8mm Forum


Post New Topic  Post A Reply
my profile | my password | register | search | faq | register | forum home
  next oldest topic   next newest topic
» 8mm Forum   » 8mm Forum   » Digital Transfer at Projector Gate (Page 2)

 - UBBFriend: Email this page to someone!  
This topic comprises 2 pages: 1  2 
 
Author Topic: Digital Transfer at Projector Gate
Nantawat Kittiwarakul
Expert Film Handler

Posts: 226
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted March 26, 2019 09:56 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
Uh-oh, [Frown]

You sure can insert small-barrel lens into large-barrel lens mount,but not other way round. [Roll Eyes]

Not sure which solution is easier between keeping the projector and trying to find a new smaller barrel lens,or keeping the lens and finding another dual8 projector which accepts larger lens (Sankyo name springs up into my mind now).

--------------------
Just a lone collector from a faraway land...

 |  IP: Logged

John A Reid
Junior
Posts: 22
From: Vancouver, Canada
Registered: Aug 2018


 - posted April 18, 2019 04:02 PM      Profile for John A Reid   Email John A Reid   Send New Private Message       Edit/Delete Post 
I have fitted (Keystone) 16mm Lens as recommended by Janice into my B&H 483 Projector, and captured from Sony TRV 740 with editing software Corel VideoStudio 2019(Trial Version) Of course the 16mm/ movie camera combo is shooting "reversed" - so, using Corel, I was also able to "flip" the movie to the mirror image. Results were still a bit "fuzzy"ie unsharp even with best manual focus and exposure etc which I could obtain. From experience, what is best distance for front of Sony lens to front of Projector Lens??

--------------------
JAR

 |  IP: Logged

Janice Glesser
Film Goddess

Posts: 3318
From: Sunnyvale, CA USA
Registered: Sep 2011


 - posted April 18, 2019 06:21 PM      Profile for Janice Glesser   Email Janice Glesser   Send New Private Message       Edit/Delete Post 
Hi John...Glad you were able to get a 16mm lens to fit your projector. As far as the sharpness of the capture remember you are doing "realtime" capturing. Even shooting off the gate it will never be as sharp as frame by frame scanning. However, I started out doing realtime capturing and got very acceptable results using post capture software enhancements. If Corel Video Studio has sharpening tools you can try to see if that helps. One of the best software for degraining and sharpening software is NeatVideo https://www.neatvideo.com/overview/what-is-it. . NeatVideo has a plugin filter for VirtualDub2 https://sourceforge.net/projects/vdfiltermod/. I recommend using VirtualDub2 (it can reverse your captured footage...adjust the framerate... and you can load other enhancement filters besides NeatVideo. VirtualDub is free, but NeatVideo is not. VirtualDub2 can import multiple video file formats...whereas original VirtualDub will only import AVI files.

There is no set distance paramenters I can give you since it all depends on your projector lens and your camcorder lens. You just need to adjust one or both to get the sharpest image you can. Make sure you are not using digital zoom.

[ April 18, 2019, 07:50 PM: Message edited by: Janice Glesser ]

--------------------
Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

 |  IP: Logged

Nantawat Kittiwarakul
Expert Film Handler

Posts: 226
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted April 18, 2019 08:47 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
With the camera away,can you look into the lens and see the "magnified" image of the film there? Is it sharp/bright/clear to your eyes? If yes,it is the camcorder's settings that is still somewhat "off" I guess. [Wink]

BTW I'm about to do a customer's S8 transfer job tonight or tomorrow. May post the picture of my setup for your reference,too. [Smile]

--------------------
Just a lone collector from a faraway land...

 |  IP: Logged

John A Reid
Junior
Posts: 22
From: Vancouver, Canada
Registered: Aug 2018


 - posted April 30, 2019 01:54 PM      Profile for John A Reid   Email John A Reid   Send New Private Message       Edit/Delete Post 
Tests re-filmng with (a) Sony DCR-TRV 740 and (b) Canon DSLR EOS Rebel T6i show latter is better quality (more control ie ISO, WB, focus, shutter etc).

Used 24v 20W Halogen Reflector Lamp in QLV-1 Holder on B&H 483 Projector.

Avoided "hotspots" (temporarily!) with glass plate (old picture frame) and three sheets of white paper.

Would welcome any suggestions re better diffuser between halogen lamp and gate? (ground glass?)

 -

 -

--------------------
JAR

 |  IP: Logged

Buck Bito
Junior
Posts: 18
From: San Francisco, CA, USA
Registered: Aug 2011


 - posted April 30, 2019 07:54 PM      Profile for Buck Bito   Author's Homepage   Email Buck Bito   Send New Private Message       Edit/Delete Post 
Opal glass is what we used back when we ran film-chains:
https://www.edmundoptics.com/f/opal-diffusing-glass/11914/
It looks like there is now a cheaper option called White Diffusing Glass, but I have no experience with it:
https://www.edmundoptics.com/f/white-diffusing-glass/15084/

--------------------
movettefilm.com

 |  IP: Logged

Janice Glesser
Film Goddess

Posts: 3318
From: Sunnyvale, CA USA
Registered: Sep 2011


 - posted April 30, 2019 09:16 PM      Profile for Janice Glesser   Email Janice Glesser   Send New Private Message       Edit/Delete Post 
I DIY'd a diffuser which I used in my 16mm projector. I got the idea from this YouTube video:

https://youtu.be/z7c9aKA301U

I just insert the diffuser into the front of the lamp.

 -

--------------------
Janice

"I'm having a very good day!"
Richard Dreyfuss - Let It Ride (1989).

 |  IP: Logged

Nantawat Kittiwarakul
Expert Film Handler

Posts: 226
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted April 30, 2019 10:04 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
I uses 2 layers of tracing paper as diffuser. [Big Grin] Works perfect for me.

--------------------
Just a lone collector from a faraway land...

 |  IP: Logged



All times are Central
This topic comprises 2 pages: 1  2 
 
Post New Topic  Post A Reply Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:

Visit www.film-tech.com for free equipment manual downloads. Copyright 2003-2019 Film-Tech Cinema Systems LLC

Powered by Infopop Corporation
UBB.classicTM 6.3.1.2