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View Full Version : Different exposure for the 3 photos in RAW multiframe mode



queviko
08-28-2005, 04:46 AM
Hi All,

I bought in Singapore a

- D70s kit 18-70mm
- 50mm 1.4 lens
- 70-300mm lens

Last week during a museum visit, with no flash allowed, I've used my 50mm 1.4 - After a while I felt that my camera had some difficulty to focus.

I didn't worry as the light conditions were difficult. I was mainly using my lens in 1.4 aperture.

Suddenly the "Err" message appeared. I remove the lens, and put it back... nothing... no way to get it work anymore.

I removed the lens again and saw that the mirror was locked up. I tried another lens, then the mirror (I eared) went back to good position. But taking pictures again, the first 5 were almost completely dark.

After 10-15 pictures, the exposure looks good as it should.

But, since then (I'm not even sure this is linked anyway), when I shoot in JPG, everything looks fine (seems to be, maybe because the time between pictures are quite slow compare to RAW)

The problem comes when I shoot in RAW !

The buffer allow 3 shoots in 1 second. The first seems OK, the second is dark, and the third is darker than the first but better than the second.

I don't remember how it was before, but I'm guessing the 3 pictures having the same setup (ISO, speed & aperture, etc) should be the same...

I've tried everything I've seen on the web, remove the battery for 24hours, clean lenses contacts, reset buttons, making sure the manual aperture setup of my lenses are in max f/aperture number, etc... nothing is changing. RAW seems an issue now. And this, what ever the lens I'm using...

Even now, I'm not sure that JPG are really correct. Maybe the speed of the shutter is the issue... that is maybe why only the first is good. But is it really? Does the camera really shoot at 1/60 or maybe 1/58 as it seems having speed issues...

I don't know what I can do... I'm really sad as I love my D70s... I'm so depressed, I just bought it since 2 months, and already having issues !!!!!

My second problem is that I bought it when I was working in Singapore for my company and went back in Europe. As the support/warranty is not working here, I can't imagine to survive without my camera for more than 3 weeks ! :-(, and what would be the cost?????

Please help, what can I do? Did you eared about such issue before? Is there a way to fix it without using repair services? If not... what would be the best for me?

Please find a copy of series of 3 pictures in RAW mode at this address in order to illustrate my issue (pictures were not modified appart from their size to 1024x681)

http://pg.photos.yahoo.com/ph/queviko/album?.dir=/94a0&.src=ph&.tok=phgmEiDBNgZlzkg

Thanks all in advance for your great help,

Queviko

ReF
08-28-2005, 06:26 AM
i don't own a nikon and i don't know how their stuff works, but it sounds like the camera is stuck in bracketing mode for RAW only. hey you other nikon owners, is this possible? see if this can't be fixed with some tinkering of the settings. if it is a bigger problem, call up Nikon customer support and explain to them your working/moving situation, and that you've only had the camera for 2 months. it's possible that they might make an exception and accept the repairs. doesn't cost a thing to try right?

D70FAN
08-28-2005, 07:13 AM
My guess on the 50mm f1.4 is that you accidentally unlocked the lens from the f22 setting and the aperture ring is on a setting other than f22 (marked in orange or red just for this purpose). Make sure the lens is at f22 (on the aperture ring) and locked.

If you are shooting indoors without a flash in auto mode, with a 70-300 then don't. The D70 has a 1/3 stop underexposure when using Nikkor lenses (I don't see this with my Sigma...???) and will tend to underexpose normally. I agree that it sounds like you are in bracketing mode, and shooting continuous, so check that. Also it looks like you might have the ISO set to 1600 in auto mode. This is a no-no as the auto ISO has no where to go when you do that. Keep it at 200 in auto mode.

Other than being underexposed by a full stop your sequence looks ok.

queviko
09-03-2005, 09:13 AM
Dear all,

Thanks a lot for all your feedbacks.

You really think the sequences are OK on the link provided????

Do you feel that pictures DSC4637.JPG & DSC4639.jpg looks the same?

Second one if to my opinion a lot darker... And by having the AE Lock used, it doesn't seem normal to me. By using AE Lock button, normaly the esposure should be exactly the same no?

ISO, all the same in all pictures... 200 ISO.
Lenses all set correctly to F/22 lock.
No bracketing used...

Do you still think is it normal?

When you guys take 3 quick pictures in 1 sec and in RAW mode you have as well different exposure using AE Lock button and same settings between all pictures?

Thanks again for your replies...

Jeff Keller
09-03-2005, 09:54 AM
Please start one thread in one location only!! Duplicates like this one will be locked. Further discussion on this topic should go here (http://www.dcresource.com/forums/showthread.php?t=11668).