Rebel T5i & Adusting shutter speed under Program (P) mode........

[scottjg24]

I've read through the original manual, which came with my T5i along with T5i tutorials, etc. in regards to adjusting shutter speed under Program mode.  I think that I have to halfway press down the shutter button while moving the wheel behind it.  Not quite as easy as it looks.  Any suggestions?  I would like to thank all of you guys for your very prompt replies to my previous T5i-related questions within the past month or so.

[ScottyP]

That half shutter move seems too fiddly to be the only way. 

Does the Q button give access to the shutter speed like it would in all the creative modes?

[jrhoffman75]

If you half press the shutter button you start a timer (I think its six seconds). Then you can use shutter finger to turn the front dial. As long as you turn the front dial the timer stays on. 

[cicopo]

I don't think you're on the right path here. To the best of my knowledge you can't adjust the shutter speed in P mode. You need to select Tv (Time Value) mode to control the shutter speed. What you can do in P mode is fine tune the shutter speed or aperture (the camera will decide which one) using Exposure Compensation & that's done after the half press on the shutter button.

[jrhoffman75]

It might be a terminology issue, but Program Shift is adjusting the shutter speed. It maintains correct exposure by compensation with f/stop change. Exposure Compensation is different; it only changes one variable.

What you cannot do in Program Mode is "lock" a fixed shutter speed. Each time you press shutter button the camera selects the shutter speed based on the built-in algorithms. and you would need to re-select the desired shutter speed.

[RobertTheFat]

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@jrhoffman75 wrote:

It might be a terminology issue, but Program Shift is adjusting the shutter speed. It maintains correct exposure by compensation with f/stop change. Exposure Compensation is different; it only changes one variable.

What you cannot do in Program Mode is "lock" a fixed shutter speed. Each time you press shutter button the camera selects the shutter speed based on the built-in algorithms. and you would need to re-select the desired shutter speed.

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I think you've got it right, but it seems like a rather pointless capability. If you know what shutter speed you want, why not just use Tv mode?

Maybe it's a glitch that they discovered after it was too late to change it; so they incorporated it into the manual, pretending it was a feature instead of a bug. 

Or I suppose it could be a half-hearted attempt to compensate for Canon's traditionally lame shutter speed limiting feature.

[jrhoffman75]

I know it's been a capability in the original EOS line and may have been in the AE1-Program. 

For the same reason many folks shoot Program instead of Manual or Tv/Av - in P you are always ready for a good shot, but there may be a time when you want a higher or lower shutter speed or aperture for a given shoot/subject.