Black or dark strip when using Tv

[Mom27andblessed]

Can someone explain to me why I get a black strip across the bottom of my image when I'm using shutter priority?

[Hermeto]

Can you show us an example, with preserved EXIF?
It is possible that your mirror doesn't clear out of the way completely.

[Mom27andblessed]

sure thing...sorry...meant to do it the first time. It is not the camera strap or anything in the way of the lens. on some of the shots, the area is more like a shadow...not as dark as it is here.

ss 500
ap 4.5
ISO 800

[Hermeto]

Yep, seems like the same problem as in this thread..
http://photography-on-the.net/forum/showthread.php?t=345479

Time to visit Canon repair centre, I’m afraid..

[morlia]

are you using flash? if not...I have no idea

[Hermeto]

are you using flash? if not...I have no idea

Flash was not used for this shot.

Take a look here, this is a handy little program that lives in the right click of your mouse.

http://www.opanda.com/en/iexif/index.html

[JWright]

Seven children? The camera's tired! :mrgreen:

[morlia]

Flash was not used for this shot.

Take a look here, this is a handy little program that lives in the right click of your mouse.

http://www.opanda.com/en/iexif/index.html

Thanks I will get that reinstalled at some point. I am using a new computer and totally forgot about that.

[Mom27andblessed]

Actually, I had the flash on, but it didn't fire for some reason...I will have to look and see if the black appeared on any that the flash did fire. Different computer. Would the flash have anything to do with it??
And why is the shutter hanging up only in Tv mode? once I switched to any other mode, it stopped happening.

2 weeks...I may faint at the thought of being without my camera that long!

[Mom27andblessed]

Seven children? The camera's tired! :mrgreen:


LMAO!!! The camera ain't the only one!! :lol: :lol:

[In2Photos]

Actually, I had the flash on, but it didn't fire for some reason...I will have to look and see if the black appeared on any that the flash did fire. Different computer. Would the flash have anything to do with it??
And why is the shutter hanging up only in Tv mode? once I switched to any other mode, it stopped happening.

2 weeks...I may faint at the thought of being without my camera that long!
Yes it would. Your XT has a flash sync speed of 1/200. If you shoot at 1/500 and use the flash as your main source of light and not fill you will get black bars similar to the one shown here. If you use HSS (high speed sync) on your flash then you can shoot at faster speeds than 1/200 but at the price of losing power. But in this shot since the flash did not fire something else is wrong. But try it again with a lower shutter speed (like 1/125) and see if the problem still exists.

[sixsixfour]

either the flash sync speed is not met (exceeded 1/125, in that case set to the H with the flash symbol on the speedlite). or you might be having a failing shutter, which is bad.

[Mom27andblessed]

Yes it would. Your XT has a flash sync speed of 1/200. If you shoot at 1/500 and use the flash as your main source of light and not fill you will get black bars similar to the one shown here. If you use HSS (high speed sync) on your flash then you can shoot at faster speeds than 1/200 but at the price of losing power. But in this shot since the flash did not fire something else is wrong. But try it again with a lower shutter speed (like 1/125) and see if the problem still exists.


I lowered the SS and no bar...I raised it back slowly up to 500...500 seems to be the magic number. The bar appears in any pic shot at over SS 500

THANK YOU SO MUCH!!!! I'm SOO relieved that I don't have to send my camera away...I have a picnic for our Down syndrome support group this weekend and am supposed to collect shots of all the kids for the website!

[20DNewbie]

Good to hear it's sorted.

Flash was not used for this shot.

Take a look here, this is a handy little program that lives in the right click of your mouse.

http://www.opanda.com/en/iexif/index.html

Hmm, currious, my opanda said exif not supported. My FF extension seems to be working though.

[In2Photos]

I lowered the SS and no bar...I raised it back slowly up to 500...500 seems to be the magic number. The bar appears in any pic shot at over SS 500

THANK YOU SO MUCH!!!! I'm SOO relieved that I don't have to send my camera away...I have a picnic for our Down syndrome support group this weekend and am supposed to collect shots of all the kids for the website!
Your problem might not be completed sorted though Cindy. Were you using flash this time to test for the bar? Try this to check as well.
Go outside on a nice sunny day, set the camera to Av and set your aperture to wide open. This should put your shutter speed above 1/500. No flash, and take a picture. What happens? Bar? No bar?
Good to hear it's sorted.



Hmm, currious, my opanda said exif not supported. My FF extension seems to be working though.
My Opanda works just fine in IE on her posted shot.

[René Damkot]

Exif will also say 'no flash' if a non dedicated flash was used...

My first guess would be the shutterspeed of 1/500 combined with the use of a flash: Seems about correct with the amount of black.

If it also shows up on higher speeds outside, it's time to send the camera to Canon.

[Gatorboy]

The problem is shooting with flash and exceeding your Sync Speed.

[Mom27andblessed]

Your problem might not be completed sorted though Cindy. Were you using flash this time to test for the bar? Try this to check as well.
Go outside on a nice sunny day, set the camera to Av and set your aperture to wide open. This should put your shutter speed above 1/500. No flash, and take a picture. What happens? Bar? No bar?

My Opanda works just fine in IE on her posted shot.

Well, I usually do shoot in Av and have been really trying with the wider apertures...and have never seen a bar before last night...but I'm going to check again tomorrow. Thanks again so much everyone for your help. I am seriously addicted to my camera. DH is jealous! LOL!! Even my 16 year old asks me if I kiss her goodnight (the camera that is) LOL! He says he would if he had one!

I'll check that tomorrow and let you know if there is or isnt' a bar.

[JWright]

It would also help to know what kind of a flash you are using. If it is the built-in pop-up, or a dedicated Canon EX Series, then the camera should automatically override the set shutter speed and reduce it to within the proper sync limits.

[PacAce]

Flash was not used for this shot.

Take a look here, this is a handy little program that lives in the right click of your mouse.

http://www.opanda.com/en/iexif/index.html

How do you know that the flash was not used? How do you know, just by looking at the Exif, that a flash was not used and plugged into the PC terminal. That won't show in the Exif. If I had to make an educated guess, I'd say that the flash was used and because the shutter speed was set higher than max sync speed, she got that dark bar at the bottom of the frame. :)

[Edit: As usual, I'm late to the party again. :o
I guess this is one place where it's not fashionable to come in late to the party. :rolleyes:
:lol: :lol: :)

[Hermeto]

How do you know that the flash was not used? How do you know, just by looking at the Exif, that a flash was not used and plugged into the PC terminal. That won't show in the Exif. If I had to make an educated guess, I'd say that the flash was used and because the shutter speed was set higher than max sync speed, she got that dark bar at the bottom of the frame. :)

[Edit: As usual, I'm late to the party again. :o
I guess this is one place where it's not fashionable to come in late to the party. :rolleyes:
:lol: :lol: :)

I didn’t know any of that, just as much no one knew at the time this answer was posted.
I answered the way I did, because:

A) That was the direct answer to the previous question.
B) EXIF showed that no flash was used.
C) OP mentioned using a flash only 10 hours after that answer was posted.

If I had to make an educated guess, I'd say that - rather than being a meeting place for mind readers - this forum is free and open discussion in which members are allowed to arrive at a proper conclusion after evaluating all relevant information.

It is easy to be a general after the battle, isn’t it?

[PacAce]

I didn’t know any of that, just as much no one knew at the time this answer was posted.
I answered the way I did, because:

A) That was the direct answer to the previous question.
B) EXIF showed that no flash was used.
C) OP mentioned using a flash only 10 hours after that answer was posted.

If I had to make an educated guess, I'd say that - rather than being a meeting place for mind readers - this forum is free and open discussion in which members are allowed to arrive at a proper conclusion after evaluating all relevant information.

It is easy to be a general after the battle, isn’t it?
As you can see from my previous [EDIT] entry, I posted my reply to your post immediately after I read it and before I read the rest of the thread so, no, I'm wasn't responding to your thread because I already knew the "answer". As I said, if I were to have made an educated guess that that point in the thread when I responded to your post, that's what I would have guessed.

The point I was trying to make was that you replied to the previous poster that the flash was not used based on the fact that the Exif info stated that a flash was not used. I was merely asking how you could come to that conclusion based solely on the Exif info. The Exif info about the flash is pertinent only when an ETTL compatible flash is connected to the camera. If you attached a non-dedicated flash, the camera would have no way of knowing that a flash is hooked up even though it will fire the flash when you release the shutter.

I wasn't trying to get on your case or give you the third degree. My questions were more rhetorical than anything else. And that's the reason I had the smiley face in there, just so there would be no misunderstanding. Or so I thought. Sorry if it didn't come across the way I really intended it to.