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DPChallenge Forums >> Hardware and Software >> XT Question
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 09/16/2005 11:18:24 AM · #1
Can the Canon Digital Rebel XT take pictures for longer than 15 seconds...is it unlimited?? (I'm talking about how long you can keep the lense open for night shots) Becuase I have a Canon A80 right now and I can only keep the lense open for a max of 15 seconds.
Thanks
 09/16/2005 11:19:58 AM · #2
Yes, it has presets up to 30 seconds and a bulb mode for longer exposures.
 09/16/2005 11:20:18 AM · #3
Yes. It goes incrementally up to 30 seconds and then has a Bulb function (unlimited).
 09/16/2005 11:21:02 AM · #4
What's Bulb Mode? Is that with the flash?
 09/16/2005 11:22:47 AM · #5
There is a "bulb" mode, so you can keep it open as long as you keep your finger on the shutter release. I have never used it, but I think its best with the IR remote, one press for one, another for off.

There are probably people more able to answer your questions, but I think its often better to take a few shorter exposure shots & stack them rather than leave it open for ages, due to noise.

Hope it helps dood!

Edit:
heres the remote: RC-1
But I heard a old nokia hands-free kit does the same job (but with a wire...) and you could probably get one for a couple of $'s (do a google search!)

Message edited by author 2005-09-16 11:25:46.
 09/16/2005 11:26:59 AM · #6
The term "Bulb" mode is a remnant of the days when there was actually a rubber bulb that you pressed to release the shutter. Bulb mode is basically as long an exposure as you want. Noise becomes an issue although DSLR's are getting better and better at this.
 09/16/2005 11:27:29 AM · #7
I have the XT and the external cable release (plugs in).
Bulb = long exposure. It is called bulb as the early cameras used a rubber airfilled bulb which you squeezed to activate the shutter. The longer you kept it pressed, the longer the shutter stayed open.
The eletrical switch has 2 positions and a lock.
Press it 1/2 way down and the camera focuses. Press the rest of the way & the shutter opens. When it is pressed slide the button forewards and it locks in the pressed position untill you release it (Or the battery goes flat).
 09/16/2005 11:29:06 AM · #8
Originally posted by aKiwi:
I have the XT and the external cable release (plugs in).
Bulb = long exposure. It is called bulb as the early cameras used a rubber airfilled bulb which you squeezed to activate the shutter. The longer you kept it pressed, the longer the shutter stayed open.
The eletrical switch has 2 positions and a lock.
Press it 1/2 way down and the camera focuses. Press the rest of the way & the shutter opens. When it is pressed slide the button forewards and it locks in the pressed position untill you release it (Or the battery goes flat).


Do you have the website where I can see this/buy it??
Thanks!!
 09/16/2005 11:29:43 AM · #9
Originally posted by Tom2898:
What's Bulb Mode? Is that with the flash?


"Bulb" mode referres to the "golden" days of photography (before the K1000) wnen a ball or bulb was used to release the shutter. As long as the bulb was held the shutter stayed open

On your (d)SLR when you are in bulb bode you depress the shutter release once to open the shutter and once to close it.

09/16/2005 11:33:38 AM · #10
Just search for the Canon RS60-E3.
By the way, the switches are pretty simple to make yourself if you are handy with a soldering iron.
The plug used is a standard walkman headphone plug. The advantage is you can extend the length of the cable with a cheap headphone extension cord.
 09/16/2005 11:34:55 AM · #11
Originally posted by Tom2898:
Do you have the website where I can see this/buy it??
Thanks!!


B&H has it.
09/16/2005 11:35:58 AM · #12
the cable release is as much as the RC is.
 09/16/2005 11:37:39 AM · #13
Here is how you can make it for about $3:

XT Switch Instructions
 09/16/2005 11:39:46 AM · #14
Cheers JAYWALK! thats what I was looking for! gonna have a crack this weekend.
 09/16/2005 11:42:18 AM · #15
Originally posted by notonline:
the cable release is as much as the RC is.

Yep, but it is something I use purely for slow shutter exposures. I haven't used it for self portrait yet & I don't like things that need batteries. They are garanteed to be flat at exactly the wrong moment.
 09/16/2005 11:42:25 AM · #16
The Canon RC-1 wireless remote will work (I have it) and costs less than the wired switch. You'll have more flexibility with a wireless remote for self portraits and such.
 09/16/2005 11:42:31 AM · #17
Originally posted by nomad469:


On your (d)SLR when you are in bulb bode you depress the shutter release once to open the shutter and once to close it.


Not quite accurate; that would be a "time" exposure and dSLRs don't seem to have them. The "bulb" exposure keeps the shutter open as long as it is depressed. So one press, and hold for duration of exposure. Canon's less-expensive release, as mentioned below, has a sliding lock button to hold the shutter open. The more expensive one is programmable for long exposure times.

Robt.
 09/16/2005 11:45:58 AM · #18
Originally posted by scalvert:
The Canon RC-1 more flexibility with a wireless remote for self portraits and such.


Great Point...you don't want to see a cable in your portrait
 09/16/2005 11:48:26 AM · #19
Originally posted by scalvert:
The Canon RC-1 wireless remote will work (I have it) and costs less than the wired switch. You'll have more flexibility with a wireless remote for self portraits and such.


I think the wired remote would be a more flexible option unless you take self potraits alot. With the wireless you have to be in front of the camera to use it.
 09/16/2005 11:50:46 AM · #20
Originally posted by dsmeth:
Originally posted by scalvert:
The Canon RC-1 wireless remote will work (I have it) and costs less than the wired switch. You'll have more flexibility with a wireless remote for self portraits and such.


I think the wired remote would be a more flexible option unless you take self potraits alot. With the wireless you have to be in front of the camera to use it.


actually it will fire the camera from behind as well. I've seen it done outside at night with p3wiz.
 09/16/2005 11:51:57 AM · #21
Originally posted by dsmeth:
With the wireless you have to be in front of the camera to use it.


Well, yeah, but it's not really a problem. I use mine with the telescope all the time... just reach around and hold the remote in front of the IR sensor (not the telescope or lens) and push the button.
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