I've been lurking on Nikonians for a while now, and it's about time I joined this community. I'm the happy owner of a new D100 and discovered the other day that I had never changed the image quality setting for NEF images from compressed RAW to RAW (the long wait after 3 exposures clued me into this mistake). I was surprised that when I did change this to uncompressed, that the remaining exposure count remained the same. With an empty 512MB flash card it registers 51 exposures when I set the image quality to RAW regardless of whether compression is set or not.
I've read in earlier threads that the remaining image count is conservative, but this seems downright pessimistic! Have any of you observed this? Compressed NEFs, if they mean more exposures on my flash card would be nice, esp. when I'm not taking rapid fire pictures.
It's just showing you a worst-case scenario. Unlike JPEG files ther are cases where the compression scheme used in NEFs (Huffman coding with a lookup) won't compress at all. You'll still likely get 20-50% more on a card.
"Your actual count may vary" should be printed on the camera.
I was shooting in jpeg mode and found that if you are shooting dark scenes (I was shooting fireworks - still trying to get the hang of that) you will get quite a few more shots. Using a 256M card, set to JPG Fine, Large, my count started at 75. After a night of shooting, I noticed my D100 said I had 30+ shots left. I downloaded 86 images. Talk about confusing.
I understand there is a conservative count going here, but maybe it should read memory left instead of images. This is the Digital Age... you know?
"minimum shots remaining" might be closer to the truth. This weekend I went on a boat tour of lighthouses in the Delaware Bay. It was you basic, clear, cloudless day. Again, I started with 256M CF and a counter that read 75 to go. My trusty D100 was set to JPEG Fine Large. I just kept shooting and shooting. By the time the day was over, my counter said I had 8 shots left. But when I checked the actual image numbers, the total was 94 shat taken. So in theory, if 94 counts as 67, then I should get approx. 105 shots from a count of 75.
May be Nikon can reprogram the counter to show the percentage of memory remaining?
It could, but then you are back to the same problem in a slightly different form. With 3% of your memory remaining, how many shots can you get? Do you remember if you have 3% of the 256MB card or 3% of the 512MB card?
Design decisions like what to show for a frame counter are difficult. There are existings ideas of what the frame counter is like on film cameras so the decision is even more challenging. With film a 36 roll is 36 or 37 frames but with digital a card can hold a a huge variety of frames.
What *I* would like to see is the ability for the camera to go back and compress the NEFs it's already taken when it has some spare CPU time. A frame counter that goes up over time would be erie.