Homemade 35mm Lens Adapter Question

[Piccoevo]

I made a lens adapter, and there in a vignette border. How do I get rid of this? It looks cool, but I don't want all of my videos to have it.

 

[MechSpike]

I hardly know anything about adapters but I believe it has something to do with turning the lens to get rid of that.

 

[PaPa]

without knowing what components you have in your adapter it will be difficult to tel which piece is resulting in the vignetting image.

Do you have a strong enough condensor? Where is it positioned?

 

[Piccoevo]

What is a condenser? Is that the focusing screen? If so, I have it positioned at the only place that it would focus properly.

It is a pvc pipe with a homemade gg. I have a nikon lens. I think that it is a 28mm. I'm not sure. Those are the only components.

 

[skippdill]

I had that same problem, only worst! The fix is a "macro lens".You need to make the focus screen appear larger to the camera.This will eliminate the vignetting.This is my vignetting problem before I added the macro lens: http://www.youtube.com/watch?v=7nJNCSPyFv0. Then I installed a macro lens; http://www.youtube.com/watch?v=yNVbB-AkIlA. Hope this helps.

 

[PaPa]

the macro lens will expand the image, yes, but it will not stop hot spotting.

BAsically the condenser will spread, evenly, light across the ground glass, eliminating the effect of having a brighter center, and darker edges.

 

[Piccoevo]

Where do I get a condenser?

 

[PaPa]

no idea. sorry.

 

[skippdill]

What is diameter of your camera lens?

 

[DREWjoseph82]

So if I already have an achromat installed and Im seeing some hotspotting, should I try to find a condenser to also stick on there? Or is there another way to fix that?