8mm Forum: Beaulieu shutter

This is topic Beaulieu shutter in forum 8mm Forum at 8mm Forum.

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Posted by John Fields Smith (Member # 5879) on October 02, 2017, 04:18 PM:

Hello,the shutter can be set for three or two blades,when on the two blade setting you can do video transfer and you get 16% more light,so why should you put it back to the three blade setting?.By leaving it on the two blade setting and getting 16% more light will i do harm to my Beaulieu 708 ?regards John.

Posted by Andrew Woodcock (Member # 3260) on October 02, 2017, 05:00 PM:

None John.

Three blade facility is only ever really NEEDED for projecting 18fps home produced amateur movies as otherwise you will be able to see considerable levels of flicker to the naked eye, despite having the fastest pull down claw of any machine, exposing the frame for longer to the lamp, hence the unbelievable brightness levels from the otherwise modest lamp power and also lack of any flicker to the naked eye on 24fps.

I take lots of video footage of my machine in run and even with the digi camera set to 25fps and the PJ running at 24fps fixed, you never see any flicker and hardly any strobing effect even on camera. None at all if you match the PJ to 25fps on two bladed shutter mode. [Wink]

Posted by Dominique De Bast (Member # 3798) on October 02, 2017, 05:00 PM:

Hello John. The two blades position is used at 24 fps. At 18 fps, you will get a flickering picture. You will not harm your projector by using it with two blades at 18 fps, only your eyes.

Posted by Andrew Woodcock (Member # 3260) on October 02, 2017, 05:09 PM:

Snap! [Big Grin]

Posted by John Fields Smith (Member # 5879) on October 02, 2017, 05:11 PM:

Thanks Andrew and Dominique i feel great now,many thanks John. [Smile]

Posted by Andrew Woodcock (Member # 3260) on October 02, 2017, 05:12 PM:

And so you should John, so you should! [Big Grin]

Posted by John Fields Smith (Member # 5879) on October 02, 2017, 05:14 PM:

Haaaaaaaaaaaaaa,cheers Andrew.

Posted by Andrew Woodcock (Member # 3260) on October 02, 2017, 05:15 PM:

[Smile]

Beaulieu forever,..and then a day longer!

Tonight, viewing Never Say Never Again,..su..flaming,..purb!!

Posted by John Fields Smith (Member # 5879) on October 02, 2017, 05:51 PM:

Andrew,your Beaulieu looks great with the big reels,i have two 15 inch black Beaulieu reels and one 14 inch black Beaulieu reel,your silver ones look great,i hope i can get some silver ones like yours,but i don,t think it will be easy,they are hard to find.regards John.

Posted by Andrew Woodcock (Member # 3260) on October 02, 2017, 05:56 PM:

I know, i keep a tight hold of each and every one of them John! [Big Grin]

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