White area across bottom of photo?
Jun 22, 2022 11:16:56 #
mvetrano2 wrote:
How would I correct the problem if it were a sensor issue?
At this point, I suggest that you refer the diagnosis to the qualified and authorized repr service for yo camera.I don't think that sensor clean wour remedy the problem. If it was simply a dirty sensor, the interference would not be as localized to reside in the format.
As I mentioned before if there was a lagging shutter blad, a faulty lens shade of filter causing vignetting or a foreign object in the body, the interference would be black. In this case, they are extremely overexposed.
I oud als suggest that before send the came in for repair, you shod check all the controls and see if anything is out of normal adjustment or position. Try to fire the camera with the lens off and see if the shutter and mirror are functioning normally. Check the mirror lock up. Make sure the les in proper seats and locked in l place. If everything is apparently working, If the problem is either in the sensor or somewhere else in the camera's internal circuitry or mechanical aspects. Also make certain the card is properly seated and in good condition.
An afterthought- Does the issue show up in the viewfinder or just on the image after the exposure?
Jun 22, 2022 11:39:47 #
Longshadow wrote:
I doubt the mirror, but a cattywampus shutter could.
LOL!
Jun 22, 2022 11:43:53 #
E.L.. Shapiro wrote:
As I mentioned before if there was a lagging shutter blade, a faulty lens shade of filter causing vignetting or a foreign object in the body, the interference would be black. In this case, they are extremely overexposed.
As I mentioned before if there was a lagging shutter blade, a faulty lens shade of filter causing vignetting or a foreign object in the body, the interference would be black. In this case, they are extremely overexposed.
If the shutter blade was hanging up, causing it to close later than it should, it would over-expose that area making it light or white.
Jun 22, 2022 11:44:37 #
richardsaccount wrote:
Maybe one of the shutter blades is hanging up?. The bottom one?
Just a guess. Good luck.
Just a guess. Good luck.
Yes shutter blades, but the top, not the bottom (Basic Photo 101).
Its already stated that video has no problem. Video uses no shutter. If you need a dedicated video camera, that rescues the 70D from the dumpster.
As to "no problem" with fill flash, thaz not really true. Outdoors daylight fill flash at 1/250 will have the problem.
Jun 22, 2022 11:51:49 #
GoofyNewfie wrote:
If the shutter blade was hanging up, causing it to close later than it should, it would over-expose that area making it light or white.
Yes, that makes sense. If it is stuck in a closed position the band wor be black and if t it remained open beyond the set speed it would be white or overexposed. In either event, it is not, in my opinion, a DYI repair and needs to be professionally serviced.
It is not a straight line- it could be thathte the camera was somehow impacted and that the faulty blade is offset and jammed.
Jun 22, 2022 12:40:15 #
E.L.. Shapiro wrote:
Yes, that makes sense. If it is stuck in a closed position the band wor be black and if t it remained open beyond the set speed it would be white or overexposed. In either event, it is not, in my opinion, a DYI repair and needs to be professionally serviced.
It is not a straight line- it could be thathte the camera was somehow impacted and that the faulty blade is offset and jammed.
It is not a straight line- it could be thathte the camera was somehow impacted and that the faulty blade is offset and jammed.
A bit off topic, but a story to share.
Have a friend who worked at a camera store a long time ago (film era).
A customer who recently purchased a camera from him came back with a problem.
All of his photos were way, way overexposed, unusable.
My friend examined the camera- seemed to be firing ok.
He opened the back and saw that the shutter curtain was.... missing! (horizontally-moving rubberized cloth shutter).
The customer noticed the plastic protective cover over film plane with dashed lines over the shutter .
He had used the dashed line as a template and very neatly cut the shutter out with an Xacto knife, thinking it needed to be removed to take pictures.
Jun 22, 2022 13:09:18 #
amfoto1
Loc: San Jose, Calif. USA
That's almost certainly a sluggish shutter.
A shutter that fails to open fully causes a black area on the image.
A shutter that opens properly but is slow to complete the cycle or hangs up part way through the cycle causes bright over exposure like we're seeing here.
If you send to Canon they will tell you the shutter will need to be replaced. And, if they have the parts, Canon will charge a pretty penny for that work. "Factory" repair services ALWAYS replace parts, rather than "fix" them. That means major disassembly, plus availability of the part(s) required. Since a 70D is now between 6 and 9 years old, replacement parts may be a problem.
However, it might be possible for an independent repair shop to fix it at lower cost (such as Rick at Discount Camera Repair https://www.discountcamerarepair.com/contact-us.html). For example, it could be the shutter just needs lubrication or there's something in the track causing it to hang up... or perhaps a loose spring, as someone else suggested. It's certainly worth a phone call or email.
A shutter that fails to open fully causes a black area on the image.
A shutter that opens properly but is slow to complete the cycle or hangs up part way through the cycle causes bright over exposure like we're seeing here.
If you send to Canon they will tell you the shutter will need to be replaced. And, if they have the parts, Canon will charge a pretty penny for that work. "Factory" repair services ALWAYS replace parts, rather than "fix" them. That means major disassembly, plus availability of the part(s) required. Since a 70D is now between 6 and 9 years old, replacement parts may be a problem.
However, it might be possible for an independent repair shop to fix it at lower cost (such as Rick at Discount Camera Repair https://www.discountcamerarepair.com/contact-us.html). For example, it could be the shutter just needs lubrication or there's something in the track causing it to hang up... or perhaps a loose spring, as someone else suggested. It's certainly worth a phone call or email.
Jun 22, 2022 13:10:04 #
r1ch
Loc: Colorado
mvetrano2 wrote:
Aspect ratio of 16x9 still has white streak. Fill in flash or just flash on seems to lessen the effect, but it is still there.
Looks like redfarmer had the right answer he had it happened to him before, a Spring on the shutter hopefully doesn't cost too much to fix
Jun 22, 2022 13:25:28 #
Try long exposure like 1 sec or so. If it's the shutter it will go away at very slow speed.
Jun 22, 2022 16:11:33 #
BebuLamar wrote:
Try long exposure like 1 sec or so. If it's the shutter it will go away at very slow speed.
Not there at 1 second, or 5, starts to come in at 4, partially there at 8, completely visible at 16.
Jun 22, 2022 16:16:57 #
GoofyNewfie wrote:
Yep. Great guess. br The trailing shutter blade is... (show quote)
I have been selling most of my GAS gear on UHH, and sold a few items already. I think, after suggestions from CHG CANON, requests from my wife, and the issues with my 70D, I may want to purchase a new R6 or R5. What could I possibly get for a used 70D with problems, and a used, but in great condition, a Canon 6D Mark II?
Jun 22, 2022 16:59:48 #
r1ch wrote:
The reason to change aspect ratio to say 16x9 it w... (show quote)
Tried live mode, same white streak.
Jun 22, 2022 17:25:52 #
larryepage wrote:
I agree with Ed that this is not likely a shutter ... (show quote)
Took the battery out for 1/2 hour, put it back in and cleared all camera settings. Issue is still happening, urg!
Jun 22, 2022 17:28:48 #
mvetrano2 wrote:
Took the battery out for 1/2 hour, put it back in and cleared all camera settings. Issue is still happening, urg!
That’s because it’s your shutter blades.
DO NOT SHOOT WITH IT any more.
Jun 22, 2022 17:58:49 #
GoofyNewfie wrote:
That’s because it’s your shutter blades.
DO NOT SHOOT WITH IT any more.
DO NOT SHOOT WITH IT any more.
Ok, but what should I do with it? Anyone interested in buying this camera for parts only, make me an offer!
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