problem with 555ELD

<p>I have year and half old 555ELD (the one with motor) and I had no problems at

all, untill now:<br>

<i>"no words: light-stripes"...<br>

</i>(link from this small images will open bigger images from my site)</p>

<p><a href="http://bellay.com/truoble/problem_stripes.jpg"

target="_blank"><img src="problem_stripes.gif" alt="problem with 555eld"

height="212" width="140" border="0"></a></p>

<p>and here is detail:</p>

<p><a href="http://bellay.com/truoble/problem_detail.jpg"

target="_blank"><img src="problem_detail.gif" alt="problem with 555eld"

height="212" width="200" border="0"></a></p>

<p>Exposure time was 1/4 and 1/15 of second, camera was on tripod, fresh

bateries... Lens was distagon 50 (if that matters)<br>

Anyone have any idea what could be reason for that failure?<br>

<br>

Tnx for any help<br>

Janko</p>

It seems that the shutter is open while the film is being wound on.

Perhaps the lens leaf shutter is faulty, (try another lens) or there is a sequencing or interlock problem in the camera.

A faulty release cable might confuse the system - how are you firing the shutter?

Try different (types of) leads.

The interlock system might work via the film back.

The camera:

Closes the lens shutter

Lifts the mirror

Closes down the lens aperture,

Opens the rear shutter and

Tells the shutter to fire

Then the lens tells the camera when the exposure has finished, and the camera opens the aperture, pulls the mirror down, closes the rear shutter and winds the film on.

Try operating the camera with the filmback off, and watch the sequence.

The problem could be electrical or mechanical

I would have thought that a Hasselblad expert might have chipped in by now.

I think that there is no interlock to prevent the film advancing before the end of the exposure - and you have to keep the button pressed until the end of the exposeure, and the camera winds on when you release the button - try it - I think there is something in the manual about it.

I was unable to view the images, so I hope this information will apply to your situation. When you let go of the release button, the camera will start to advance the film. If you are using a slow shutter speed, you must hold the release button in until the exposure has been completed. Let's say you are using a 1/4 second exposure time. If you press the release button, and then let go of it immediately, the camera will advance the film while the lens shutter is still open. So the film will be moving while it is being exposed, causing streaks in the film. So make sure you wait until the exposure has been completed before letting go of the release button.

David S. Odess

Factory trained Hasselblad technician

28 South Main Street #104

Randolph, MA 02368

(781) 963-1166