Graflex.org Forum Index Graflex.org
Get help with your Graflex questions here
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Best aperture for Wollensak 90mm f6.8 (W.A.)

 
Post new topic   Reply to topic    Graflex.org Forum Index -> Lenses Help
View previous topic :: View next topic  
Author Message
FixerFiend



Joined: 05 Sep 2003
Posts: 42
Location: Washington D.C.

PostPosted: Tue Jan 06, 2004 5:59 pm    Post subject: Reply with quote

Can anyone with a working relationship with this lens give me a few pointers. I plan to use this on my 4x5 Pacemaker. What is the best aperture for this lens and how does ir stack up against the other wide angles for this format? I'm new to med. & L.F. and looking forward to building up my system. I also have a 2x3 that came with a 8in. wollensak Tele-raptar & 101mm Ektar. Thanks for all the knowledge on this site.

_________________
BTM
Back to top
View user's profile Send private message Send e-mail
Henry



Joined: 09 May 2001
Posts: 1646
Location: Allentown, Pennsylvania

PostPosted: Tue Jan 06, 2004 7:03 pm    Post subject: Reply with quote

Quoting from "Graphic Graflex Photography" discussion of the 90mm and 65mm W.A. Optar (10th ed., p. 31): "Like most lenses of this type, maximum sharpness is attained at f/11 and smaller apertures." There is also a warning about vignetting if used at other than the normally centered position. I've found both observations to be true with the 65mm Optar on the Century.

[ This Message was edited by: Henry on 2004-01-06 11:07 ]
Back to top
View user's profile Send private message
Dave



Joined: 05 Dec 2003
Posts: 78
Location: Canada

PostPosted: Tue Jan 06, 2004 10:28 pm    Post subject: Reply with quote

I guess 'lenses of this type' would include Schneider's Angulon, which has all the same properties (same aperture, limited coverage, small working aperture).
Back to top
View user's profile Send private message
Les



Joined: 09 May 2001
Posts: 2682
Location: Detroit, MI

PostPosted: Tue Jan 06, 2004 11:07 pm    Post subject: Reply with quote

I have the Angulon and found that the lens can handle nearly all of the rise that a Pace Crown can give. Now the corners may be a bit soft, but in my case it's either grass or mud in those corners, rarely the main subject.
Back to top
View user's profile Send private message
Jonathan Bundick



Joined: 06 Apr 2002
Posts: 20
Location: Texas

PostPosted: Wed Jan 14, 2004 12:32 am    Post subject: Reply with quote

f/22 or f/32 will give the sharpest results. In 4x5, you only get about 1/4in. of rise before the corners start to go.

You can get enough tilt for most landscapes, unless you want the camera right on the ground and need everthing from inches to miles away in focus. Pushing the limits of movement will lead to soft corners at the least, and black corners at it's worst.

Used within it's limits, it is a good lens and yields acceptable results, especially for the money.
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Graflex.org Forum Index -> Lenses Help All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group