HELP on building Optical Viewfinder for a 35mm adapter

Forrest Schultz · March 24th, 2006, 09:19 AM

Thanks Bob. I basically going to build it like this: one very thin and very flat peice of glass placed at a 45 degree between the plane of the gg to the video recorder. then some circular mirrors, big enough to show the entire frame size, even if the picture tilts within the viewfinder. so ill need to use some mirrors like that, not sure exactly how many. Then, probally, 2 low power convex lenes placed at certain distances to act as a small telescope that can magnify the image of the gg. have that adjustable, and then enclose everything in PCV pipes and couplers. wa la! add an eye cup and i have a viewfinder.

There was another idea to use a really cheap CMOS camera that sell on ebay for about 15 dollars. and position that so it records off the flat peice of glass at a 45 degree angle facing up. it has adjustable focus. and it runs of 9v batterys and has the correct plugs for compenent video? composisie? im not sure, but it will plug into a moniter most definitaly.

March 24th, 2006, 09:19 AM	#16
Forrest Schultz Major Player Join Date: Mar 2005 Location: Atwater, CA Posts: 246	Thanks Bob. I basically going to build it like this: one very thin and very flat peice of glass placed at a 45 degree between the plane of the gg to the video recorder. then some circular mirrors, big enough to show the entire frame size, even if the picture tilts within the viewfinder. so ill need to use some mirrors like that, not sure exactly how many. Then, probally, 2 low power convex lenes placed at certain distances to act as a small telescope that can magnify the image of the gg. have that adjustable, and then enclose everything in PCV pipes and couplers. wa la! add an eye cup and i have a viewfinder. There was another idea to use a really cheap CMOS camera that sell on ebay for about 15 dollars. and position that so it records off the flat peice of glass at a 45 degree angle facing up. it has adjustable focus. and it runs of 9v batterys and has the correct plugs for compenent video? composisie? im not sure, but it will plug into a moniter most definitaly.