How to shoot Tv bracket sx200 IS

erat

« on: 02 / November / 2010, 16:42:44 »

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I'm not able to shoot Tv dng bracket shots. I only get one photo even if I'm holding shoot button. (I'm probably doing something wrong:

I'm using sx200 is version 1.00D.

I have mode in manual, shutter time 15", F is 8.0. I have set (and it shows in orange on the screen) bracket +/- TV: 4Ev. Continuous shoot is selected, because I can't find custom drive mode.
Disable overrides is Off, include AutoIso & Bra is on.
Override shutter is set to 40.3 for a long exposure time (night shoot), value factor is off. Shutter enum is set to Ev step.
Clear bracket values on is off
add raw-suffix is on.

I thought I was supposed to be able to select how many photos the camera automatically shoots each with different exposure time (that time depending on bracketing Tv setting and original Tv setting) without having to press shoot button. But even if I repress the shoot button manually I still get the same shutter time. Did I miss something vital for my HDRI tests?

- eRat

« Last Edit: 05 / November / 2010, 09:11:40 by erat »

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reyalp

13668

Re: How to shoot Tv bracket sx200 IS?

« Reply #1 on: 02 / November / 2010, 17:31:15 »

Bracketing in continuous mode only requires holding down the shutter for the bracketed sequence. That's how Canons continuous mode works.

If you use custom timer (assuming it's available on your camera, which I think it is) you can then start the sequence by pressing the shutter once. Custom timer should be described in your camera manual.

You could also do all of this (and much more

) with a script.

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andrewhazelden

Re: How to shoot Tv bracket sx200 IS?

« Reply #2 on: 02 / November / 2010, 17:38:19 »

Here are a few things to look into that could be affecting your ability to shoot bracketed RAW images:

#1 Is the camera set to take photos in continuous mode? Are you holding down the shutter button long enough to take the series of photos?

In the Extra Photo Operations menu is Disable Overrides set to Off?
Is Clear override values @ start unchecked so your settings are remembered?

In the Extra Photo operations menu > Bracketing in continuous mode menu:
Is Clear bracket Values on start unchecked so the bracketing values are remembered?
Is a large TV bracketing value like 1 or 2 EV set?

In the RAW menu:
Is Only first RAW in series unchecked?

In the RAW > Exceptions menu:
Is Disable RAW @ Burst unchecked?

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Canon SD780IS

erat

Re: How to shoot Tv bracket sx200 IS?

« Reply #3 on: 03 / November / 2010, 05:48:51 »

Thanks for the tips! Still not working though.

All the above settings were correct for bracketing. I don't think there is a custom drive mode without a script in this camera. If I keep the shutter button pressed for the whole 60 seconds the camera takes a new picture after the "please wait" period, but the shutter time is the same as with the first one.

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reyalp

13668

Re: How to shoot Tv bracket sx200 IS?

« Reply #4 on: 03 / November / 2010, 12:06:12 »

Quote from: erat on 03 / November / 2010, 05:48:51

Thanks for the tips! Still not working though.

Custom timer not "drive mode". See page 80 of your sx200 manual.

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erat

Re: How to shoot Tv bracket sx200 IS?

« Reply #5 on: 04 / November / 2010, 17:58:37 »

Thanks for clarifying. Yes, I triple facepalmed for not reading properly.

Thanks to you, I now seem to be able to work with short ~ 1-10 sec shutter times. However, the camera freezes totally with long changes on shutter speed 3-4ev + or -, original time being 10 or 15 secs. I have to remove battery and put it back in to make camera work again. I doubt it prolongs my camera's age

Any hints for this freezing?

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reyalp

13668

Re: How to shoot Tv bracket sx200 IS?

« Reply #6 on: 04 / November / 2010, 22:05:52 »

Are you sure it's freezing ? 15 sec + 4ev = ~4 minutes. Unless you have dark frame subtraction forced off, the actual time will be double that.

Note that this is far beyond the normal limit imposed by the Canon firmware, so any failure or reduction in service life is entirely your responsibility.

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Don't forget what the H stands for.

erat

Re: How to shoot Tv bracket sx200 IS?

« Reply #7 on: 05 / November / 2010, 09:11:19 »

You're right. I was too used to having "please wait" text on the screen after normal exposures. Now that I use extra long exposures the "please wait" text only stays for a few seconds then vanishes leaving the frozen image on screen for a very long time. starting at 5 secs, 5 images, -2 Ev makes me wait for an hour. Need to buy a thermo-suit for me and my canon for those waits.

I'm aware that it's my responsibility, although I will deny anything and everything if I break anything or everything. I remember what H stands for.

Thanks again.

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