memory card question

[ShiWarrior]

I have an SLR and a compact camera

I have a 16Gb Class 10 SDHC sandisk memory card

if I put it into my Nikon D7000 it says 445 pictures I can take

if I then put it into my Sony RX100 compact camera which is 20 mega pixels, I can take 775 pictures

why can I take MORE photos with camera that's got a higher pixel count ?

both camera on their highest RAW setting

 

[Vertigo]

What ISO settings? The higher the ISO the larger the files get and the fewer you can store. The reason is that higher ISO settings produce more noise which reduces the effectiveness of the compression algorithms.

 

[ShiWarrior]

What ISO settings? The higher the ISO the larger the files get and the fewer you can store. The reason is that higher ISO settings produce more noise which reduces the effectiveness of the compression algorithms.

ooo I did not know that
thanks

I'll double check the setting

 

[ShiWarrior]

checked both camera, both were set to auto, so I tried lowest ISO and the highest, no change to how many I can take

 

[Vertigo]

Hmm, ok scratch that theory then

 

[Kei]

Nikon seem to be quite conservative with the estimates on how many images will fit on a card. My 64GB card for my D810 states something like 850 images and I actually got over 1500 on it whilst on holiday.

 

[rpstewart]

why can I take MORE photos with camera that's got a higher pixel count ?

both camera on their highest RAW setting

From what I can get from a quick google it looks like the Sony uses a compressed RAW format which will let you get more on the card.

 

[vanandjuanunited]

Is the d7000 definitely raw and not raw and jpeg

 

[ShiWarrior]

From what I can get from a quick google it looks like the Sony uses a compressed RAW format which will let you get more on the card.

thanks for the info

Is the d7000 definitely raw and not raw and jpeg

just RAW, I did check that in case