works next.
Dave.
Posted 08/09/2016 - 10:21 - Helpful Comment
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Dave_Evanson wrote:
Is the actual number of image pixels unchanged when using Pixel Shift? ?
Is the actual number of image pixels unchanged when using Pixel Shift? ?
yes.
The term resolution used to mean how clear something was, but with digital cameras, resolution came to mean the pixel size of the image. Pentax refers to Pixelshift as a high resolution mode (in the original sense of the word) but it's the same resolution as a non pixel shift image but with better clarity/colour information.
Olympus for example also has sensor shift capabilities, and their pixel shift mode results in a larger pixel size image.
It's best for static subjects, although the recent software releases can work with some movement. Essentially where movement is detected, the software simply uses just the one image in that area, where as static areas receive the full information available from the multiple captures.
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227 posts
20 years
UK
Is the actual number of image pixels unchanged when using Pixel Shift? Although the DNG files are around 170MB as opposed to 40~50MB for normal DNGs both result in the same image size 7360x4912 in Lightroom (Lightroom CC Release 2015.6.1 Camera Raw 9.6)
Is this correct or do I need to install the Pentax software to process the DNG files? Or change the RAW format?