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SX40HS ..Shoot in RAW only ?

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SX40HS ..Shoot in RAW only ?
« on: 17 / April / 2012, 22:29:08 »
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Is there a way to ONLY shoot Raw files and turning off the JPG ?

Re: SX40HS ..Shoot in RAW only ?
« Reply #1 on: 17 / April / 2012, 22:53:46 »
Is there a way to ONLY shoot Raw files and turning off the JPG ?
No.  Or at least,  nobody has puzzled that out yet.
Ported :   A1200    SD940   G10    Powershot N    G16

Re: SX40HS ..Shoot in RAW only ?
« Reply #2 on: 18 / April / 2012, 00:54:24 »
it shure would be Nice to be able to use one or the other
and the camera would be alot faster on shooting to.

Re: SX40HS ..Shoot in RAW only ?
« Reply #3 on: 18 / April / 2012, 01:17:00 »
it shure would be Nice to be able to use one or the other
well - you can always use just JPG only so you have 1/2 of your request already. 
Quote
and the camera would be alot faster on shooting to.
Maybe.   On my cameras saving JPG files takes less than 1/10 second - the RAW can take several seconds.  Not saving the JPG would not buy much.    On the other hand, a faster SD card makes a big difference.
Ported :   A1200    SD940   G10    Powershot N    G16


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Offline fe50

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Re: SX40HS ..Shoot in RAW only ?
« Reply #4 on: 18 / April / 2012, 01:22:54 »
it shure would be Nice to be able to use one or the other
and the camera would be alot faster on shooting to.
No, not really...
The JPEG's are also needed to hold the complete set of meta data (EXIF) and to show your images in playback mode - no JPEG, no preview...
You can set the image resolution & quality to the smallest/lowest settings to save storage space on your card.

Re: SX40HS ..Shoot in RAW only ?
« Reply #5 on: 18 / April / 2012, 10:31:57 »
I dont use Review. 8)

and I SHURE dont want low resolution and Low quality Images .. :blink:

and I use Class 10 16Gb.

my next card is going to be a 32GB SDXC.

to bad one cant save as a PNG as you would beable to keep the 32bit Vs the JPG at 24bit.
« Last Edit: 18 / April / 2012, 11:08:54 by radioman193 »

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Offline zeno

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Re: SX40HS ..Shoot in RAW only ?
« Reply #6 on: 18 / April / 2012, 13:14:02 »
Setting low res only affects the jpg's - not the RAW (which is always a full dump of what's on the sensor). And without the EXIF info you won't know anything about the camera settings, which you might need when processing the RAW images in Lightroom or whatever.
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Re: SX40HS ..Shoot in RAW only ?
« Reply #7 on: 18 / April / 2012, 15:14:35 »
to bad one cant save as a PNG as you would beable to keep the 32bit Vs the JPG at 24bit.
Please read something about image formats.
1. Setting resolution and image quality does NOT affect RAWs, only JPEG.
So you can't turn JPEGs off completely when shooting RAW, but you can setup your camera to store very small JPEGs.
2. 32bit PNG vs 24bit JPG: and from where those additional 8 bits should came?
Additional 8 bits are used for alpha channel (transparency), which is not present in real world images as you probably know :)
The only benefit from PNG is that it uses lossless compression, while JPEG is lossy.
But you can shoot RAW and convert to any format you want, including PNG.


Re: SX40HS ..Shoot in RAW only ?
« Reply #8 on: 18 / April / 2012, 17:18:41 »
No, not really...
The JPEG's are also needed to hold the complete set of meta data (EXIF) and to show your images in playback mode - no JPEG, no preview...
But if you configure CHDK to save your RAW data in DNG format then you don't need the EXIF data from the JPG.

Ported :   A1200    SD940   G10    Powershot N    G16

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Offline srsa_4c

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Re: SX40HS ..Shoot in RAW only ?
« Reply #9 on: 18 / April / 2012, 17:56:55 »
No, not really...
The JPEG's are also needed to hold the complete set of meta data (EXIF) and to show your images in playback mode - no JPEG, no preview...
But if you configure CHDK to save your RAW data in DNG format then you don't need the EXIF data from the JPG.
The Exif written into the DNGs is by no means complete. The Canon Exif is created later (not available at the time CHDK creates the DNG), and it can contain some data that is more accurate. Here's an example: http://chdk.setepontos.com/index.php?topic=2361.msg73886#msg73886

 

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