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DPChallenge Forums >> Hardware and Software >> P&S and exposure settings
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01/05/2006 03:58:35 AM · #1
I have been playing around with my new Canon SD450 and I have a couple of questions. The camera doesn't let me set shutter speeds or apertures. Well, there is one "long shutter" mode and it lets me set the shutter speed starting from 1 second and up, but I get set it faster. I haven't used a point and shoot in ages and I was wondering if that is just how all point and shoots are. My old Kodak only let me set long shutter speeds too but that camera is archaic. I also can't figure out how to set the focus points. I see the icon by the shutter button but I just can't figure out how to change it. Another thing that bugs me is that you have to go into the menu to change just about everything, but I guess that's the cost of having such a compact camera with less buttons. Other than that, I like the camera and I am looking forward to actually using it properly. So, I think using DSLRs has made me dumbmer :P

June
01/05/2006 04:18:42 AM · #2
the one i have P73, allows the shutter till 30 sec (or a good range of speeds), but the catch is in full wide mode i can chose only either 2.8 of 5.6 for apperture, and if i go towards tele mode it will be between 4 to 8 for apperture.
i have been using my P&S as point and point only till now, but soon i will buy a tripod and have decided to work under these limitation for 2-3 months to give myself challenge and i hope it will make me learn also.
01/05/2006 04:36:29 AM · #3
Originally posted by Chiqui:

I have been playing around with my new Canon SD450 and I have a couple of questions. The camera doesn't let me set shutter speeds or apertures.


Well, you seem to have chosen one of those "fully auto" P&S cameras where manual controls are kept to the basic minimums. The SD450 is one of them, unfortunately.

Originally posted by Chiqui:

Well, there is one "long shutter" mode and it lets me set the shutter speed starting from 1 second and up, but I get set it faster.


As the name implies, "long shutter" so it starts from 1 sec and lets you set it longer, but not shorter. It's for night scenes, but I'm sure the longest shutter lets you make pretty light streaks just as well :)

Originally posted by Chiqui:

I haven't used a point and shoot in ages and I was wondering if that is just how all point and shoots are.


Not all P&S cameras are that "watered down". Its just that the Canon IXUS line is meant to have more form than function, I guess.

Originally posted by Chiqui:

My old Kodak only let me set long shutter speeds too but that camera is archaic. I also can't figure out how to set the focus points. I see the icon by the shutter button but I just can't figure out how to change it.


Here in the menu is how you change the focus points. By default it is set to auto, using 9 focus points. Select Centre Weighed or Spot (I personally prefer Spot-centered on most cameras)


Originally posted by Chiqui:

Another thing that bugs me is that you have to go into the menu to change just about everything, but I guess that's the cost of having such a compact camera with less buttons. Other than that, I like the camera and I am looking forward to actually using it properly. So, I think using DSLRs has made me dumbmer


Have fun with the camera! :) Take some movie clips too, it's loads of fun.

Message edited by author 2006-01-05 04:38:06.
01/05/2006 04:38:27 AM · #4
I looked thru the Advanced User Manual on Canon's website:

Page 45 indicates you can't control which focus point is used; that is you have two modes, in the first one the camera uses 9 focus points to determine correct focus, in the second mode you control the focus -- but only on with the center focus point.

As for exposure,
page 21 discusses the histogram
page 49 discusses Metering Modes
page 50 discusses exposure compensation
page 51 discusses long shutter speeds (which you mentioned)
page 63 discusses ISO settings
So from looking at these, I would say the only exposure control you have is to set the metering mode and watch the histogram while adjusting the exposure compensation and ISO settings if needed.

I didn't find any reference to them, but if there are shooting modes, such as Sports, Landscapes and so on, they might provide some secondary control of the shutter and aperture. For instance, a sports mode would value a fast shutter over a slow one and a landscape mode would value a small aperture over a large one.

Hope that helps.

David
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