1/120 Shutter Speed & Auto Aperture possible??
I can't find a way for the life of me to shoot 1/120 shutter fixed.. but auto aperture. It won't let me chose 1/120 in A, TV, AV modes. Manual is fine except no auto aperture. Please help!
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See page 554 of the manual. 1/120 shutter speed is not available in Tv mode, 1/100 and 1/250 are. In Av mode the aperture is fixed and the shutter speed is automatically adjusted.
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It's possible to access shutter speeds manually in Av mode by pressing the Exp. Lock button, but otherwise Don is quite correct as usual: 1/120 is not available in A, Tv or Av modes.
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I'm assuming you can't assign auto aperture in "M" mode?
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Nope, as that mode is definitely "M" all the way around (completely manual).
Tv mode is the better way to go. In Tv mode the shutter speed is locked where you want it while the exposure is automatic; simply press the Exp. Lock button to switch off auto iris and enable full manual control of the aperture. Tv mode plus Exp. Lock is just like shooting in M mode (full manual) with the added bonus of having auto iris on or off at the push of the Exp. Lock button. |
Yes.. the only thing that I don't understand is why you can't select 120 shutter in TV mode.
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The missing 1/120 speed is common to the NTSC XL-2 and XL-H1 as well. Don't know offhand about the XL1 or XL1s (is not enumerated in the manuals)
FWIW, the PAL version of the XH-A1 will let you select 1/120, but not 1/100. That might imply that there is a specific reason related to nominal frame rate or power line frequency. The difference between 1/100 and 1/120 is what, 1/4 of a stop? |
Am I doing myself a disservice concerning the learning curve of this camera by practicing only in M mode and not exploring Tv, Av and whatnot?
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Tv has become my go-to mode. From everything I've been shooting, it's been the only mode I need to use.
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I have wondered about this as well. So from what I'm understanding, you'd mostly keep the iris locked on your preferred setting but if the space you are in has a sudden jump in light or dark, you can quickly hit the button to get the best iris setting at that moment, then repress back to your preferred locked.
I'm finally getting used to managing the manual controls at the front with my free hand, but I find if I have to hit the IAF button I'm hunting for it. The exposure lock button isn't an easy access either. Trish |
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You know how handy the Push AF button is for momentary auto focus? This is almost the same thing for AE as it is for AF, except Push AF is press-for-auto-release-for manual focus, whereas Exposure Lock isn't a momentary press but a switch -- that is, you have to press it again to return to the previous exposure mode. Quote:
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Thanks, Chris, for the speedy reply and Trish for expanding.
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thanks for taking the time to respond in detail - very much appreciated trish |
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Thank you so much for this tip. It's incredibly useful. I have just been reviewing footage I shot at the weekend of about 20 old time musicians playing in a canteen with artifical light at one end and big windows both sides at the other with sunshine flooding through. Exposure was a bit hit and miss. I find that setting exposure is more difficult on the A1 than on my previous cameras but this tip fixes that problem brilliantly. Now if only Cannon had not disabled push autofocus from the lanc controller (it worked on the XL1 etc) the camera would be almost perfect! |
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