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 

Lens limitation and lens board for Pacemaker Crown Graphic 3

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



Joined: 29 May 2002
Posts: 1
Location: Bay Area

PostPosted: Thu May 30, 2002 1:02 am    Post subject: Reply with quote

I searched this web site and photo.net, but I couldn't find the lens limitations for wide angle and telephoto. Do I calculate lens limitation for telephoto based on bellow extension? In this case, it's like around 300mm lens for telephoto. Is this correct? I've a Pacemaker Crown Graphic 3x4 with knob 2x3 roll film back. Also, can Pacemaker 2x3 lens boards fit Pacemaker Crown Graphic 3x4? I've checked Midwest Photo Exchange and Brooklyn Camera, but I didn't find any used lens board for 3x4. I couldn't find Columbus Camera online at all. Does this mean I've to make my own lens board for 3x4? Thanks.
Back to top
View user's profile Send private message Send e-mail
Les



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

PostPosted: Thu May 30, 2002 1:46 am    Post subject: Reply with quote

According to Graflex (graphic Graflex Photography 11th ed) the minimum flange focus is 1 5/8" for a 3x4 crown. which means you can focus a 65mm lens at infinity.

the longest lens Graflex suggests for the 3x4 is the 10" Tele Optar. This is a true telephoto meaning when focused at infinity the bellows draw is about 7"

If you used a normal 10" lens it would focus at infinity with 10" of bellows draw and you would have any close focus as the 3x4 has only 11 1/4" of bellows.

I'm afraid your stuck looking for used 3x4 boards. Each format used a different size and since 3x4 is a dead format, nobody is willing to reproduce new boards for it.
Back to top
View user's profile Send private message
45PSS



Joined: 28 Sep 2001
Posts: 4081
Location: Mid Peninsula, Ca.

PostPosted: Fri May 31, 2002 1:49 am    Post subject: Reply with quote

Columbus Camera Group is NOT a single store but a grouping of several in Columbus, Ohio.
This link to an auction of theirs has a means to contact them.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1356834374

_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.
Back to top
View user's profile Send private message Visit poster's website
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