View Full Version : what to do with condenser glass?

15-Aug-2016, 09:23
I have this condenser lens, don't know what it is from.

But I thought it would be fun to think up a few ideas of what could be done with it.

https://c2.staticflickr.com/8/7510/28386298873_2dc95b81a1_z.jpg (https://flic.kr/p/KfpcG6)

https://c4.staticflickr.com/9/8694/28386298843_160afa5386_z.jpg (https://flic.kr/p/KfpcFz)

https://c7.staticflickr.com/9/8805/28383792614_31b93546c6_z.jpg (https://flic.kr/p/KfbmEJ)

LF camera? Telescope? periscope?

I'll try and get some details on the lens's parameters sometime (just moved though so have to go digging again). wish I had measured the distance to that bolt on the wheel barrow...

https://c7.staticflickr.com/9/8895/28383792734_2f12e08728_z.jpg (https://flic.kr/p/KfbmGN)


15-Aug-2016, 09:25

Jim Jones
15-Aug-2016, 10:45
It looks more like a telescope objective than a condenser lens. What are its focal length and diameter? Does it consist of two or more elements, either air spaced or cemented together?

Peter Gomena
15-Aug-2016, 10:55
Careful where you leave it, you might start a fire if the sun hits it at the right angle!

15-Aug-2016, 11:58
Can it burn ants?

David Lobato
15-Aug-2016, 17:11
It may be a good light intensifier with artificial lighting. It might be fun to experiment with its effects on a light source. That was its original purpose, now just add a few twists of creativity. Try shining light into one side, then the other to see what difference there is. If you happen upon something interesting, post pictures for us.

15-Aug-2016, 17:35
I have also used these for a intense backlight for an even light stage for duping film or macro work... Try getting an even light out of these, testing with a single LED bright flashlight...

Steve K

15-Aug-2016, 23:45
thanks dave and Steve those sound like fun investigations!