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03/02/2004 01:13:16 AM · #1 |
I am wondering if anyone actually uses the aperature preview button. I don't really see it 'work'. I am using a canon 10D and when i press the aperature close button, i see it gets darker so it IS working, but i don't really notice a difference in DOF, even if the aperature is very large (small Fstop)... do other people???
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03/02/2004 03:57:49 AM · #2 |
Yes, but it is not that easy to see in the viesfinder, esp. since the finder does get pretty dark at small aperture.
Try this:
Lay a sheet of newsprint in a bright location, mount a lens of preferrably => 100mm focal length, set camera in Av mode, set aperture for f/8, then view the page from a shallow angle and focus on a known spot. Depress the DoF Proview button and roll the dial to open & close the aperture. Note the near/far text coming in & out of focus. It's easy to see when you change it "on the fly" while viewing.
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03/02/2004 06:49:34 AM · #3 |
| I also occasionally use it but in only the brightest of conditions. |
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03/02/2004 07:39:15 AM · #4 |
Originally posted by leaf:
I am wondering if anyone actually uses the aperature preview button. I don't really see it 'work'. I am using a canon 10D and when i press the aperature close button, i see it gets darker so it IS working, but i don't really notice a difference in DOF, even if the aperature is very large (small Fstop)... do other people??? |
It works fine for me, but I rarely use it anymore. After taking so many photos, I feel that experience gives you get a pretty good feel for what aperature to use for a given situation. When I am in some doubt or want options later for comparison, I bracket on aperature.
On a side note, that is one of the very best parts of shooting digital, isn't it? You can set up a shot on a tripod and bracket not just 2 or 3, but even 5 stops and not worry about wasting film. What freedom...
Rich. |
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03/02/2004 07:52:04 AM · #5 |
I use it often, for both macro and landscape work where I actually care about the depth of field.
The 10D/ D60 has a pretty dark viewfinder which makes it tough to use, but it is still useful. I find in particular if I hold down the DoF preview and turn the aperture dial I can see the field changes.
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03/02/2004 08:38:43 AM · #6 |
I use it almost always. The only time I might not is if I'm useing a wide aperture because what you already see is what you get.
Yes it gets dark. Sometimes you can light it up with another light source to just to check the dof(set off a flash or use a flashlight).
When do you not care about dof? |
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03/02/2004 09:02:29 AM · #7 |
I use it all the time. Remember, when you look through the viewfinder, you will always see the most shallow DOF (shutter at the widest opening). It's not until you press the preview button that you see the effect of the smaller aperature.
However, the other posts are correct in the fact that one of the best parts about digital is the post review of a shot.
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03/02/2004 09:28:01 AM · #8 |
Originally posted by Kneeforu:
However, the other posts are correct in the fact that one of the best parts about digital is the post review of a shot. |
Even better, not only post review but also live preview, before the shot is taken.
My F707 always shows live preview, so not only the light and colors like the final image will have, but also the DOF the final image will have. I can really see the DOF changing when changing the aperture (especially in macro). So it is like the DOF preview button of an SLR is constantly pressed, without the disadvantage of the dark viewfinder.
One of the reasons to still stick with my F707, although the D70 looks very tempting.
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03/02/2004 10:30:28 AM · #9 |
I have an F717 too and I can say that the 10D destroys the F717 when trying to compose a shot. Even a little experience with a given lens will give you a good idea of what to expect with DOF from the 10D. What I found really annoying with the F717 is that in low light, the LCD is just a sea of pixels, washing about while 'previewing' the scene, which it isn't really doing at all...it's just reacting to the long shutter speed setting. This delay isn't a factor in the 10D's viewfinder, and with the vast difference in the ability to capture images with the 10D (from ISO 3200 to 1/4000th) you learn to appreciate an optical viewfinder and the ability to see a shot, and then rely on your experience to capture it.
Originally posted by willem:
Even better, not only post review but also live preview, before the shot is taken.
My F707 always shows live preview, so not only the light and colors like the final image will have, but also the DOF the final image will have. I can really see the DOF changing when changing the aperture (especially in macro). So it is like the DOF preview button of an SLR is constantly pressed, without the disadvantage of the dark viewfinder.
One of the reasons to still stick with my F707, although the D70 looks very tempting. |
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03/02/2004 10:48:42 AM · #10 |
Originally posted by jimmythefish:
I have an F717 too and I can say that the 10D destroys the F717 when trying to compose a shot. Even a little experience with a given lens will give you a good idea of what to expect with DOF from the 10D. What I found really annoying with the F717 is that in low light, the LCD is just a sea of pixels, washing about while 'previewing' the scene, which it isn't really doing at all...it's just reacting to the long shutter speed setting. This delay isn't a factor in the 10D's viewfinder, and with the vast difference in the ability to capture images with the 10D (from ISO 3200 to 1/4000th) you learn to appreciate an optical viewfinder and the ability to see a shot, and then rely on your experience to capture it.
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Fully agree, I would love to have an optical viewfinder, but I also like the DOF preview with sufficent light remaining to actually see what is happening (the delay/washing you mention is only disturbing me in very rare circumstances).
Both optical and LCD have their advantages and their compromises, I guess a system like the Olympus E-20, which has both, would be ideal, then you can use the optical viewfinder for composition, and the LCD for exposure preview, including histogram. Don't know why no manyfacturer developed this further, must be some physical limitations using a split/half transparent mirror. Maybe the difference to the current DSLR way of working is so small or the costs so high, that it is not worth the effort to develop this into preview instead of review.
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