| Author | Thread |
|
|
12/11/2004 12:18:32 PM · #1 |
OK, I would rather feel stupid and ask instead of not knowing, so....
I finally broke down and cleaned my (very dirty) sensor with my oh-so-expensive Sensor Brushes. After cleaning I took a shot of the wall, and it looks great, can't see a single thing! BUT, looking through the viewfinder there is still a VERY noticeable speck, and it is NOT on the lens.
Does this mean that the speck is on the mirror? Why doesn't it show up when I take a shot? Can I use the Sensor Brush safely on the mirror if that is where the speck is? |
|
|
|
12/11/2004 12:29:12 PM · #2 |
| A speck on your mirror would not show up in a shot because when you press the shutter, the mirror flips up and out of the line of sight, allowing the light to hit the sensor. I wouldn't sweat a speck on your mirror as long as your shots are clear of boulders and flecks. |
|
|
|
12/11/2004 12:29:18 PM · #3 |
A speck that's in focus when viewed through the viewfinder is on the focusing screen. If it's in very sharp focus, it is on the top of the focusing screen. You will not be able to reach it there.
If, however, it is on the bottom of the screen, you can prolly get at it wit the brush. With the lens removed, and the mirror down (not in cleaning mode) look upward and you can see the bottom of the screen. If you do electe to clean this, be VERY careful not to bump anything, and be very gentle witht he surace of the screen itself. The brush is prolly a good method, since it puts no real force on the screen.
|
|
|
|
12/11/2004 12:36:15 PM · #4 |
Originally posted by kirbic:
A speck that's in focus when viewed through the viewfinder is on the focusing screen. If it's in very sharp focus, it is on the top of the focusing screen. You will not be able to reach it there.
If, however, it is on the bottom of the screen, you can prolly get at it wit the brush. With the lens removed, and the mirror down (not in cleaning mode) look upward and you can see the bottom of the screen. If you do electe to clean this, be VERY careful not to bump anything, and be very gentle witht he surace of the screen itself. The brush is prolly a good method, since it puts no real force on the screen. |
OK thanks. I just tried cleaning the focusing screen with the brush, but the speck is still there. Since it isn't showing up in shots, I guess I just won't worry about it.
If specks ARE on top of the focusing screen, how do you clean them off? Do you have to send it away to Canon for this to be done?
|
|
|
|
12/11/2004 12:42:32 PM · #5 |
If it's in really sharp focus (not blurry at all) then it's actually behind the focusing screen, inbetween the focusing screen and the pentaprism. It's best not to worry about it in this case. I have one and it bothers me at first but I don't even think about it anymore.
|
|
|
|
12/11/2004 12:57:30 PM · #6 |
Leave the speck alone. LOL It's not on your sensor but on the focussing screen as has been mentioned earlier. I wouldn't use the sensor brush on anything else but the sensor. You don't want to contaminate the brushes or wear them out on anything other than the sensor, not worth it .
|
|
|
|
12/11/2004 01:03:36 PM · #7 |
Thanks for the replies.
Yeah, I tend to agree with you all. It does bother me, but I'll just have to ignore it.
On a happier note: I was a little aggravated at having to pay so much for the Sensor brushes, but they did a GREAT job! I am very pleased, now, that I went ahead and got them. |
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 09/13/2025 01:15:04 PM EDT.
