Canon 450D FPS problem

[rottie102]

Guys, maybe one of you will be able to help me.

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

[RobDickinson]

Wierd.

1st the Auto modes will likely be shooting jpg. Are you shooting job or raw in manual modes? Still you should get 3.5fps for 7-8 shots here.

Have you got AF priority on? And AI Focus or Single? And single point AF? If so it wont fire unless you have focus and it will be harder to acheive focus with one focus point, Auto modes will use all focus points.

Also check things like noise reduction, highlite stuff etc.

[14-7]

rottie102 said:

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

I would imagine that the buffer memory is directly linked to the speed of the CF card installed. If you have a slow CF card then the buffer can't unload the information quick enough.

Have you tried it without the flash? I'd be very surprised if the flash can keep up with a 3.5fps rate which could be another problem may lie.

[RobDickinson]

http://www.dpreview.com/reviews/canoneos450d/page1...

You should get 7 shots almost irrispective of card speed. But it does state 2.5fps if you shoot raw+jpg, could be that.

[rottie102]

14-7 said:

rottie102 said:

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

I would imagine that the buffer memory is directly linked to the speed of the CF card installed. If you have a slow CF card then the buffer can't unload the information quick enough.

Have you tried it without the flash? I'd be very surprised if the flash can keep up with a 3.5fps rate which could be another problem may lie.

It's 450D so it's a SD card, not CF. And I'm using a class 6 Sandisk card so definitely up for the job. Also it does take 9 pictures in a buffer but ONLY in auto modes.
Another thing is I'm shooting in JPEG ONLY mode so the problem is not here either.

[Pvapour]

rottie102 said:

14-7 said:

rottie102 said:

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

I would imagine that the buffer memory is directly linked to the speed of the CF card installed. If you have a slow CF card then the buffer can't unload the information quick enough.

Have you tried it without the flash? I'd be very surprised if the flash can keep up with a 3.5fps rate which could be another problem may lie.

It's 450D so it's a SD card, not CF. And I'm using a class 6 Sandisk card so definitely up for the job. Also it does take 9 pictures in a buffer but ONLY in auto modes.
Another thing is I'm shooting in JPEG ONLY mode so the problem is not here either.

think rob has the answer, shooting in jpeg + Raw at the same time slows mine right down.

[rottie102]

Pvapour said:

rottie102 said:

14-7 said:

rottie102 said:

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

I would imagine that the buffer memory is directly linked to the speed of the CF card installed. If you have a slow CF card then the buffer can't unload the information quick enough.

Have you tried it without the flash? I'd be very surprised if the flash can keep up with a 3.5fps rate which could be another problem may lie.

It's 450D so it's a SD card, not CF. And I'm using a class 6 Sandisk card so definitely up for the job. Also it does take 9 pictures in a buffer but ONLY in auto modes.
Another thing is I'm shooting in JPEG ONLY mode so the problem is not here either.

think rob has the answer, shooting in jpeg + Raw at the same time slows mine right down.

Please read again. I DON'T shoot in Raw.

[Simpo Two]

Does removing the flash solve the problem? If so it may be that in a different mode the flash uses more power so isn't recharging fast enough.

(Just a wild geuss from a Nikon user so probably wrong)

[rottie102]

Ok, sorted.

After switching all the options on and off, I've discovered that the problem was HIGH ISO NOISE REDUCTION. Turning it off changes the buffer to 9.

[Pvapour]

rottie102 said:

Pvapour said:

rottie102 said:

14-7 said:

rottie102 said:

I shoot a lot of dog photos with my 450D. But I have a problem with a image buffer. Camera's 3.5fps is enough for me, but I can use it only in auto modes - moving objects or portrait WITH FLASH ATTACHED. This is the only time I can take up to 9 pictures in short succession. In shutter priority mode for example, even when I'll shoot sth like 1/1250 the buffer shows only 2 photos. I've tried everything but it becomes really annoying, constant AF in auto mode is unusable.

I would imagine that the buffer memory is directly linked to the speed of the CF card installed. If you have a slow CF card then the buffer can't unload the information quick enough.

Have you tried it without the flash? I'd be very surprised if the flash can keep up with a 3.5fps rate which could be another problem may lie.

It's 450D so it's a SD card, not CF. And I'm using a class 6 Sandisk card so definitely up for the job. Also it does take 9 pictures in a buffer but ONLY in auto modes.
Another thing is I'm shooting in JPEG ONLY mode so the problem is not here either.

think rob has the answer, shooting in jpeg + Raw at the same time slows mine right down.

Please read again. I DON'T shoot in Raw.

glad you fixed it