Steve Anderson wrote:Maybe I have this wrong...but here goes...
I am wrong all the time so don't worry run the theory by me
You're having problems focussing the image from the rotating 'block', correct?
This is my speculation on what i am seeing it could also be a sensitivity thing or something else but i am thinking focus ,the distance of the image to the sensor is oscillating as the Block rotates with this experiment .
Perhaps the reason there are no square facsimile machine drums i know of .
But as I think I understand it the block in time will actually be covered in mirrors, correct again?
It looks like a circle in rotation
If you think of just one face of that square mirror rotating the distance to the sensor can be no closer than just out side the corners of the mirror other wise the thing will hit it no rotation ! so you have a set distance here only problem as its mirror turns it gets closer and further to it so its either a focus or you lose sensitivity some how you can be some distance pointing the head amp sensor to the mirrors i can see and hear its picking up the mirror just is that theres nothing discernible ,i know with the cylinder its best close but i have not really tested how far it will work before i loose the image some thing i have to test .
As i tried it just as square block with a picture on it taking the reflection problem away ,best case and it still didn't work so i just trying to work out what are the factors that make the results so different .
If so you'l be focussing on the reflected image which surely be far more distant, I would have thought that this slight difference in sensor-mirror-subject distance as the mirror block rotates would have little impact on the focus.
Thats what i would have thought to .
But distant or close i think filling the mirror area is more important image size ,i will see what my lens idea does /
But again I could have this entirely wrong.
Steve A.
Being wrong and finding out why is better than being wrong and thinking you were right,if its possible i would like to know why .
If the line mirror idea does not work out theres always some acrylic lenses i brought off ebay some time back i could come in handy here as a replacement idea.