PentaxForums.com - View Single Post - Bokeh, Specular Highlights, Guess The Lens

carpents · 01-17-2008, 03:47 PM

Originally Posted by d.bradley

Sean,

To get back to your STF lens filter idea, here is the dyxum post. Unfortunately the images have been moved since posting time, but they were promising indeed:

Would it be possible to modify a lens to be a STF lens?: Dyxum forums

Cheers,
D

Absolutely fascinating. Why didn't I think to print a gradient on a transparency? (Yeah, it isn't quite the same as having a variable-density piece of glass.)

I'm curious, though, why mounting it on the front of the lens wouldn't work. That thread talked specifically about opening up the lens and placing the transparency near the aperture blades. (Which I assume your link shows...but sadly it won't appear for me.) Maybe because I'm primarily interested in improving wide open and at most 1 stop down, whereas they were talking about getting bokeh smoothed out at f/8.

01-17-2008, 03:47 PM	#94
carpents Pentaxian Location: West Chester, PA Gallery Photos: 0 Posts: 1,225	Originally Posted by d.bradley Sean, To get back to your STF lens filter idea, here is the dyxum post. Unfortunately the images have been moved since posting time, but they were promising indeed: Would it be possible to modify a lens to be a STF lens?: Dyxum forums Cheers, D Absolutely fascinating. Why didn't I think to print a gradient on a transparency? (Yeah, it isn't quite the same as having a variable-density piece of glass.) I'm curious, though, why mounting it on the front of the lens wouldn't work. That thread talked specifically about opening up the lens and placing the transparency near the aperture blades. (Which I assume your link shows...but sadly it won't appear for me.) Maybe because I'm primarily interested in improving wide open and at most 1 stop down, whereas they were talking about getting bokeh smoothed out at f/8.