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Aperture remains fully open, cannot adjust - Cameras

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If its just how to change the settings on your camera then your manual will tell you how. If you mean how changing these settings effects the final outcome of your photograph then I can recommend Langfords Starting Photography book which will explain all you need to know regarding these.
Its best to keep your ISO as low as possible in order to avoid noise in your images, however night shoots need a higher ISO but a tripod is recommended to avoid picture shake.
Shutter speed determines how long the camera shutter stays open letting let in. Shutter speed is often shown as 1/125 or 1/15 for example and what this actually means is that the shutter will stay open to let light in for either 125th or 15th of a second. By changing how shutter speed is set alters the final outcome of your image. Let's say you wanted to take a photo of a waterfall and you wanted to freeze the action so that you could see the waters movement clearly, then you would use a fast shutter speed such as 1/500 or higher. However, instead if you wanted the water to look blurred then you would use a slow shutter speed such as 1/15 or lower.
Aperture which is also known as f numbers are often shown as F2.8 or F8 for example, and these can affect depth of field. Depth of field determines just how much or how little of your final image remains in focus. By choosing a high f number like F8 or higher means that the majority of your final image will be in focus whereas, a low f number like F2.8 or lower makes the foreground stay in focus and the background will be blurred.
Hope this helps.....


thanks

Posted on Apr 09, 2011

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Message: Lock lens aperture ring at minimum aperture (largest f-number) I think I'm doing this but the message won't go away and the camera won't work.


You must lock the aperture ring to f/22, so the camera can engage the aperture adjustment lever on the lens. Then, you can change the aperture with the command wheel.

When you change the aperture with the command wheel the aperture ring on the lens doesn't move when the camera actually adjusts the lens aperture.

Take the lens off and locate the aperture adjustment lever on the lens mount.

Unfortunately, this won't work with older AF lenses. So if you are using an older lens, the only thing you can do is change the camera setting to M (Manual) to adjust the aperture on the lens yourself.

May 16, 2011 | Nikon D60 Digital Camera

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When looking through the view finder the image is very dark. I had it in storage for a while and it gets cold in the winter. I wasn't thinking about the temperature effecting it and I really hope I didn't...


Sounds to me as if the aperture is stopped down. It should normally be fully open except during an exposure, to allow viewing at full aperture. Whether it is stuck or whether you have just set the stop-down lock manually I cannot tell from here. If you turn the aperture ring to the fully open end and it is still shut down, then it is stuck. This typically happens when the blades get a bit of oil on them. It can be fixed, but it isn't really a DIY job.

Jan 16, 2011 | Nikon N80 35mm SLR Camera

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The light meter is not working, in AV mode the shutter speed constantly remain at 30 seconds.


It would be nice to know what camera make and model you have. However in AV mode the photographer inputs the aperture (AV meaning Aperture Priority). If you then have the aperture set at (for example) F11 and dim lighting conditions the shutter speed will be long in an attempt to give the correct exposure. If you have a meter reading you see in the viewfinder the needle will be way to the - side of the scale it may be dim enough that attempting to adjust the Aperture a few stops makes no difference in this reading. My though is, if the meter is working in "P" program and you are getting correct exposure then it's user input error rather then meter malfunction.

Jan 07, 2011 | Canon Cameras

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Assistance in using the P for taking pictures How do you use the dials to determine a good picture.


The settings depend on what you're trying to say with the picture. You probably wouldn't want the same settings for a portrait as you would for a landscape. Two photographers at the same place and time with identical cameras probably wouldn't use the same settings, as each photographer has his/her personal style.
In the Program mode the camera select the shutter speed and aperture it deems optimal. You can turn the command dial to adjust the exposure, increasing the shutter speed and opening up the aperture, or decreasing the shutter speed and closing down the aperture by turning it the other way. Either way, the exposure itself remains the same.
If you're taking a landscape picture, you'd probably want a small aperture to get the maximum depth of field. If you're taking a portrait, you'd probably want a large aperture to blur the background. If you're taking an action picture, you'd probably want a fast shutter speed to capture the action. Of course, those are just guidelines. Sometimes you want to blur the action, or throw some portion of the picture out of focus. It's up to you. You use the settings to take YOUR picture.

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1 Answer

X-370S 35mm SLR Camera: what is the best aperture, shutter speed and iso f...


Your camera light meter should tell you, but in case it doesn't work then all you need to remember is the "Sunny 16 Rule". Basically, on a bright day and with the lens aperture set to f16 you set the reciprocal of the film speed.

So with ISO 100 film the reciprocal is 1/100, or 1/100th of a second. Your camera shutter speed dial doesn't have that, but it does have 1/125th which is close enough.

Once you have the exposure set for f16 then if you adjust the aperture you simply adjust the shutter speed to match. So if you decide to set f11 that allows twice as much light onto the film so to compensate you reset the shutter speed to 1/250th of a second to halve the light coming in. As twice the light coming in through the aperture is compensated for by halving the light coming in via the shutter, the exposure remains the same.

Although this works for a sunny day, you just guess based on experience other lighting conditions. So if it's bright but overcast then you can leave things as they are, but if it's dull and overcast allow one extra stop of exposure by opening the aperture by one setting or by doubling the time that the shutter remains open. So from the starting point of f16 at 1/125 (as above), on a dull cloudy day you'd either set f11 OR 1/60. If you set f11 AND 1/60 then you'll be allowing not just twice as much light in but three times as much.

Hope this helps, if so please take a moment to rate my answer. If it's too complicated then please add a comment and I'll re-explain in even simpler terms.

May 18, 2010 | Minolta X-370S 35mm SLR Camera

1 Answer

How do i read a light meter on a Nikon N55? i see the f stop but i dont see the shuter speed, how do i adjust and how do i know its right?


Your camera is either fully automatic or fully manual. In addition it has shutter priority and aperture priority semi-automatic functions. With shutter prior. you pick the shutter speed you prefer and the camera will adjust the aperture. With Aperture prior it works the other way around. The exposure will be always the optimum (decided by the camera program).
You can adjust these automatics with the program dial.

Oct 28, 2009 | Nikon N55 35mm Film Camera

1 Answer

I HAVE THE SAME PROBLEM.


If you're using the kit lens (17-85mm f/4-5.6), the maximum aperture achieveable when fully zoomed out (wide) is f/4 and when fully zoomed in, f/5.6 (that's what the f/4-5.6 stands for). The minimum aperture on this lens is not a problem since you're only making it smaller. i.e., f/22.

Try zooming back and turning the Aperture adjustment dial. You should be able to get f/4.

If you need bigger aperture to get a nice bokeh or to take portraits where the background is blurred while the subject in focus (aka shallow Depth of Field), try lens that are f/3.5 or f/2.8 max. The Canon 50mm f/1.8 is quite affordable (around US$100-120).

Sep 17, 2009 | Canon EOS 40D Digital Camera

1 Answer

Aperture cannot open fully


As you have found out, it is not a lubrication issue. It would seem that your lens has a problem with the linkage arm inside the mount. The arm that extends out of the mount could be bent or misaligned. It would be fixable, but the parts are somewhat delicate. Best to let a good repair person have a look.

Dec 29, 2007 | Nikon 105mm f/2.5 Nikkor Ai-S Lens

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Shutter priority mode?


s I understand it from what I have seen on the Web, the 3000Z can operate in several modes: 1. Fully automatic (camera select both 2. Manual (user sets both aperture and shutter speed). 3. Aperture Priority mode - user sets aperture and camera chooses correct shutter speed to get a good exposure Apparently there is no Shutter Priority mode (user cannot set only the shutter er speed and allow the camera to set the aperature to get a good exposure). This option is available on the Epson 850Z camera and this seems like a silly ommision to make on a "high-end" camera like the 3000Z.

Sep 13, 2005 | Epson PhotoPC 3000Z Digital Camera

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Will a lenses without the A setting on the apeture ring work on a DS


They will - fully open in Av mode, and with any aperture in manual mode - after you allow the Ds through the custom settings menu to use aperture settings different then "A". To choose correct exposure with such a lens in manual mode you can use the AE-button - it stops down the aperture, reads the EV and sets the shutter speed according to the chosen aperture.

Sep 08, 2005 | Pentax *ist DS Digital Camera

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