Question about Canon EOS-20D Digital Camera with 17-85mm Lens

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Dead Pixels??? I am an amateur photographer and I do not know too much yet so bare with me. I have been taking pictures of the moon lately to get the feel for my new camera (Canon EOS 20D) and I have noticed something kinda strange. When I?m looking at the pictures on my computer, and I zoom in past 100% on the right hand side there is this tiny white spec and blue dot. When I zoom in more the white spec is shaped like a star of five squares. It seems to be on all of my photographs (it?s in the same spot every time), or at least the ones I shot in low light conditions. I have heard of some people talking about, ?dead pixels? and was thinking maybe that?s what it is (I was not shooting in RAW.) Or maybe there is some dust or something on my sensor. Anyone else seen this?

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It's a hot/stuck pixel. It's not dust. If it's always the same shade of white and on every shot it's stuck. If it's some shade from grey to white and only shows up on longer exposures, it's hot. Can't be fixed. Canon should be able to map it out, but I'm not sure of their warranty policy. Sometimes warranties on sensors specify a maximum number of defects. Very few, if any, warranty a sensor to be perfect, with zero dead, stuck or hot pixels. If you don't specifically look for it in a print, it's unlikely that you (or anyone else) will notice it.

Posted on Sep 14, 2005

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How to shoot pictures of the moon


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How to photograph the supermoon: an easy way to shoot moon ...

www.techradar.com/.../photography.../how-to-photograph-the-moon-an-easy-way-to-...
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4 days ago - Taking pictures of the moon is one of the more popular subjects in night photography - but it's also quite tricky to get right. Use this tried and ...

How to Photograph the Moon - Photography Life

https://photographylife.com > Photography Tutorials
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Jun 11, 2015 - Aperture: Set your aperture to f/11. Shutter Speed: Set your shutter speed to 1/125 on cameras with base ISO 100, and to 1/250 on Nikon DSLRs with base ISO 200. Lens Focus: Set your lens to manual focus (either through a switch on the lens or on the camera) and set your focus to infinity.

How To Take Stunning Pictures Of The (Super) Moon :: Digital Photo ...

www.digital-photo-secrets.com/tip/779/how-to-take-stunning-pictures-of-the-moon/
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Aug 7, 2014 - Start with ISO 200, f11 aperture and 1/125 second. Try a test shot. Then use trial and error by changing the shutter speed until you can find the best exposure that works for your composition without overexposing the moon. Turn off auto focus.

How-To: Photograph The Moon ' Popular Photography

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Nov 15, 2016 | Cameras

Tip

How to take best pictures.


1. The best pictures can be taken with a tripod and using self timer or the remote control of the camera.

2. Some people think that the best picture can be taken with suddenly pressing the shutter. In reality it is not true. So the best pictures can only be taken with two steps. First, pressing half way and without not shaking the camera continuing on pressing the shutter. At last the camera takes picture. But a good photographer does not know the moment of taking the picture. He/She only knows and concentrates on not shaking the camera.

3. Best pictures can only be taken with an artistic point of view. Best photographers place the subjects to the most estetic point and the best estetic position.

4. Best pictures can only be taken without using the flash.

5. Best pictures can only be taken at the Golden Hour time. Golden Hour is the time period, starting with the Sun rise and ends after an hour. Second Golden Hour starts before an hour of Sun Set and ends with the Sun Set.

6. Best pictures can only be taken by a best photographer so you can never see a best photographer's portrait as a best picture.

7. Best pictures can not be taken with a most expensive camera but can be taken by a best working amateur photographer.

8. Best pictures can not be taken by professionals but can be taken by the professional amateurs.

9. Best pictures can only be taken with the camera which has a greater sensor size.

10. Best pictures can only be taken with a natural view of the objects.

on Apr 21, 2010 | Cameras

2 Answers

I would like to be able to take a good picture of a full moon on a clear night.


You're going to face two separate problems here.

One, the moon occupies a rather small portion of the night sky. Even fully zoomed in, the moon is going to be not much more than a bright spot in the sky.

Two, the camera is designed to assume that almost every scene is an average brightness. Given how much of the scene is a black sky, the camera will attempt to render the sky as average (what photographers call a "medium gray"). This will result in a picture with a gray sky and a featureless white blob for the moon.

If you think about it, the full moon is nothing more than a really big rock under a midday sun. Thus what you want is the same exposure as when taking a picture on a clear sunny day. Unfortunately the camera is going to be fooled by all that dark sky and try to compensate for it. What you really need is to be able to bypass the camera's light meter and set the proper exposure yourself. The C195, unlike more sophisticated cameras, doesn't allow you to do so. Sorry, but that's just the way it is.

Mar 24, 2013 | Kodak C195 Digital Camera

1 Answer

Can I take clear good pictures of a full moon on a clear night?


You're going to face two separate problems here.

One, the moon occupies a rather small portion of the night sky. Even fully zoomed in, the moon is going to be not much more than a bright spot in the sky.

Two, the camera is designed to assume that almost every scene is an average brightness. Given how much of the scene is a black sky, the camera will attempt to render the sky as average (what photographers call a "medium gray"). This will result in a picture with a gray sky and a featureless white blob for the moon.

If you think about it, the full moon is nothing more than a really big rock under a midday sun. Thus what you want is the same exposure as when taking a picture on a clear sunny day. Unfortunately the camera is going to be fooled by all that dark sky and try to compensate for it. What you really need is to be able to bypass the camera's light meter and set the proper exposure yourself. The C195, unlike more sophisticated cameras, doesn't allow you to do so. Sorry, but that's just the way it is.

Mar 24, 2013 | Kodak Easyshare C195 14 Mega Pixels...

1 Answer

Red line on the display and shows up on photos


if this red line is still on the picture when you open in the computer, I`m a fried you will need a new CCD. If the pictures are ok in the computer is probable some wire that connect the LCD are interrupted , or the LCD have some dead pixels.

Jan 26, 2010 | Nikon Coolpix S550 10 Megapixel Digital...

1 Answer

My Pictures come out way too light or way too dark, HELP!


Check your ISO, your white balance, and whether you have set exposure compensation by mistake.

Apr 03, 2017 | Nikon D40x Digital Camera

2 Answers

Dead Pixels


You cannot fix the bad pixels, it simply means your screen has been damaged OR there was a manufacturing problem (faulty hardware).

The phone should still be under warranty, you need to send it in to be repaired.

Post back for further help (Additional info). Thank you for choosing Fixya!

Mar 29, 2009 | Samsung Glyde SCH-u940 Cellular Phone

1 Answer

Optoma EP716 Projector


Hi,

Make sure that the resolution shown by the projector matches with that of the computer resolution. Many projectors does it automatically.
But if there exists a problem in resolution matching, there is a chance of getting partial picture. So better check that the resolution shown by the projector matches with that of the computer.

Also, the pixel may be degraded due to,
  • Their susceptibility to heat; the organic compounds used in LCD filters - in particular the blue - can be broken down by excess heat, resulting in a degradation of image quality.

  • "Dead Pixels"; pixels can become permanently on or permanently off, and while this is barely noticeable with one dead pixel, the presence of multiple dead pixels can be a irritation.
The only way to fix the problem is to replace the 3 LCD panels which, if you could get the part would cost you more than a new one.
LCDs are really difficult to make so lots of them do actually get passed with dead pixels on them.

But i suggest you to get some advice from the service center too.....
Hope my info solves your problem.
Thanx for using fixya.

Oct 01, 2008 | Optoma H30 Multimedia Projector

1 Answer

Spot metering on the Epson 3000z


The spot meter area is small because I have photographed 2 people side by side many times, focused on ones chest then found that the "spot" had slipped into the little space between them, the bad focus not really showing up when I checked the LCD. (My eyes are old and so are my glasses.) Got home and found useless pictures. Sometimes I was outdoors in the sun and couldnt check the LCD. Some of the threads say the focus spot is "off center" with no acccurate way of finding it when using the viewfinder. I take some beautiful, wonderful pictures but these errors really tear me up. I've got to get the LCD box viewer with the 2x lens viewer I guess. All those years as a 35mm Canon F1 user I would long for a spot meter almost daily. Now I see that a matrix meter AND a spot is the real choice. I hope eventually to learn to outwit my 3000Z because it does give me such excellent pictures. Sometimes there is noise on a face, sometimes it is the focus and at functions it is so embarassing to ask a principal subject to wait because the *** or ***H procedures take so long. A wedding, other than the reception, would be near impossible in *** or higher. Good Luck, Dav.

Sep 13, 2005 | Epson PhotoPC 3000Z Digital Camera

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