[Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by frame .... Olivier .
firefly at uio.satnet.net
firefly at uio.satnet.net
Wed Dec 10 22:37:10 CST 2008
yes it is exactly what i think to do .... i will test untill 6fps .....
so time is only multiply x4 in shooting time , so a feature 90 minute can
be tape to film done in around one day ....6 hours , adding magazine
change each 11 minutes , so around 8 hours and its done ....for this
moment i have done 4 features films, 3 shorts, 4 trailers , one comercial
spot , all in 24 fps without problem in theater screenings ....
now my problem is i have ghost between takes ,,,,
This is a problem only for telecine after tape to film ... the ghosts
frames are visibles due to the repeat of the pull down 24 to 29,97
telecine ....
so my solution is separate each take with 4 frames of black ..... i have a
negative editor who make me the unions for 300$ for all the feature (it is
easy because all is in order .....
BUT this "problem" help a lot in the panning takes .... not the tipical
flicker ....
the ghost effect is apply to all frames ... due to the 2 fields ....
but ok, for this i want try my system changing at 6fps .....
Best Olivier .
> Yes Oliver, you can put a micro switch on your gears to advance the frames
> on the HD monitor one by one A good fast computer can handle 6 fps.
> Daniel
>
>
> ----- Original Message -----
> From: olivier satnet
> To: Konvas Discussion List
> Sent: Thu, 11 Dec 2008 00:29:35 +0000 (UTC)
> Subject: Re: [Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by
> frame .... Olivier .
>
> 
>
>
>
>
>
>
> NOOOO i am right , i will shoot tape to film
> !
> frame by frame in an Ultra Hight definition ...
> expose 1/6 or 1/4 of second is not a problem for me because i will use RDI
> emulsion (the same used in Arrilazer) ...
> so it is a continuous exposure in a SLOW frame rate
> .... and i syncronise each frame by a video frame using electric interface
> between shutter and computer ...
>
> Now i have f2 1/2 using 250 daylight .... so i can
> still use same emulsion just closing diaph ...and/or ND the lens ...for
> color
> calibration i will test difference between what i have now and difference
> with
> longer exposure ...
>
>
> No problem ... don t worry with exposure techniques
> ... it is my life ... long exposure , shorts etc ....
>
> Olivier .
>
>
>
> ----- Original Message -----
> From:
> H. W. Stone
> To: cinema at konvas.org
> Sent: Wednesday, December 10, 2008 6:53
> PM
> Subject: Re: [Konvas] NOT TIME LAPSE ;
> BUT LOW SPEED :::: camera frame by frame .... Olivier .
>
>
> You're wrong,
> Olivier.
>
> You DO want time lapse-- not just slower frame rates.
>
>
> Why?
>
> As the frame rate decreases the exposure time INCREASES by
> huge amounts, you get blur, exposure bias and mismatch, color shift, and
> you
> find yourself with one quarter of a second exposures requiring eighteen
> stops
> of ND to have that blurry, miscolored image even close to properly
> exposed.
>
> BTW, you may also want a K mod magazine-- one that
> keeps the feed side slack so that the film flow is smooth.
>
>
>
>
> -----Original Message-----
> From: olivier satnet
> <firefly at uio.satnet.net>
> To: Konvas Discussion List
> <cinema at konvas.org>
> Sent: Wed, 10 Dec 2008 6:33 pm
> Subject:
> [Konvas] NOT TIME LAPSE ; BUT LOW SPEED :::: camera frame by frame ....
> Olivier .
>
>
>
> I explain bad myself .. i don t want time lapse ,
> i just want low constant speed with 1000 feets mags on 2C camera so what
> i
> explain before is the BEST way i think , i don t need another MOTOR than
> the
> one 24fps i have !!!
>
>
>
> Hi thanks ... I don t need INTERVALS , only a
> regular syncro 3fps ... BUT i have a good idea ....the ilumination
> come to
> my head !
>
> JUST with Gearing i can Speed down the SAME
> motor .... it is NOT important how much is the FPS ... only the syncro
> "regular speed" ....
> so if i put a gear or Belt wheels i can speed
> down absolutely regular to around 3 or 4 FPS ....
> BINGO !!!! i don t need any other motor !
>
> the baseplate of course i need it !
>
>
> Thanks a lot, Olivier .
>
> -----
> Original Message -----
> From:
> H. W. Stone
>
> To:
> cinema at konvas.org
> Sent:
> Wednesday, December 10, 2008 3:36 PM
> Subject:
> Re: [Konvas] camera frame by frame .... Olivier .
>
>
> About ten years ago I had a
> "time lapse staging solenoid" drive for the Arri 2b/2c camera, and
> it
> worked like a charm, but would be cheaper to build than to buy.
>
> Get
> an Arri or Panavision brand "flat base adapter" for the camera.
> That's made to put the camera motor beside the camera, not under
> it-- but
> then, instead of an Arri motor get an off the shelf "staging
> solenoid"
> used on sorting conveyor belts, and set it up to pull a ratcheted
> drive
> cog=2 0mounted where the motor would normally go. This means you
> can
> program the staging solenoid to trip at given intervals, anywhere
> from
> twenty or so times a second down to once a month. The difference is
> that when it fires it fires fast, and you get a properly exposed,
> advanced, and handled frame.
>
> If you do get a motor from Clive, it
> will work, but staging solenoids are interval set items, the motors
> are
> not.
>
>
>
>
>
>
> -----Original Message-----
> From: olivier satnet <firefly at uio.satnet.net>
> To:
> Konvas Discussion List <cinema at konvas.org>
> Sent: Wed, 10
> Dec 2008 2:00 pm
> Subject: [Konvas] camera frame by frame .... Olivier
> .
>
>
>
> HI guys, for this moment , i own a Arri2C full overhaulhed with a
> 24FPS motor (24fps syncro only) and PL mount ...
> i will receive my 1000 feet magazine for Arri2/Arri3 ....
> so i will have completed my system with own equipment for tape to
> film ....and mount all in a metalic structure with marks for
> 1:85, 16/9, and scope transfer
>
> BUT, i am really interested in a 3 to 4 FPS t ransfer from stills
> ...
> (animation or frame by frame transfer ...) OK it take more time but
> will
> make another option to tranfer video to film for my customers )
>
> SO i need info about a TOBIN motor for low speeds ... frame by frame
> 1 fps 2fps 3 fps .... (like the timelapse ones ...) to mount it on
> my
> Arri2C
> I need so a Inverse Baseplate to plate the motor in a side of the
> camera and NOT below ... for more stability ...
>
> so any Timelapser have info wich motor TOBIN or other will be good
> for this system ???
>
> Bests, Olivier .
>
> -----
> Original Message -----
> From:
> Speedbirdmgh at aol.com
> To:
> cinema at konvas.org
> Sent:
> Tuesday, December 09, 2008 7:23 AM
> Subject:
> Re: [Konvas] funny mount
>
>
>
> "Thee´s a nice zoom lens on EBay
> these days… Do you know the funny kind of lens mount? Item
> 220323145688"
>
> Ole,
>
> Yes, that looks like a 16mm
> "C" mount to me. but there seems to be a sealing ring missing over
> the
> rear element, should'nt affect the image
> though.
>
> I have one identical to
> above but with Arri standard mount. Mine has "minty" glass and has
> been
> serviced.
> Euros 200.00=2 0to
> you!
>
> These are nice lenses if you
> can get a good one. The 35mm version is
> stunning.
>
> Rita (got Uher
> spares if you need any)
>
>
>
> & nbsp;
>
>
>
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