Please Help with 35mm adapter - diy

H

helloworld

Active member
Hi guys. I have searched this entire forum for info on building your own 35 adapter. And I am thoroughly confused. I understand the concept, and basically know what is needed, but there are no forum topics that actually give directions on how to build one.

I have a Pentax 35mm screwmount lens, and a cheap video camera. I want to be able to hook up the lens to my camera. Apparently, I need a macro filter, empty space, and a ground glass / or whatever you would like to call it, not necessarily glass.

My camera has a 27mm thread on the lens so I will need to buy a step up (or down, I don't know.)

What kind of gg (or whatever works) should I use, and how can I find one that is in the shape of a filter? That is NUMBER 1 on my list, how to find a filter gg.

What kind of filter works? 10x?

What kind of stuff should I use to space the materials? PVC Pipe? If I do use PVC pipe, should I use super glue or a hot glue gun to glue it all together? Anything else? I DON'T WANT A SPINNING GG EITHER! Mainly because I am too broke to afford a spinning ground glass.

Please, if anyone has any suggestions, instructions, additions, please reply.

Thanks.
 
"but there are no forum topics that actually give directions on how to build one."

This is because they're all different designs. You have to know how to set the gg and calibrate it's distance from the lens, in-order for it function right. It looks easy, but very time and money consuming. Good luck!

Here this is the one you're looking for, but it's a spinning gg. I have made a non spinning adapter for my sony pc101, but didn't take any pictures of it. Just make sure there's no vignetting. Use this as an example or a guide line.

http://www.mediachance.com/dvdlab/dof/index2.htm
 
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