Having problems with your Canon EOS 40D Digital Camera ?

Flash exposure does not work in Av and Tv mode

\015 My EOS40D does not seem to account for the flash when calculating exposure in Av and Tv mode. In program mode, the flash works fine, but when I enter for example aperture priority and set the aperture to F4.0 or F5.6 and turn the flash on, I still get exposure times like 1/15 indoor. The flash fire anyway, and it is even used when I press the button down do meter the exposure, but the shutter speed is not set correct. In shutter speed priority I get the same problem. If I set shutter speed to 1/60, the aperture flashes to indicate under-exposure.\015\012In short, it seem to calculate exposure as if the flash should not fire. It does however fire...\015\012I have checked my settings over and over and cannot find anything but standard settings, and yes, the flash is activated.\015\012\015\012Any idea what is wrong?\015

Answers :

There is nothing wrong here - the camera computes the exposure as the flash is not firing. The flash will fire and it will adapt the power to the received light. You must go into M ot AV, fix your parameters and shoot. The flash will adapt to your whishes - only take care to not choose a shooting time to small (1/200 or 1/60 - you have settings for it).
\015\012
\015\012This is not a bug, but a feature.
Repair Help & Product Troubleshooting for Canon EOS 40D Digital Camera

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Flash exposure does not work in Av and Tv mode


There is nothing wrong here - the camera computes the exposure as the flash is not firing. The flash will fire and it will adapt the power to the received light. You must go into M ot AV, fix your parameters and shoot. The flash will adapt to your wh ... Canon EOS 40D Digital Camera

I have a Vivitar Camera that I bought from a Pawn Shop. The Flash worked fine for the first few months having it. I didn't use it for a while, and once I finally did, I heard 3 pops. After that my flash no longer works. When I switch into Flash mode it blinks and goes back to No Flash mode. Do you think it's the flash tube, the circuit or the battery that charges the flash? I opened the camera and nothing looks blown.


The 8025 is a very cheap camera....I hope you didn't pay more than $15 at the pawn shop. Your camera has a blown flash tube. The camera could have been dropped in water by the previous owner. You could have bought one at Walmart that would have at le ... Vivitar ViviCam 8025 Digital Camera

Flash is not working in regular mode. I have tried to enter the flash menu and get nothing. The flash menu and flash both work in scene mode, however.


... Nikon Coolpix L11 Digital Camera

Hi there, I have a nikon D50 camera and the inbuilt flash unit does not work any more.... it pops up in dark conditions bu tthen fails to fire. The camera will adjust the shutter speed as if the flash was turned off, and the flash doesn't work in any flash mode or any function mode. Could it be the bulb perhaps? I have reset the camera as well to no avail. please help! thanks :)


Hello, and welcome to Fixya.. This is a very common and known issue with the D50 camera by Nikon. Some buyers flash only works once and then quits. Its due to the speed of which the flash pops up, it literally breaks ... Digital Cameras

Hi, I've just recieved my nikon d90 back from a repair and service, and although everything appears to be working fine, whenever I want to change shooting modes,( auto, P, M, flash off etc), they only work once I have selected them, and then turned the camera off and back on. In other words I cannot be shooting in the Auto mode and then switch to "flash off auto"....all that happens is that the auto focus works but the shutter will not operate. If I switch the camera off and on however, I can t


I'm going to assume at this point that the camera has been serviced correctly. What I'd suggest is that you look in your manual and find where you can reset your camera back to the factory default settings. Okay here are a few thoughts that might be ... Nikon D90 Digital Camera with 18-105mm lens

On my Nikon Coolpix s210 my camara will not work when the flash is any on mode. The red flash light blinks but it will not take a pic. Will work if flash mode is off. Also seems stableization is off as pics are coming out blurry.


... Nikon Coolpix S210 Digital Camera

I am having SONY DSC W80 7.2 MP camera. since long back it was not in operation. now to day when i using it its flash not working properly. sometimes flash works sometimes not, some times photo comes dark sometimes very bright even if it flash is on auto mode or in always on mode. kindly advise is it any setting problem or technical problem.


There is problem with flash unit.you have to replaced flash unit.if you know that how replaced then buy from your near service center and replaced by opening your camera.if do not know then best to replaced by sony service center. ... Sony Cyber-shot DSC-W80 Digital Camera

The flash no longer works. In "auto" and in either the "auto flash" mode or "forced flash" mode no flash occurs. It is not in "suppressed flash" in the "portrait" screen position mode. The batteries are good. The shutter button is pressed after the charging is completed. The camera is not in "continuous shooting."


Hi there, \012Well first of all try to reset your camera, remove the battery from your camera for 4 hours and then insert them again, it helps you to do a hard reset in your camera. if further you have the same problem then there mus ... Fuji FinePix 3800 Digital Camera

I cannot turn the flash back on. When I push on the lightning bolt button nothing happens, the display shows the flash turned off. Is something wrong with the camera. I have not had it that long and just use the IA mode and I know it worked before; can I reset the camera back to factory settings? I tried all the other modes and was able to use in in C1 but then I was messing around with that and now won't work in that either. Thank you for your help.


... Panasonic Lumix DMC-FZ28 Digital Camera

P850 I need to figure out how to work my camera. The manual is not clear. For example, I dont want to take all of my picture is auto mode, I want to work with aperture, exposure and so on. When I put it in manual mode I can't figure out how to change the exposure and so on. Please help!!! Thank you in advance, Nancy


You need to read up or get lessons to learn manual photography. Search 'free beginners photography lessons' on Google and try to find a website which you like, as there are many with lot of great content. \015\012\015\012Essentially, you would need t ... Kodak EasyShare P850 Digital Camera

Flash has stopped working on my Nikon D40. I've tried a factory reset, tried to get to the flash setting but that menu option is no longer available (highlighted) in any mode. I'm thinking it's broken and not a setting thing. Everything else works fine and it still takes pictures just without the flash. The flash pops up when needed but no flash obviously.


There's a common problem in the flash arm. I found this link that shows a simple repair. If you use this and make the repair yourself, understand that you will void your warranty if you have one. Also, do not touch the bulb as you'll get oil on it ... Nikon D40 Digital Camera with G-II 18-55mm Lens

Camera Frozen When I turn on my DMC-FX07 none of the buttons work. The zoom doesn't work, the menu button doesn't work, the flash settings dont work. It won't switch from current picture when in viewing mode. I have tried all the picture wheel settings and every one is frozen. I have trie pushing and holding every button and removing and replacing and recharging the battery several times. When I replace the battery the autofocus works but then it freezes (when in heart mode) with the backli


Hi,I tried Option No.1 successfully when my Panasonic DMC-FZ7K froze once:Option No1:1. Try turning the camera on with the battery inserted.2. Now remove the battery while the camera is on. ... Panasonic DMC-FX07 Digital Camera

HI! the flash of my canon sx130 stops working. I tried pressing the flash button but it would not change to the "flash on" mode, the icon always says that the flash is off. I tried different camera setting but still not working. Thanks!


... Canon PowerShot SX130 IS Digital Camera

I am having problems with the flash working on my camera. It does not seem to matter if it is in automatic or manual modes. When I take a picture in either mode, when a flash is needed, the flash icon just blinks on the display. The camera will not take any photo when this is happening. The only way I can get my camera to take a photo is manually set the flash to off. Why is this happening?


Please reset camera through Reset option in Menu. This will set camera on default settings and any glitch in settings will be removed.Thanks. ... Canon PowerShot SD870 IS Digital Camera

I have a Kodak Easyshare model dx5430 digital camera (5mp). It has worked like a champ for years. Last night I was at an event when the image display went dark at picture 31. All preceding photos were able to be reviewed. The camera flash works fine. The camera displays all the other characteristics of a working unit. It turns on and off; the flash works, the menu is accessible - everything. It just doesn't register any photos. Even in close-up mode, there is nothing. It's as if the lens cap is


A stuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very ... Canon PowerShot A75 Digital Camera

D90 flash I just bought a new Nikon D90 and I was on a shoot and the built in flash popped up (in bright sun in manual mode) and I cannot get it to stay down. the camera will work but only to 200 shutter speed. if I hold the flash down then it will work at all shutter speeds. Any Ideas on how to get the flash to go down?


I have just fixed this problem on my D90. Go to http://dieselpic.wordpress.com/2010/07/14/d90-flash-wont-stay-down-how-to-fix/ to see how I did it. ... Nikon D90 Digital Camera with 18-105mm lens

The flash has stopped working. The red strobe light at the back flashes to tell you the flash is charging, but then does not stay red and when you take the picture the flash does not work, regardless of the mode of the camera.


The flash capacitor could be bad, or the batteries could be weak- make sure they're charged, and clean the battery and camera contacts with a qtip and at least 90% isopropyl alcohol.\015\012The flash consists of a small step-up transformer, a c ... Samsung Digimax A7 Digital Camera

Hi my sony Dsc H50 flash does not work on all other modes except 'easy' mode. when i try ingaging it on other modes message flash settings cannot be changed.


... Sony Cyber-shot DSC-H50 Digital Camera

Vivitar ViviCam V8300 Digital camera the flash does not work! I have tried the menu in all flash modes, but still does not work, I believe the flash tube must be "blown", if this is so, can this be replaced? and at what would the cost likely to be? Thank you.


I think it can be replaced.I don't know anything about the cost, but it shouldn't be that expensive, though.If you can fing a similar broken camera ..you could remove the flash from it and try and fix it to your camera. Cheers! ... Vivitar Digital Cameras

I can not get the auto flash to work The screen shows on the left: iso auto, a box, M1 on the right the flash symbol A, auto, steady hand symbol, 1375 I try to take a picture and the camera won't take unless I turn off the flash. I have tried to change many settings in the function area, but I can not figure out what I accidentally changed in the first place. please help me to get my camera to work in the auto mode again


I have this same exact problem. When you say "repair it," how? ... Canon PowerShot A720 IS Digital Camera

Flash Does not work. Can only take pictures in flash-off mode


The problem you are describing is a problem with the flash charging indicator switch inside the camera. It seems to have failed and needs to be replaced. Following are the instructions to send your camera to Olympus for service.\015\012 ... Olympus Stylus 410 / ? 410 Digital Camera

I can't get my camera to flash or work in the "Auto" mode. I've cleared all of the images, reset the settings and use custom settings. I place the camera on "Auto" and turn it on. It goes into the delay mode for 59 seconds and then goes to sleep. It won't take a picture or flash.


... Moultrie GameSpy 4.0 Digital Camera Deluxe

Built in flash will not work i put it on P mode still nothing i paid good money for this camera for this to happen also have bought the 580 ex speedflash 10-22mm ultra lens ef 70-300 lens and would like for the flash to work w/ the money i have tied up on accceroies want the fisheye lens but I'm leary now this camera was bought in dec 09


Dec. '09....the camera is still under warranty...take advantage of it. ... Canon EOS 500D / Digital Rebel T1i Digital Camera

Nikon s60 only works with the flash off. It dosent work with the flash set to any other mode?? Tried everything. Don't know what else to do.


HelloThank you for using FixYa for your problemYour camera is faulty. It should be taken to an authorized repair centre for a repair estimate. Very few digital cameras ... Nikon COOLPIX S60 Digital Camera

Exposure problem I have just purchased a Canon 40D. When shooting in Manual mode with an external flash, (photogenic) my exposure always looks correct thru the lcd but it always flashes -2 no matter what setting I have the camera on. What am I missing? I am relying on the camera's reading as my light meter is broken.


Your 40D requires that you use an ETTL-II type flash like the Canon 380-EX. What flash are you using? ... Canon EOS 40D Digital Camera
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.lionebra.com || Terms of Use || Contact || Privacy Policy
Load time: 0.1693 seconds