35mm Adapter Static Aldu35 - Page 36 at DVinfo.net

Go Back   DV Info Net > Special Interest Areas > Alternative Imaging Methods

Alternative Imaging Methods
DV Info Net is the birthplace of all 35mm adapters.


Reply
 
Thread Tools Search this Thread
Old March 11th, 2004, 02:54 AM   #526
Major Player
 
Join Date: Dec 2003
Location: Anaheim, CA
Posts: 445
Filip-
Send me your email and I'll send you the drawing of the design. In the mean time...
A B C
35mm Lens> // ||
// ||
\\ <video camera (E)
\\
D

One front projection idea I had was to use a 35mm lens (A) > forward slainted 45 degree two way mirror (B) > white grainless projection surface (C) > directly below the first two way mirror theres another mirror. This one is a regular one way mirror mounted at a 45mm rearward slating position (D) > video camera (E).
Brett Erskine is offline   Reply With Quote
Old March 11th, 2004, 02:56 AM   #527
Major Player
 
Join Date: Dec 2003
Location: Anaheim, CA
Posts: 445
damn that didnt line up too good. Oh well. Send the email.
Brett Erskine is offline   Reply With Quote
Old March 11th, 2004, 01:00 PM   #528
Major Player
 
Join Date: Aug 2003
Location: Poplarville, MS
Posts: 453
I found a place nearby that sells a Hoya 58mm Closeup Filter Set, that comes with 3 lenses. I think the lenses are +1, +2 & +4 or something. Anyhow, I have heard the hoya filters mentioned in some of you guys' mini35 devices, so I wanted to get some feedback before I purchase them. I well know that an achromatic/2 element filter would be better as far as the color separation goes, but (and maybe the guys out there with a Canon GL2 can tell me) would this kit be acceptable? Also, what about when they are stacked? Does this introduce vignetting or cause chromatic abbheration to really show up?

Thanks for your help!
Frank Ladner is offline   Reply With Quote
Old March 11th, 2004, 04:28 PM   #529
Regular Crew
 
Join Date: Feb 2004
Location: Austin, TX
Posts: 182
code and /code

by the way - if you wrap up your ascii art in a
code tag (in square brackets) and end it with a /code tag in square brackets, things should line up as you expect. (testing now...)

See this page http://www.dvinfo.net/conf/misc.php?action=bbcode for some info on codes.

Code:
    _    ____   ____ ___ ___
   / \  / ___| / ___|_ _|_ _|
  / _ \ \___ \| |    | | | |
 / ___ \ ___) | |___ | | | |
/_/   \_\____/ \____|___|___|

    _    ____ _____
   / \  |  _ \_   _|
  / _ \ | |_) || |
 / ___ \|  _ < | |
/_/   \_\_| \_\|_|
Jonathon Wilson is offline   Reply With Quote
Old March 11th, 2004, 10:59 PM   #530
Major Player
 
Join Date: Dec 2003
Location: LA, California, USA
Posts: 224
My optics knowledge comes from what little I remember of grade 10 science; Can't a dove prism be used to properly orient the image?
http://electron9.phys.utk.edu/optics421/modules/m2/prisms.htm
Ari Shomair is offline   Reply With Quote
Old March 12th, 2004, 01:33 AM   #531
Inner Circle
 
Join Date: Feb 2004
Location: switzerland
Posts: 2,131
Yes you are right , there are many prism that could help to have the picture in the correct position.
Unfortunately we are not at the stage where we are looking on how we could do thing (theory), but more in a stage on how we can build it. and unfortunately prism you can find easily and affordably are usually to small for a 24x36mm picture.
If you know a good source for big cheap prism...
Giroud Francois is offline   Reply With Quote
Old March 12th, 2004, 02:13 AM   #532
Major Player
 
Join Date: Oct 2003
Location: WA-USA
Posts: 371
uhhh....people, a X/Y switchable LCD is only about $120, and its easier & better image quality, I dont know why you guys are trying so hard with prisms & mirrors for this magic trick when an LCD is the best answer.

gas
__________________
The glory of the World passes by.
John Gaspain is offline   Reply With Quote
Old March 12th, 2004, 03:39 AM   #533
Regular Crew
 
Join Date: Mar 2004
Location: Milan-Berlin-Paris-Bruxelles
Posts: 26
I agree

I use lcd monitor is just fine
Prism éand other hare to difficult to calibrate for homemade kit

ans light loss to

i think movietube
www.movietube.com/
dont use prisme but only aadiitional viewier
Paolo Rudelli is offline   Reply With Quote
Old March 12th, 2004, 07:26 AM   #534
Regular Crew
 
Join Date: Feb 2004
Location: Sylva, North Carolina
Posts: 153
<<<-- Originally posted by John Gaspain : uhhh....people, a X/Y switchable LCD is only about $120, and its easier & better image quality, I dont know why you guys are trying so hard with prisms & mirrors for this magic trick when an LCD is the best answer.

gas -->>>


John,
Where can someone find this X/Y switchable LCD monitor for $120? Can you or someone provide a link to a source?

To all,

The LCD monitor is the best solution for dealing with the inverted image (for now) but I believe an optical solution is out there. Please don't stop the flow of creative ideas. It's my guess that many of them are untested and so they shouldn't be so quickly and easily dismissed. I agree that it would be fool hardy to run out and buy a $500 prism just to test a hunch. (my pockets aren't that deep) But there's bound to be someone out there who happens to have access to one. What we need is more testing and more sharing of results. It would be nice to know exactly how many functioning adapters are out there and what those builders did to correct the common issues with this type of adapter. Hotspotting, vignetting, inverted image etc. I'm new to this forum so I'm not too savy on what is possible but could we create a survey to see who's building what. It would be nice to know which cameras are being used.
WIBN, Joe

on another note:
Has anyone ordered 5 micron grit from www.gotgrit.com yet? I just ordered some two days ago. I now believe Frank was originally right about the gray 1000 grit AO from Rock Shed. I too am noticing some varient scratches that could only be caused by a large particle. (I was being careful, following my own sugestions posted here) I don't think it is anything against Rock Shed but I now understand that the blue AO (I think that is what they call the gray colored stuff) is not consistant enough for optical work and that you need white AO. Got Grit is entirely based on telescope making supplies and only deals in white AO. After thinking about it for a minute, it makes sense that someone wanting to polish stones in an agitator isn't going to be as picky about how refined their grit is. So from here on, I think we should advise all to use only white AO for glass grinding. I'm still looking for a source for 3 micron AO. anybody have a source?
Joe Holt is offline   Reply With Quote
Old March 12th, 2004, 07:39 AM   #535
Regular Crew
 
Join Date: Mar 2004
Location: Milan-Berlin-Paris-Bruxelles
Posts: 26
lcd

the link
http://www.portablemp3playerstore.com/stuff_you_need/special/th-5688.htm

120$ 5"6 TFT monitor

I find in europe 7" monitor for 120€

I dont think stop creativiti
but for me te mini35 it to make movie is not for losing 2 year to bild up .
If some can do whit prism etc etc...
But me for now i already use for real.

PS i even use whit Super8 camera and videotap is fantastic....

Link for AO grit 1000 in canada (only french english page is not working
http://www.aei.ca/~astronat/equinox/listeprix.htm
Paolo Rudelli is offline   Reply With Quote
Old March 12th, 2004, 09:35 AM   #536
Major Player
 
Join Date: Dec 2003
Location: Brooklyn, NY
Posts: 636
Quote:
John,
Where can someone find this X/Y switchable LCD monitor for $120? Can you or someone provide a link to a source?
I'll second that loudly -- care to show us a link John? Please make sure it isn't 7" -- I'm looking for something in the 3-4" range...

- jim
__________________
Realism, anyway, is never exactly the same as reality, and in the cinema it is of necessity faked. -- J-L G
Jim Lafferty is offline   Reply With Quote
Old March 12th, 2004, 10:18 AM   #537
Regular Crew
 
Join Date: Jan 2004
Location: Montreal Canada
Posts: 86
Paolo Rudelli

i think movietube
www.movietube.com/
dont use prisme but only aadiitional viewier

I have take a look at this movi tube, and I am almost shure that they use a 45 degre prism.

Alain
__________________
http://www.kheops-tech.com/~ad3d/
Alain Dumais is offline   Reply With Quote
Old March 12th, 2004, 10:23 AM   #538
Trustee
 
Join Date: Sep 2003
Posts: 1,435
Alain,

I'm working on your adapter for HD cam (see here) and have a question:

- Have you tried to use Nikon focusing screen as Ground Glass?

I found that the focusing screen (I use type D, plain matte) has a very visible grain. Do you think the grain can be eliminated by further refining the matte with the aluminum oxide powder? (I do have some on order, but they haven't shipped it yet.)

Thanks!
Alex Raskin is offline   Reply With Quote
Old March 12th, 2004, 10:51 AM   #539
Regular Crew
 
Join Date: Jan 2004
Location: Montreal Canada
Posts: 86
Alex Raskin

I haven't seen this focusing screen but I am pretty shure you can.

All the focusing screen I have seen even Hassel blad are not fine enought for that.

Alain
__________________
http://www.kheops-tech.com/~ad3d/
Alain Dumais is offline   Reply With Quote
Old March 12th, 2004, 11:55 AM   #540
Regular Crew
 
Join Date: Mar 2004
Location: Milan-Berlin-Paris-Bruxelles
Posts: 26
Nikon

Alex ,

i work whit a Nikon type D focusing screen

http://www.sinedie.org/lickthetoad/p...ni35/index.htm

http://www.sinedie.org/lickthetoad/p...ni35/photo.htm

the grain is visible under DV camera so i think whil be even more under HD and also the screen is 36mmx24mm not 4/3 ratio

i think the materiel is plastic or somthing else so ginting whit AO i don't know if is working

Paolo
Paolo Rudelli is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Special Interest Areas > Alternative Imaging Methods

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:03 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network