Still photo image size question. at DVinfo.net

Warren Eagleton · August 10th, 2011, 10:09 PM

Have been taking some stunning video and have noticed that one has to be quite mindfull of exposure in bright conditions. What seemed like a nice day for video turned out to be a bit bright when I checked the iris setting and found, auto was selecting F 9.6 and the picture still suffered some blown areas.The application of an ND4 filter (25% light transferance) dropped the auto F stop down to F 7.3 and the picture was much improved.
However my real reason for posting was that I am a bit mystified about the 12 megapixel still image capability. I have the camera set to 16:9 FX and that is displayed on the LCD along with the 12M symbol. The resultant JPEG still images when downloaded to the computer are only between 3.8 MB to 4.3 MB. I was expecting round 6 MB. What is the forums experience?

Dave Blackhurst · August 10th, 2011, 10:33 PM

Those file sizes sound about right after compression, which will vary depending on the scene - pretty close to the 12Mp 16x9 images my other Sony still cams shoot.

Jean Philippe Stuart · August 15th, 2011, 06:18 PM

I have noticed the same thing! So, when in the viewer you see 12M for the size of the pic you're ready to take with this camcorder, what do we need to do to actually get the same size in the end, on a computer? Thank you

Warren Eagleton · August 15th, 2011, 08:15 PM

Hi Jean, don't confuse megapixels with file size which is expressed in megabites (MB). I have a 10million pixel Nikon SLR but it produces JPG pic's round 6 MB. My point in my previous post was that if the NX70 is capable of 12 million pixel shots the file size should maybe be round 6 to 7 MB. The NX70 stills are not a patch on the NIKON SLR which has a much bigger sensor and is geared toward still photography. Hope that helps you understand, cheers.

August 10th, 2011, 10:09 PM	#1
Warren Eagleton Regular Crew Join Date: Nov 2010 Location: Auckland, New Zealand. Posts: 52	Still photo image size question. Have been taking some stunning video and have noticed that one has to be quite mindfull of exposure in bright conditions. What seemed like a nice day for video turned out to be a bit bright when I checked the iris setting and found, auto was selecting F 9.6 and the picture still suffered some blown areas.The application of an ND4 filter (25% light transferance) dropped the auto F stop down to F 7.3 and the picture was much improved. However my real reason for posting was that I am a bit mystified about the 12 megapixel still image capability. I have the camera set to 16:9 FX and that is displayed on the LCD along with the 12M symbol. The resultant JPEG still images when downloaded to the computer are only between 3.8 MB to 4.3 MB. I was expecting round 6 MB. What is the forums experience?

August 10th, 2011, 10:33 PM	#2
Dave Blackhurst Inner Circle Join Date: Feb 2007 Location: Apple Valley CA Posts: 4,874	Re: Still photo image size question. Those file sizes sound about right after compression, which will vary depending on the scene - pretty close to the 12Mp 16x9 images my other Sony still cams shoot.

August 15th, 2011, 06:18 PM	#3
Jean Philippe Stuart New Boot Join Date: May 2011 Location: Beverly Hills Posts: 6	Re: Still photo image size question. I have noticed the same thing! So, when in the viewer you see 12M for the size of the pic you're ready to take with this camcorder, what do we need to do to actually get the same size in the end, on a computer? Thank you

August 15th, 2011, 08:15 PM	#4
Warren Eagleton Regular Crew Join Date: Nov 2010 Location: Auckland, New Zealand. Posts: 52	Re: Still photo image size question. Hi Jean, don't confuse megapixels with file size which is expressed in megabites (MB). I have a 10million pixel Nikon SLR but it produces JPG pic's round 6 MB. My point in my previous post was that if the NX70 is capable of 12 million pixel shots the file size should maybe be round 6 to 7 MB. The NX70 stills are not a patch on the NIKON SLR which has a much bigger sensor and is geared toward still photography. Hope that helps you understand, cheers.