Question about Canon EOS-1Ds Digital Camera

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Lighter Band On top of the picture

I noticed that when shooting outdoors specifically, there is a lighter band going across the top of the frame of my 1Ds (mark I). This occurs especially under bright sun. With an overcast sky, it's either unnoticeable or not there. In shade or indoors, it's non- existant. Occurs with fill flash and without. Occurs at different ISO's as well as different appertures. It stands out particularly when the frame is underexposed and it almost seems like the lighter band is properly exposed versus the rest of the frame. Anyone familiar with this or can give me a clue??

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Re: Lighter Band On top of the picture

It's a shutter problem--it's not the amount of light per se that causes it, it's the shutter speed. This issue often only shows up at a few shutter speeds. My 1dsII does it around 1/125, although not nearly as badly. Apparently the shutter is bouncing or hanging up at the end of its travel. Sorry, it's either send it to Canon or learn to live with it.

Posted on Sep 14, 2005

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I am using a Nikon D200. When using flash I can't raise the shutter speed any higher than 1/250. It seems to be locked there and I don't know how unlock it. Please help.


That's entirely correct. 1/250th is the fastest shutter speed you can use when using flash. Many other cameras can still only use 1/60th or 1/125. It's all to do with the two curtain nature of an SLR shutter: when you release the shutter, one curtain withdraws across the frame to expose and then a second one follows behind to shut off the light source. For exposures of 1/250 or slower on your camera, the second curtain does not start to travel across until the first one has fully opened, so you have a fully open exposure frame allowing the flash to reach every part of the sensor. At faster speeds, the second curtain sets off before the first one has finished and at the highest speeds it's so close behind the first that only a narrow **** is open to the incoming light as the shutter curtains pass across the sensor. If you fire the flash at these speeds the shadow of the first or second (or both) curtains will appear on the sensor and the picture will look like a narrow horizontal band, or if using fill in flash, it will look like a bright band across the picture.

It's immaterial though as the normal exposure rules don't apply with flash: the flash duration is typically anywhere from 1/4000th to 1/50000th and in that exposure time it outputs sufficient light onto the subject to enable a photo to be captured. As the flash is the dominant light source, the ambient light captured when the shutter is open for 1/250th is insignificant unless you're making a daylight exposure and using the flash for fill in purposes.

There are some specialist SLR and flash combos which will allow the full range of shutter speeds, but they do so by firing the flash multiple times very rapidly to ensure that there is flash light present effectively continuously as the narrow exposure **** passes across the sensor.

Compact cameras have shutters which work differently and which fully expose the sensor at all shutter speeds, so in that respect they can have a far more flexible flash exposure system. Unfortunately, they ruin it by having pathetically weak built-in flashes which are only good for very short distances.

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1 Answer

Purple Screen on my Canon PowerShot A85 (Canada)


If the purple band does not appear in pictures when you download them on computer, then the problem is a faulty LCD screen or a bad ribbon cable.

If the purple band appears in pictures even when you watch them on a computer, then the problem is a faulty CCD sensor.

In both situations the repair requires complete disassembling and must be done by a technician.

If it is CCD , then Canon may cover the out of warranty repair, call them back and ask again stating that is CCD problem.

You can also get an independent quote on repair here: Repair.

Regards

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1 Answer

Sony DSC-W30 white's out/streaks pictures


BAD CCD !

Just call Sony if u dont have warranty in that case they will also do it free of charge i am pretty sure this is the problem thousands are facing in different brands for ur reference i am giving u a link as sony has issued service advisories like this for this type of problems dont worry if u are not on list insist they will still do it free of charge !!

http://esupport.sony.com/US/perl/news-item.pl?mdl=DSCT1&news_id=161

kindly rate me Fixya fo rhelp !!

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1 Answer

Black area in photograph


Unless you are using high-end Nikon Speedlights with camera and flash set for Auto FP High-Speed Sync, your top flash sync shutter speed on the D80 is 1/200 second. The black band you are seeing at faster shutter speeds is because the second curtain of the shutter begins to close before the first curtain reaches the fully-open position (which is when the flash fires). The higher the shutter speed, the shorter the gap between first and second curtains. To get full exposure with flash, there must be an instant when the shutter is fully open -- first curtain completed travel, second curtain not started yet.

"As the speed increases the final image should get lighter" applies to ISO speed. Higher shutter speeds mean less light reaching the sensor, but that's not the cause of the black bands.

Mar 22, 2009 | Nikon D80 Digital Camera with 18-135mm...

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Wude light "band" or stripe at the top of each image


yoav_etiel,
Try to reset the camera first, second don't operate the camera (on) without the lens attached, the shutter can get damaged. If you purchaed this camrea recently (new) it can be serviced, within a year it can be sent to Nikon for evaluation. If it is used or past the maufacturers warranty find a reputable shop to look at it.
randy320sgi

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2 Answers

CASIO EXILIM digital camera photo resolution


The Digimax A7 Doesn't work outdoors, because on top of the camera, try taking a picture, but hold your hand on the top of your camera (Cover it) it's light sensitive. On top their is a built in sensor, the Darker it is the darker the picture is, the lighter, the lighter. If you cover it, (Usually on top) It should work fine outdoor, just don' t cover it indoor. Hope this helped. -CA

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Outdoor pictures are very light, no color with horizontal bands. The indoor pictures are spotty, some ok, others blurry, some with the banding but there is color


.try xperimenting with diff pc settings wen shooting outdoors...also chk the white balance settings/////focus the camera on the object u want to appear white and "ok" it....chk the iso settings for light sensitivity....if all dis dusnt wrk ...theres a prob wuid ur ccd sensor..and can be repaired only by the service centre.

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1 Answer

Canon SD 700 IS Movie Sound Issue


This is because of low light and low frame rates in the camera. It records the sound on time but the picture delays. In the camera's video menu, choose a higher frame rate to help this a little. Honestly though, If you want to shoot better video get a video camera.

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Canon EOS 10D Shutter getting in the way on fast shutter speeds


Only Canon Technical Support will came to your rescue here

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