Re: Corelating in Camera Pixel Count (RAW format) and file size?

[Pablo Coronel <pablo.coronel.70@xxxxxxxxx>]

My understanding is that RAW files are a snapshot of what the sensor recorded.... no manipulation
http://www.luminous-landscape.com/tutorials/understanding-series/u-raw-files.shtml

could it be that MP count does not work on RAW?

2010/5/11 Kostas Papakotas <clenchedteethphotography@xxxxxxxx>

hi all!

 

this I noticed soem time ago in my Pentax K10D.....

 

took a scene in 10MB and 6MB.....pxel count was

 

10Mp - Raw - 12359 KB

06Mp - Raw - 11479 KB

10Mp - JPG -  3069 KB

06Mp - JPG -  1707 KB

 

I have this question: 10/6*1707=2845 which is cloase what one would expect on JPg pixel count....

 

But why such a small difference between the RAW files? (sorry i do not recal what a 2Mp size would be). Any chance the K10D sensor is a 6Mp one and teh 10Mp files are extrapolated? Or it is just pure sensor data and final picture size is calculated upon conversion to TIFF or JPEG?

 

thanks, kostas

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