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[wgpemberton]

I have reviewed all the threads I can find on memory cards and buffering, but can't find this issue mentioned directly. It concerns the playback screen refusing to turn on after a few dozen shots taken, and not taken in any speed shooting mode.

I am using a housed D70s underwater, image size set to RAW + jpeg, manual settings, typically 1/125 at F5.6, and using iTTL on underwater strobes. I do not shoot in any rapid mode. I shoot, look at playback screen, adjust, shoot again. I'm saving to a SanDisk Ultra II and have both 1gig and 2gig cards. I do not have any noise correction turned on.

After a few dozen shots, the playback screen will NOT come on for several seconds, and eventually the delays reach nearly a minute. During that time the menu will not come on either. I.e. the back screen is dead. I can still take photos, and when I wait a few minutes, they will show up with the others that I was unable to see. Everything seems to get captured, but nothing played back until an unreasonable wait.

I have experimented enough to know that the problem exists for both my SanDisk cards, and did not seem to be related to battery charge, nor how full either card may be at the time. It may to be some sort of buffer transfer that when I fill the buffer, everything slows down a lot, including the automatic feature of the playback screen coming up. That's just a guess, since I wasn't scientific enough to record how many photos occurred before it started happening. It's about 2 dozen, however.

Does anyone know what causes this delay to show up? Is it a known camera issue that I've just not caught up to?

 

[Chuck Steenburgh]

Odd. Is it ONLY underwater that this happens? If so, what's the water temperature?

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[wgpemberton]

I've not had a chance to test it above water, but I expect it to happen there too. I do not beieve it it temperature related. I plan to test it tomorrow after I've dumped the last photos.

Water temperature was 79F to 80F, about 26C.

Wade

 

[B Roman]

I would test it in normal shooting conditions, like in a house or building. If it's still happening then something is definitely wrong with your camera, make sure the battery isn't dying or in need of charging (just a thought).

If it doesn't happen out of the water, it could be that there is some condensation forming inside the camera when you take it in the water, make sure you have silca packs in the underwater housing to absorb any moisture.

I remember that I was shooting the other day and everything was fine until the camera started to stop showing the playback of the last photo I took. I could still take pictures and look at the shots in the LCD by pressing the playback button, but the pictures weren't showing up after I took a picture. Turned out the battery was dying and needed to be recharged.

 

[jfriend00]

It sure sound like it's taking a long time to 'process" an image after you've taken it. That processing could either by internal in the camera or could e a problem transferring it to your memory card. If would first try to run some extensive tests on your memory card. Reformat it. Then, in a card reader, copy a bunch of files to the card and see if they seem to go speedy. Check the card manufacturer's web site for any diagnostic software (most have some).
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John
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