This is topic Bolex P3 viewfinder in forum 8mm Forum at 8mm Forum.


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Posted by Luigi Castellitto (Member # 3759) on August 29, 2013, 06:20 PM:
 
The viewfinder of the Bolex P3 does not change brightness even if you operate on the shuttuer or on the diaphragm?
Thank you!
 
Posted by Luigi Castellitto (Member # 3759) on August 30, 2013, 07:41 AM:
 
Come on, no one has a P3? [Smile] I know that on this forum are well informed about the model line-P3! [Smile]
 
Posted by Glenn Brady (Member # 715) on August 30, 2013, 08:21 AM:
 
The beamsplitter of the reflex viewfinder of the P3 is located forward of the iris and shutter.
 
Posted by Bryan Chernick (Member # 1998) on August 30, 2013, 10:06 AM:
 
I've got a P1 and P2, like Glenn said you're view is in front of the iris so you won't see a change. I think they did this to give a bright view in the viewfinder. I also have a Bolex H8 Rex 4. The lenses can be removed so the beamsplitter is behind the iris. This makes for less light going to the viewfinder. Most of the time it's very hard to see what you're filming.

One thing Bolex did to compensate for this was to make lenses with two levers to adjust the iris. One locks into place where you want the iris set. The other opens the iris fully to focus then you can swing it right back to where you had it locked to make your shot.
 
Posted by Luigi Castellitto (Member # 3759) on August 30, 2013, 12:49 PM:
 
Got it, thanks guys. Indeed, if the viewfinder was behind the diaphragm would always be dark, especially indoors.
Great though the method you describe, Bryan, was on the H series?
 
Posted by Glenn Brady (Member # 715) on August 30, 2013, 01:53 PM:
 
On the H Reflex series the beamsplitter is behind the iris (because the cameras accept interchangeable lenses) and in front of the shutter.
 
Posted by Luigi Castellitto (Member # 3759) on August 30, 2013, 02:04 PM:
 
So the H series does not have the lightmeter and the needle? I did not know, useful to know!
 
Posted by Glenn Brady (Member # 715) on August 30, 2013, 02:50 PM:
 
I think you'll find further questions you may have answered at http://www.bolexcollector.com/.
 
Posted by Luigi Castellitto (Member # 3759) on August 31, 2013, 08:34 AM:
 
I knew the site, but the detail of the position of the beamsplitter in the P series was not mentioned.
Thank you all!
 


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