Homemade 35mm Adapter

Jim Lafferty · December 22nd, 2003, 12:27 PM

Charles:

I've got pics up but they're hardly conclusive:

http://ideaspora.net/agus35/front.jpg

http://ideaspora.net/agus35/rear.jpg

http://ideaspora.net/agus35/motor.jpg

http://ideaspora.net/agus35/assembled.jpg

http://ideaspora.net/agus35/motordetail.jpg

http://ideaspora.net/agus35/sanded.jpg

http://ideaspora.net/agus35/finished.jpg

http://ideaspora.net/agus35/finishedmount.jpg

http://ideaspora.net/agus35/finishedrear.jpg

I will have tutorial up by the second week of January.

- jim

Charles King · December 22nd, 2003, 01:58 PM

Thanks Jim. Looks pretty neat :)

Devin Doyle · December 22nd, 2003, 02:34 PM

To those who have completed their systems: what type/power macro lenses do you use? I know some have used the macro portion of their WA adapters, but some must be using regular macro/close-up filters. What power are you using? Can you zoom through these a bit and still pull focus on the projected image? Since this is the only portion of the project that involves purchasing a legitimate piece of equipment I'd like to be well informed about what works. I'd like this thing to be as compact as possible. Thanks!

Jon Kamps · December 22nd, 2003, 03:24 PM

this is just a thought but would the material they use for rear projection TV's work for the static solution? same principle something is projected onto it from the rear and you see it on the other side. might not pass enought light thru though for this application.

Now if anyone has acess to some of this material it might be worth a try

John Gaspain · December 22nd, 2003, 05:12 PM

oh yea, I just had to say:

http://www.ebaumsworld.com/forumfun/positive10.jpg

Daniel Moloko · December 22nd, 2003, 05:39 PM

hello people.!

Vendi, you are wrong about NO GROUND GLASS that provides a good static solution.

I went to a used photo cam store and i found a cam by ZENITH that has a GROUND GLASS with a DIFUSING (fresnel?, im a brazilian, here we call it `lente difusora`)

lens attached behind it!

man, IT REALLY WORKS >expletive removed< GREAT

the GG was made 40 years ago. is perfect, besides only a scratch that i dont notice everytime.

and the grain is very little, it only adds a more film look aspect.

no vignette, no nothing, cause the DIFUSING LENS behind it just EXPAND the lens image to the WHOLE GROUND GLASS!!

if you tell me where to send the video i made (without the things adapted to a box), i will upload right now.

CIAO

Taylor Moore · December 22nd, 2003, 05:42 PM

Hey Daniel,
If you want to send the video to me I can post on my site.
Can you also take photos of your rig and post them.

Just an idea.
taylor@moorefilms.com

Daniel Moloko · December 22nd, 2003, 05:44 PM

...AH, the man who selled me, said that its almost impossible to find one of those these days!!!!
i bought it for 10$ .

NONE of others photo cams ground glasses is the same CLEAN as this one.

Jon Kamps · December 22nd, 2003, 05:55 PM

scratch my rear projection Idea all they use is a fresnal no acutal screen. looking back on what daniel discoverd though maybe we should take a ground glass and a fresnal sandwitched together?

Louis Feng · December 22nd, 2003, 06:08 PM

"the grain is very little, it only adds a more film look aspect."

I said that no GG will work for high quality. You saw the grain, and I know exactly what you saw.

To me it only produces ok results. Try move the camera and have objects move in front of it, also try different light angles. The grain is certainly not film like, the grains are static, makes it look like it's shooting behind a glass (which is true).

If you scale your video to smaller size, this works fine, because the grain will be averaged out and not as visible. But for real things like DVD, or indy film, higher quality is needed. But again, Super fine GG will produce ok results, just not great. If you think it's good enough, then it's good enough.

If you want to produce an upright image, take a look at my design, better yet, improve it.

http://www.dvinfo.net/conf/showthrea...threadid=18690

Daniel Moloko · December 22nd, 2003, 06:14 PM

I said that its very little.

i know that im talking about.

i cant see no grain even when the lens projected image is not covered from light, i dont see any grain at all!!!!!!!!!!!!!!!!!!!!!

i put this on the tv, and no grain, and the test was even without a cover.

i can show you the footage.

by the way, have you ever tried to use a real photocam ground glass?

man, ZENITH is RUSSIAN COMPANY, they know it all.

ciao

Filip Kovcin · December 22nd, 2003, 06:16 PM

<<<-- Originally posted by Daniel Moloko : ...AH, the man who selled me, said that its almost impossible to find one of those these days!!!!
i bought it for 10$ .

NONE of others photo cams ground glasses is the same CLEAN as this one. -->>>

daniel,

i didn't tried it yet, but here in poland you can find TONS of that ZENIT (wthout "H") - if this is the same producer - this was USSR 35mm still camera. Are we are talking about the same thing? What camera (type/model) you have?

if you find it interesting - (the zenit ground glass) - i can check here and there and maybe send it where needed. i'm sure that you can find here zenit in proper working condition - the whole photo camera (WITH the lens) for 15-20$ max (which means that theoretically GG will cost much, much less).

so, if yo buy the whole camera - you can use the GG and experiment with the rest - the lens, maybe also pentaprism - who knows. but i'm not sure about packing and transport fees...
anyhow - at least you can try.
is it possible to find somewhere your tests with that ZENIT GG?

filip

Don Berube · December 22nd, 2003, 06:36 PM

Here are a few Zenit links:

http://www.rugift.com/photocameras/zenit_cameras.htm

http://www.btinternet.com/~stowupland/index.htm

http://www.rus-camera.com/camera.php...t&camera=zenit

Daniel Moloko · December 22nd, 2003, 07:10 PM

it not a new zenith camera.

it was from an old zenith, 50's

the seller told me that those flat ground glass (with no grain) is almost impossible to find these days cause all the cameras are with the same glasses but the flat ground glass is marked with something, like a ball inside it.

ciao

Don Berube · December 22nd, 2003, 07:15 PM

Hi Daniel,

How is it spelled on your camera?

Is it spelled like "Z-E-N-I-T-H"? (with an "H" at the end?)

OR is it spelled like "Z-E-N-I-T"? (with NO "H" at the end?)

- don

December 22nd, 2003, 12:27 PM	#526
Jim Lafferty Major Player Join Date: Dec 2003 Location: Brooklyn, NY Posts: 636	Charles: I've got pics up but they're hardly conclusive: http://ideaspora.net/agus35/front.jpg http://ideaspora.net/agus35/rear.jpg http://ideaspora.net/agus35/motor.jpg http://ideaspora.net/agus35/assembled.jpg http://ideaspora.net/agus35/motordetail.jpg http://ideaspora.net/agus35/sanded.jpg http://ideaspora.net/agus35/finished.jpg http://ideaspora.net/agus35/finishedmount.jpg http://ideaspora.net/agus35/finishedrear.jpg I will have tutorial up by the second week of January. - jim __________________ Realism, anyway, is never exactly the same as reality, and in the cinema it is of necessity faked. -- J-L G

December 22nd, 2003, 01:58 PM	#527
Charles King Major Player Join Date: Mar 2003 Location: sweden Posts: 795	Thanks Jim. Looks pretty neat :) __________________ Charles 'What we perceive to be may not be what we believe to be.'

December 22nd, 2003, 02:34 PM	#528
Devin Doyle Regular Crew Join Date: Jun 2003 Location: Los Angeles, CA Posts: 188	To those who have completed their systems: what type/power macro lenses do you use? I know some have used the macro portion of their WA adapters, but some must be using regular macro/close-up filters. What power are you using? Can you zoom through these a bit and still pull focus on the projected image? Since this is the only portion of the project that involves purchasing a legitimate piece of equipment I'd like to be well informed about what works. I'd like this thing to be as compact as possible. Thanks! __________________ http://devin.par-t-com.net

December 22nd, 2003, 05:12 PM	#530
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	oh yea, I just had to say: http://www.ebaumsworld.com/forumfun/positive10.jpg __________________ The glory of the World passes by.

December 22nd, 2003, 05:39 PM	#531
Daniel Moloko Regular Crew Join Date: Sep 2003 Location: Brazil Posts: 124	gg from zenith 50`s hello people.! Vendi, you are wrong about NO GROUND GLASS that provides a good static solution. I went to a used photo cam store and i found a cam by ZENITH that has a GROUND GLASS with a DIFUSING (fresnel?, im a brazilian, here we call it `lente difusora`) lens attached behind it! man, IT REALLY WORKS >expletive removed< GREAT the GG was made 40 years ago. is perfect, besides only a scratch that i dont notice everytime. and the grain is very little, it only adds a more film look aspect. no vignette, no nothing, cause the DIFUSING LENS behind it just EXPAND the lens image to the WHOLE GROUND GLASS!! if you tell me where to send the video i made (without the things adapted to a box), i will upload right now. CIAO

December 22nd, 2003, 03:24 PM	#529
Jon Kamps Regular Crew Join Date: Sep 2003 Posts: 56	this is just a thought but would the material they use for rear projection TV's work for the static solution? same principle something is projected onto it from the rear and you see it on the other side. might not pass enought light thru though for this application. Now if anyone has acess to some of this material it might be worth a try

December 22nd, 2003, 05:42 PM	#532
Taylor Moore Regular Crew Join Date: Dec 2003 Location: Canada Posts: 94	Hey Daniel, If you want to send the video to me I can post on my site. Can you also take photos of your rig and post them. Just an idea. taylor@moorefilms.com

December 22nd, 2003, 05:44 PM	#533
Daniel Moloko Regular Crew Join Date: Sep 2003 Location: Brazil Posts: 124	ZENITH GROUND GLASS ...AH, the man who selled me, said that its almost impossible to find one of those these days!!!! i bought it for 10$ . NONE of others photo cams ground glasses is the same CLEAN as this one.

December 22nd, 2003, 05:55 PM	#534
Jon Kamps Regular Crew Join Date: Sep 2003 Posts: 56	scratch my rear projection Idea all they use is a fresnal no acutal screen. looking back on what daniel discoverd though maybe we should take a ground glass and a fresnal sandwitched together?

December 22nd, 2003, 06:08 PM	#535
Louis Feng Vendible Book Join Date: Dec 2003 Posts: 59	"the grain is very little, it only adds a more film look aspect." I said that no GG will work for high quality. You saw the grain, and I know exactly what you saw. To me it only produces ok results. Try move the camera and have objects move in front of it, also try different light angles. The grain is certainly not film like, the grains are static, makes it look like it's shooting behind a glass (which is true). If you scale your video to smaller size, this works fine, because the grain will be averaged out and not as visible. But for real things like DVD, or indy film, higher quality is needed. But again, Super fine GG will produce ok results, just not great. If you think it's good enough, then it's good enough. If you want to produce an upright image, take a look at my design, better yet, improve it. http://www.dvinfo.net/conf/showthrea...threadid=18690

December 22nd, 2003, 06:14 PM	#536
Daniel Moloko Regular Crew Join Date: Sep 2003 Location: Brazil Posts: 124	pff I said that its very little. i know that im talking about. i cant see no grain even when the lens projected image is not covered from light, i dont see any grain at all!!!!!!!!!!!!!!!!!!!!! i put this on the tv, and no grain, and the test was even without a cover. i can show you the footage. by the way, have you ever tried to use a real photocam ground glass? man, ZENITH is RUSSIAN COMPANY, they know it all. ciao

December 22nd, 2003, 06:16 PM	#537
Filip Kovcin Major Player Join Date: Dec 2003 Location: warsaw, poland Posts: 440	Re: ZENITH GROUND GLASS <<<-- Originally posted by Daniel Moloko : ...AH, the man who selled me, said that its almost impossible to find one of those these days!!!! i bought it for 10$ . NONE of others photo cams ground glasses is the same CLEAN as this one. -->>> daniel, i didn't tried it yet, but here in poland you can find TONS of that ZENIT (wthout "H") - if this is the same producer - this was USSR 35mm still camera. Are we are talking about the same thing? What camera (type/model) you have? if you find it interesting - (the zenit ground glass) - i can check here and there and maybe send it where needed. i'm sure that you can find here zenit in proper working condition - the whole photo camera (WITH the lens) for 15-20$ max (which means that theoretically GG will cost much, much less). so, if yo buy the whole camera - you can use the GG and experiment with the rest - the lens, maybe also pentaprism - who knows. but i'm not sure about packing and transport fees... anyhow - at least you can try. is it possible to find somewhere your tests with that ZENIT GG? filip

December 22nd, 2003, 06:36 PM	#538
Don Berube Moderator Join Date: Mar 2002 Location: Boston, MA (travel frequently) Posts: 837	Here are a few Zenit links: http://www.rugift.com/photocameras/zenit_cameras.htm http://www.btinternet.com/~stowupland/index.htm http://www.rus-camera.com/camera.php...t&camera=zenit __________________ DONALD BERUBE - noisybrain. Productions, LLC Director Of Photography/ Producer/ Consultant http://noisybrain.com/donbio.html CREATE and NETWORK with http://www.bosfcpug.org and also http://fcpugnetwork.org

December 22nd, 2003, 07:10 PM	#539
Daniel Moloko Regular Crew Join Date: Sep 2003 Location: Brazil Posts: 124	a ball inside it not a new zenith camera. it was from an old zenith, 50's the seller told me that those flat ground glass (with no grain) is almost impossible to find these days cause all the cameras are with the same glasses but the flat ground glass is marked with something, like a ball inside it. ciao

December 22nd, 2003, 07:15 PM	#540
Don Berube Moderator Join Date: Mar 2002 Location: Boston, MA (travel frequently) Posts: 837	Hi Daniel, How is it spelled on your camera? Is it spelled like "Z-E-N-I-T-H"? (with an "H" at the end?) OR is it spelled like "Z-E-N-I-T"? (with NO "H" at the end?) - don __________________ DONALD BERUBE - noisybrain. Productions, LLC Director Of Photography/ Producer/ Consultant http://noisybrain.com/donbio.html CREATE and NETWORK with http://www.bosfcpug.org and also http://fcpugnetwork.org