40D Focusing Screen DIY - Pics inside - Page 3

Mark_Cohran · 17th of December 2007 (Mon)

Quote:

Originally Posted by AperturePriority

Thanks for the tutorial!

How much dust fell into the body cavity during this procedure? Did any stubborn ones end up on the sensor/filter screen?

How would you measure it?

Seriously, it doesn't take much longer to change out the screen than it does to change a lens. Besides, the mirror and the shutter are still covering the sensor during the whoe procedure.

AperturePriority · 17th of December 2007 (Mon)

Quote:

Originally Posted by Mark_Cohran

How would you measure it?

Seriously, it doesn't take much longer to change out the screen than it does to change a lens. Besides, the mirror and the shutter are still covering the sensor during the whoe procedure.

You mean you don't have a "dustometer?

Even thought the mirror and shutter would protect the sensor filter at that point in time, any dust that gets inside the body cavity could eventually wind up on the sensor filter with all the flapping and moving parts that happen when capturing an image.

I guess one should treat the focus screen operation just like a lens change--be in a conducive environment and take precautions.

.

gjl711 · 17th of December 2007 (Mon)

Quote:

Originally Posted by AperturePriority

Thanks for the tutorial!

How much dust fell into the body cavity during this procedure? Did any stubborn ones end up on the sensor/filter screen?

Plus, any dust that does settle in is going to be the kind that the blower blows right out of there.

Mark_Cohran · 17th of December 2007 (Mon)

Quote:

Originally Posted by AperturePriority

You mean you don't have a "dustometer?

Even thought the mirror and shutter would protect the sensor filter at that point in time, any dust that gets inside the body cavity could eventually wind up on the sensor filter with all the flapping and moving parts that happen when capturing an image.

I guess one should treat the focus screen operation just like a lens change--be in a conducive environment and take precautions.

Or, you could just change lenses (or screens) and not worry about it too much.

71sbeetle · 18th of December 2007 (Tue)

or just clean it, I found this is the easiest way:
http://farm3.static.flickr.com/2258/...d11790a1_o.jpg

Raven · 18th of December 2007 (Tue)

Quote:

Originally Posted by 71sbeetle

or just clean it, I found this is the easiest way:
http://farm3.static.flickr.com/2258/...d11790a1_o.jpg

Wouldn't distilled water be preferable?

gjl711 · 18th of December 2007 (Tue)

Quote:

Originally Posted by Raven

Wouldn't distilled water be preferable?

Na, not necessary. The little screen inside the faucet catches all the big stuff anyway.

Familiaphoto · 18th of December 2007 (Tue)

I use carbinated water. I figure the bubbles help loosen the tough stuff.

Sfordphoto · 9th of September 2008 (Tue)

considering getting one myself

i uploaded a picture that i made in photoshop, prob just a rough guestimate of what it looks like through the VF

Domino81 · 9th of September 2008 (Tue)

Good job!

vibin247 · 9th of September 2008 (Tue)

The Katz Eye looks nice, but that's really too expensive unless you're used to using split image. I'm liking my Ef-S screen, and have since I first installed it on the first day I received the 40D. Maybe in the future I'll get the Ef-D, but I'm thinking that's more suited for a full frame body like a 5D.

Edgar in ATL · 10th of September 2008 (Wed)

71SBeetle, thank you for sharing your quick and easy cleaning technique. If the 50D is sealed better like they say, draining is going to be a big issue. Maybe that's another reason to sit out this round.

Sfordphoto · 11th of September 2008 (Thu)

Quote:

Originally Posted by vibin247

The Katz Eye looks nice, but that's really too expensive unless you're used to using split image. I'm liking my Ef-S screen, and have since I first installed it on the first day I received the 40D. Maybe in the future I'll get the Ef-D, but I'm thinking that's more suited for a full frame body like a 5D.

Haha, i was actually thinking the reverse...waiting to get the precision matte screen for when I got a FF cam...but I got the EF-S for my 40D today, and I'm liking it

mizouse · 11th of September 2008 (Thu)

ohh wow, that is simple.

RandyMays · 11th of September 2008 (Thu)

Thanks ! I will be doing this in the near future. Very Nice.

18th of December 2007 (Tue)	#35
71sbeetle Goldmember Join Date: Jan 2007 Location: West Palm Beach, FL Posts: 2,223 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside or just clean it, I found this is the easiest way: http://farm3.static.flickr.com/2258/...d11790a1_o.jpg __________________ gareymartin.com flickr gear list \| CPS. eBay \| POTN VWVortex

18th of December 2007 (Tue)	#38
Familiaphoto Goldmember Join Date: Jan 2007 Location: Chicago, IL Posts: 3,938 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside I use carbinated water. I figure the bubbles help loosen the tough stuff. __________________ Paul Blog \| Gear \| Gallery Bag Reviews: Domke F-3x \| More to come...

9th of September 2008 (Tue)	#39
Sfordphoto Goldmember Join Date: Feb 2008 Posts: 2,560 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside considering getting one myself i uploaded a picture that i made in photoshop, prob just a rough guestimate of what it looks like through the VF __________________ Gear Last edited by Sfordphoto : 11th of September 2008 (Thu) at 19:00.

9th of September 2008 (Tue)	#40
Domino81 Member Join Date: May 2008 Location: Syracuse, NY Posts: 371 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside Good job! __________________ Anthony D. Christiano DominozPhotography Canon 20D/Canon 50D - Sold, and greatly missed.

9th of September 2008 (Tue)	#41
vibin247 Member Join Date: Jun 2008 Location: So. CA Posts: 163	Re: 40D Focusing Screen DIY - Pics inside The Katz Eye looks nice, but that's really too expensive unless you're used to using split image. I'm liking my Ef-S screen, and have since I first installed it on the first day I received the 40D. Maybe in the future I'll get the Ef-D, but I'm thinking that's more suited for a full frame body like a 5D. __________________ Gear List Manual, manual, manual...

10th of September 2008 (Wed)	#42
Edgar in ATL Member Join Date: Aug 2003 Location: Tucker, Georgia Posts: 339	Re: 40D Focusing Screen DIY - Pics inside 71SBeetle, thank you for sharing your quick and easy cleaning technique. If the 50D is sealed better like they say, draining is going to be a big issue. Maybe that's another reason to sit out this round. __________________ Canon 30D User

11th of September 2008 (Thu)	#44
mizouse Member Join Date: Jan 2007 Location: Bay area, CA Posts: 761 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside ohh wow, that is simple. __________________ Canon EOS-1D Mark II N \| EF 70-200mm 1:2.8 L USM \| EF 24-70mm 1:2.8 L USM \| 580ex II

11th of September 2008 (Thu)	#45
RandyMays Member Join Date: Feb 2006 Location: Nebraska Posts: 712 IMAGE EDITING OK	Re: 40D Focusing Screen DIY - Pics inside Thanks ! I will be doing this in the near future. Very Nice. __________________ Canon 40D, 5D MK II Speedlites 430EX & 580EX II Canon 70-200 f/2.8L (Non IS), Canon Extender EF 1.4 X II, Canon 400 f/5.6 L, Canon 100 f/2.8 Macro, Canon 24-70 f/2.8L

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