5 micron WAO at DVinfo.net

Iordanis Chatzicinstantinou · July 25th, 2004, 05:48 AM

Hi all,

i,m new to this forum and i have a question.(dumb maybe for most of you guys).

What is the 5 micron WAO and how do you use on a type D focusing screen?

Thanks in advance

Iordanis

Bob Hart · July 25th, 2004, 05:57 AM

Listen to better advice than mine when it comes along as soon it shall. In meantime my understanding is :-

WAO is white aluminium oxide powder, an abrasive capable of wearing down glass. 5 micron refers to it having been graded into 5 micron size and some smaller particles.

I can't help with the Type D focussing screen but it may be some form of fine groundglass onto which a camera lens image is normally projected for viewing by eye to enable focusing etc., the TTL or through-the-lens viewfinder

Jason Keenan · July 25th, 2004, 08:31 PM

Hey there,

Here's a page with some info on Nikon focusing screens

http://www.nikonlinks.com/unklbil/screens.htm

the Type D is described thus

"Type D: Overall fine-ground matte field."

Others seem to have crosshairs, different focusing points and the like. It would seem it's just a straight focusing screen.

Hope this helps.

Raavin :)

Iordanis Chatzicinstantinou · July 26th, 2004, 12:20 AM

thank you guys!! :)

July 25th, 2004, 05:48 AM	#1
Iordanis Chatzicinstantinou Tourist Join Date: Jul 2004 Location: Athens Greece Posts: 2	5 micron WAO Hi all, i,m new to this forum and i have a question.(dumb maybe for most of you guys). What is the 5 micron WAO and how do you use on a type D focusing screen? Thanks in advance Iordanis

July 25th, 2004, 05:57 AM	#2
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	Listen to better advice than mine when it comes along as soon it shall. In meantime my understanding is :- WAO is white aluminium oxide powder, an abrasive capable of wearing down glass. 5 micron refers to it having been graded into 5 micron size and some smaller particles. I can't help with the Type D focussing screen but it may be some form of fine groundglass onto which a camera lens image is normally projected for viewing by eye to enable focusing etc., the TTL or through-the-lens viewfinder

July 25th, 2004, 08:31 PM	#3
Jason Keenan New Boot Join Date: Jul 2004 Posts: 19	Hey there, Here's a page with some info on Nikon focusing screens http://www.nikonlinks.com/unklbil/screens.htm the Type D is described thus "Type D: Overall fine-ground matte field." Others seem to have crosshairs, different focusing points and the like. It would seem it's just a straight focusing screen. Hope this helps. Raavin :)

July 26th, 2004, 12:20 AM	#4
Iordanis Chatzicinstantinou Tourist Join Date: Jul 2004 Location: Athens Greece Posts: 2	thank you guys!! :)