Homemade 35mm Adapter

[Daniel Moloko]

i dont have the camera anymore, just the ground glass

i think is zenit, only.

Taylor Moore said that was going to put the pic of it on his web site

[Taylor Moore]

Video from Daniel Moloko

Here is Daniels link
www.moorefilms.com/daniel.htm

[Daniel Moloko]

about the test:

it was just for you people to take a look at the ground glass.

and i just put it on the front of the lens i got. it doesnt grain.

anyway, i think its better than the AGUS rotating project cause the fresnel attached just does everything i need - no vignetting.

and if u think it is still graining, i say that it may be graining, but just as much as the spinning frosted CD.

[Filip Kovcin]

daniel,

do yo remember which model was that one you took the ground glass from? i mean not the year, but type... ZENIT E, ZENIT B... or other?

(i do not know if this is clear enough, english is not my native language. to be honest it's my fifth)

filip

[Peter Sciretta]

Am I the only one thinking the non moving GG is great in concept but will not work in execution?

[Danny Tan]

Originally posted by Peter Sciretta : Am I the only one thinking the non moving GG is great in concept but will not work in execution?

i think it would be awesome if it didn't move. then you woudnt need that big ugly cd spindle+motor. but, can some1 take a pic of their ground glass? i used 400 gritt and cannot see clearly through it so i am wondering how the camera would get a clear picture?

[Von Criswell]

Might be of some help:

http://lists.kjsl.com/pipermail/acg/...er/000639.html

Someone talking about ground glass and substitutes he has tried (for making cameras).

Quote:

"I have used frosted acrylic film purchase in a tablet of about 25 sheets from an art supply store. This is intended for Ink Drawing and is frosted on one side only. It produces excellent images. It is available in different thickness. I happened to like 0.005" inch thick. In-fact I will be using the thicker sheets and plain clear-glass to replace the view-screen on a TLR I have been completely restoring. The plain glass will be on the outside to allow durability."


I haven't tried this as I am still waiting for a few parts, however, it may be a viable alternative to the sanding.


Best,
Von

[Louis Feng]

"Am I the only one thinking the non moving GG is great in concept but will not work in execution?"

There are materials beyond ground glass and spinning cds. Don't be hasty, I have something in mind and as far as I can tell, it would be perfect for this application. But it's not something you can find in Walmart.

"i used 400 gritt and cannot see clearly through it"

400 grit? You'll see something better when it's over 1000 grit, and don't use sand papers, they only mess things up. Use these aluminium oxide dusts. But I can tell you that I have tried and it only gives ok result. For high quality, you need something more special.

[Don Berube]

For what it is worth, you may find the following Optics FAQ handy:
http://www.edmundoptics.com/TechSupport/optics.cfm

Optics:
http://www.edmundoptics.com/IOD/Browse.cfm?catid=10

Fresnel Lenses:
http://www.edmundoptics.com/IOD/Disp...Productid=2039

this looks very familiar
http://www.edmundoptics.com/IOD/Disp...productid=1966

T-Mount Adaptors (hmmmm...):
http://www.edmundoptics.com/IOD/Disp...productid=1460

More Lens Adaptors:
http://www.edmundoptics.com/IOD/Disp...productid=1459

Video Lenses?:
http://www.edmundoptics.com/Catalog/Custom/218.cfm

Cool!!!:
http://www.nightowloptics.com/addfra...product=NOCA42

- don

[Daniel Moloko]

Maybe i found a solution.

i was thinking about a MOVING SYSTEM MOTOR that can vibrate something while not spining it. (i have a ground glass thats like a 16x9 screen)

so, have u ever seen the system of a ELETRIC SHAVER?????

the eletric shaver can vibrate doing a moviment from left to right, left right, really fast so that the shavers knifes (lamines? dont know the english words for it) vibrate till then dissapear...thats just what we need, remember???????????


when we are going to try it???

ciao

[Taylor Moore]

Here are Filips Penta Prism Pix

www.moorefilms.com/prism.htm

[Zac Stein]

I don't understand why a concave lense just can't be used.

An optomistrist could make one, the quality would be excellent, it would cause no distortion and of course would totally invert the image. These types of things could be places just behind the lens mount, flip the image and bang directly onto the ground glass. Suddenly you would have a very small device.


Zac

[Daniel Moloko]

why waste time trying to invert the image recorded?

only needs to invert the display image, from the lcd.

anyway, lets try to make a motor function that do not spin like a cd and vibrates a ground glass. thats all


ciao

[Zac Stein]

I for one, would like my image to be coming it correctly from the start to stop be stuffing around with it too much in post, i feel it is important.
Zac

[Don Berube]

I do believe that someone had tried using a shaver motor instead of a rotary motor and it was the noisiest thing to listen to... It was a nice, novel idea by Cosmin (Cosmin35?), but noisy: http://www.dvinfo.net/conf/showthrea...3790#post73790

You'd be better off using a miniature DC brushless motor with the proper tourque rating - it will be probably be almost completely noiseless.

You are making too many compromises by not inverting the image inside the adaptor with a corrective prism (or something like that). If you look at the links I left from Edmund Optics, you'll find the prices are extremely affordable. Read the Optics FAQ if you are unsure of what you need.

- don