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Have a few questions about homemade DOF scales

 
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PhillipD



Joined: 06 Dec 2001
Posts: 9

PostPosted: Thu Dec 06, 2001 4:57 pm    Post subject: Reply with quote

I would really like to have a DOF scale for my crown graphic. I've seen Q.T. Luong's page which has an article explaining what to do. Although, I am most definitely stumped as how to approach this. While I am not looking for all the answers, I would just like to know if anyone has done it before and has any pointers to share. Thanks for listening!
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hmartin@tns.net



Joined: 04 Sep 2001
Posts: 83

PostPosted: Fri Dec 07, 2001 3:01 am    Post subject: Reply with quote

Hi
Several years ago there was a web site that one could calculate depth-of-field and hyperfocal distances for medium and large formats. To find the near, far and hyperfocal distance for a specific lens, enter the focal length (mm), aperature (f/number) and the objects distance (whole or decimal number in feet). I searched for it on the internet and it has either moved or is no longer available.
I do have Depth-of-Field tables for the following focal length lenses... 101mm, 135mm and 152mm. Will these help you? Harry
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PhillipD



Joined: 06 Dec 2001
Posts: 9

PostPosted: Fri Dec 07, 2001 3:11 am    Post subject: Reply with quote

definitely, thank you. i ended up making a chart and sticking it on the pop-up hood. i guess what i really wanted was a dof scale next to the distance scale on the bed. for now the chart is more than enough. i'm just the bells and whistles type i suppose. thanks for your reply though.
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wolvertone



Joined: 27 Nov 2001
Posts: 31
Location: Southern USA

PostPosted: Sun Dec 09, 2001 1:42 am    Post subject: Reply with quote

If you're a "bells and whistles kinda guy", what are you doing with a 110% manual camera?

BTW, that dig was in good natured fun.

I have a Crown, Hassey 500C and a Nikon F5. I think they each have their place in application, but I gotta admit; I ONLY grin when I use the Crown!

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PhillipD



Joined: 06 Dec 2001
Posts: 9

PostPosted: Sun Dec 09, 2001 2:52 am    Post subject: Reply with quote

Wolvertone, true. I just thought that it would help ease the transition from using a camera that practically takes the picture for you, to a camera that makes you think before you shoot. This is my first lf camera, and the big negs make me feel like a hero. As far as 'bells and whistles' go,
I like having 4 different viewfinders. Also being able to disassemble the thing is a big plus for me. I hope i have mine long enough to give to my children.
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wolvertone



Joined: 27 Nov 2001
Posts: 31
Location: Southern USA

PostPosted: Sun Dec 09, 2001 9:53 am    Post subject: Reply with quote

"I hope i have mine long enough to give to my children."

If it's taken care of, it'll outlast them!

Happy shooting,

Steve

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Digimassa



Joined: 02 Oct 2001
Posts: 31
Location: austria/europe

PostPosted: Tue Dec 11, 2001 9:52 am    Post subject: Reply with quote

http://members.home.net/gillettm/DOF.html
maybe this is what you looked for.
Regards
Martin
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hmartin@tns.net



Joined: 04 Sep 2001
Posts: 83

PostPosted: Sun Dec 16, 2001 7:51 pm    Post subject: Reply with quote

Yes, thank you! Here is another good site for DOF and focusing when not using the Crown as a normal fixed camera.
The how to of LF focusing & DOF
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