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DPChallenge Forums >> Tips, Tricks, and Q&A >> DOF preview on 300D
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Showing posts 1 - 10 of 10, (reverse)
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04/15/2004 07:12:57 AM · #1
Just received my 300D/Rebel and I´m realy happy with it and cant wait to get out for some serious shooting.
I have a Canon 24-85mm USM lens which I think is a pretty decent lens for it´s value and suits me fine for the time being (untill I get better photographer and have some money).
I´ve been using Canon A70 which is a fine camera but though I´ve mostly been using manual controlles it´s obvious that I´m entering a new world with my already beloved DSLR.
I´ve been scrolling through the manuals and trying to figure out all the settings and controlls but there is one thing that I´ve not figured out perfectely and thats the DOF review and I would be greatful to you here that can explane it to me.

Thanks, Garlic

P.S. I was litle worried about the silver color but when looking at it it most certainly do not look cheap or unprofessional though maybe I would have chosen a black one if I had that option.
04/15/2004 07:15:14 AM · #2
I think when you look thru the viewfinder the aperture is wide open to let as much light in as possible. When u press the DoF preview, it closes to the aperture that you selected, showing you how the DoF will look. The problem with this is that it doesn't let as much light in so the image on the viewfinder becomes dim.

Message edited by author 2004-04-15 07:15:41.
04/15/2004 07:27:04 AM · #3
Originally posted by Konador:

I think when you look thru the viewfinder the aperture is wide open to let as much light in as possible. When u press the DoF preview, it closes to the aperture that you selected, showing you how the DoF will look. The problem with this is that it doesn't let as much light in so the image on the viewfinder becomes dim.


Exactly.
Do you find this option useful or do you never use it?
04/15/2004 07:29:16 AM · #4
My Nikon D70 has an equivalent feature but I haven't noticed any effect whilst testing. Should I use Aperture Priority at f/22 to test it out?

Cheers,
Terry W.
04/15/2004 07:30:22 AM · #5
I've never used it, I just take a shot and see how it comes out on the LCD, then adjust accordingly.
04/15/2004 08:14:50 AM · #6
When I'm looking for certain things to be in the field of focus I do use it. One mode I've also experimented with is A-Dep. This mode sets the aperture to put as many of the objects on the 7 AF points in focus as it can. Not as flexible as the DEP mode on my film camera but still fun to experiment with.
04/15/2004 08:27:08 AM · #7
Originally posted by tezza73uk:

My Nikon D70 has an equivalent feature but I haven't noticed any effect whilst testing. Should I use Aperture Priority at f/22 to test it out?

Cheers,
Terry W.


Yup - aperture priorty or manual is the best way to see the impact of DoF preview in a reliable way.

If you press it when the aperture is set to wide open, or close to it, you'll probably not even notice anything at all - the lens is already wide open, so nothing changes or is so subtle you probably wont see it.

Step the lens all the way down and press it and everything will go dark - but the DoF you can see will be much higher.

I use this a lot for shots where DoF is significant - it is certainly more noticeable in macro shots or when you have a subject close to the lens, with a reasonably far away background, for example.
04/15/2004 10:32:22 AM · #8
Originally posted by cpanaioti:

One mode I've also experimented with is A-Dep.

Yeah, it's amazing why Canon ever thought this would be easier or better than DEP. At least with the 10D you have more AF points, but the 3 points on the D60 make it particularly annoying, essentially useless.
04/15/2004 10:37:40 AM · #9
If you have a flash attached (550ex for example), the DOF preview will light the flash for a couple of seconds so you can get a pretty good idea about shadows/light/etc. when it goes off for the actual shot.
04/15/2004 10:43:35 AM · #10
Originally posted by dwoolridge:

If you have a flash attached (550ex for example), the DOF preview will light the flash for a couple of seconds so you can get a pretty good idea about shadows/light/etc. when it goes off for the actual shot.


Ok, that can be useful. Othervise I dont think I will use this option alot.
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