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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras
Thread started 08 Mar 2006 (Wednesday) 20:08
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20D & 5D Eyepiece Cover

 
JohnnyBlood
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Joined Jan 2006
Madison, WI
Mar 08, 2006 20:08 |  #1
banned

I'm now through reading the manual to my Canon 20D for the third time. Every time I read it I learn something new. Some how the first two times I completely missed the part about the eyepiece cover, which is supposed to be used in self-timer or remote switch mode because "stray light may enter the eyepiece" and affect the exposure. Do people have any real time experience with this? Is it really that necessary?

Also, as I contemplated having to start using the eyepiece cover, I began to think about the proper workflow needed to take stunning long exposures at night. This is what I have come up with; am I missing anything?

1.) Use a tripod and make sure tripod is steady (obvious)
2.) Attach remote switch (also obvious)
3.) Enable long exposure noise reduction (C.Fn-02 set to 1:On)
4.) Enable mirror lock up (C.Fn-12 set to 1:Enable)
5.) Compose photograph
6.) Set the mode dial to M and set shutter speed to bulb
7.) Set desired aperture
8.) Slide cover over eyepiece
9.) Press shutter button on remote switch once to activate mirror lock up
10.) Press shutter button on remote switch again to take photo

Am I missing any steps?


http://www.flickr.com/​photos/latitudes/external link

Canon 5Dexternal link & 20Dexternal link

Canon EF-S 10-22mm f/3.5-4.5external link
Canon EF 15mm f/2.8external link, 16-35mm f/2.8Lexternal link, 24-105mm f/4Lexternal link, 35mm f/1.4Lexternal link, 50mm f/1.8 IIexternal link, 85mm f/1.8external link, 100mm f/2.8external link
Sigma 30mm f/1.4 EX DCexternal link, 120-300mm f/2.8 APO EX DGexternal link
Other Carl Zeiss Flektogon 35mm f/2.8external link, Asahi Pentax Super Takumar 50mm f/1.4external link, Jupiter9 85mm f/2external link

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cspratt
Senior Member
345 posts
Joined Mar 2004
Victoria, B. C. Canada
Mar 08, 2006 20:10 |  #2

Not much. I have a so-called eyepiece cover for my 10D. Piece of junk. The one for my 10s got lost years ago. Make your own.


Chris. Spratt
Victoria, BC
In the game of life, Mother Nature bats last. Happy ninth inning.

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ScottE
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3,179 posts
Joined Oct 2004
Kelowna, Canada
Mar 08, 2006 20:40 |  #3

How about deciding the length of exposure, looking at a watch and holding the shutter button on the remote down until the time has elapsed? For very long exposures you may want to use the lock switch on the remote to hold the button down so you can leave the remote and come back later when the time has elapsed. This would be done for things like star trails.

Using mirror lock-up for very long exposures where you use bulb setting is kind of redundant because the camera is stationary for so long during the exposure that the small amount of vibration at shutter release does not do any significant damage.




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Quad
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Mar 08, 2006 21:03 |  #4

You forgot step 7b remove eye piece so cover will fit.

It is very poor part. My old A1 had a small lever by the viewfinder and a small shutter closed inside to close it up. That was an elegant implementation. This was the biggest disappointment on my 5D when I first got it.




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ScottE
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Kelowna, Canada
Mar 08, 2006 21:08 |  #5

I find it easier to just hang may hat over the back of the camera.




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jjonsalt
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Central Florida
Mar 08, 2006 21:25 as a reply to ScottE's post |  #6
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DUCT TAPE, don't leave home without it.




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CliveyBoy
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Tauranga, NZ
Mar 09, 2006 00:02 |  #7

Duct tape! So simple.

I found that the neck strap swung in the breeze, producing vibrationmovement that defeated the tripod. So I detached the cover from the strap, and could never find it.

Then I bought the angle finder, and never again use the tripod without it. Hopefully, the angle finder provides a sufficient reduction of light.


Clive, and Great G/D Abbie
50D; 580EXII, 430EXII, 550EX, YN685EX; YN-622C II, YN622C-TX and YN560-TX controllers TOYUG II v5.10 YN622 System Guide (external link)
I tried retiring, but gave it up - it's a dead end

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Mike ­ K
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Joined Apr 2001
San Francisco area
Mar 09, 2006 00:57 |  #8

JohnnyBlood wrote:
Am I missing any steps?

Somewhere between step 5 and 8 I would focus the lens.


Canon 6D, 1DmkII, IR modified 5DII with lots of Canon L, TSE and Zeiss ZE lenses

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ghocking
Senior Member
965 posts
Joined May 2005
Barrow-in-Furness England
Mar 09, 2006 00:58 |  #9

I just cup my hand over the eyepiece. You could get a 1D, the have a built in slider.


Geoff Hocking
G9|20D|40D|50D|5D|7D|1​DMkIIN
60 Macro|50 1.4|100 Macro|17-40 L|24-105 L|100-400 L|Sigma 18-200 OS
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JohnnyBlood
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283 posts
Joined Jan 2006
Madison, WI
Mar 09, 2006 06:55 |  #10
banned

Angle finder?


http://www.flickr.com/​photos/latitudes/external link

Canon 5Dexternal link & 20Dexternal link

Canon EF-S 10-22mm f/3.5-4.5external link
Canon EF 15mm f/2.8external link, 16-35mm f/2.8Lexternal link, 24-105mm f/4Lexternal link, 35mm f/1.4Lexternal link, 50mm f/1.8 IIexternal link, 85mm f/1.8external link, 100mm f/2.8external link
Sigma 30mm f/1.4 EX DCexternal link, 120-300mm f/2.8 APO EX DGexternal link
Other Carl Zeiss Flektogon 35mm f/2.8external link, Asahi Pentax Super Takumar 50mm f/1.4external link, Jupiter9 85mm f/2external link

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Jon
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Bethesda, MD USA
Mar 09, 2006 13:30 |  #11

If you're setting the exposure manually, you don't need to cover the eyepiece. It's only if you try to meter with the eyepiece open to stray light that there's a risk of a messed up exposure.


Jon
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ScottE
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Kelowna, Canada
Mar 09, 2006 18:24 |  #12

That is so obvious I had never thought about it. If the mirror is locked up, it blocks light going down to the image sensor. Thanks for pointing that out. OK, I've learned something for today, I can quit thinking now.




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Jon
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Mar 10, 2006 10:29 as a reply to ScottE's post |  #13

ScottE wrote:
That is so obvious I had never thought about it. If the mirror is locked up, it blocks light going down to the image sensor. Thanks for pointing that out. OK, I've learned something for today, I can quit thinking now.

No, keep thinking. Then you can point out the "obvious" to someone else.


Jon
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PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.
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20D & 5D Eyepiece Cover
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