where to get 43mm glass lenses?

[snakebite]

already looked at flashlightlense.com.no stock.
this is for an old anglehead 2d.
i melted the plastic one with a hot bulb.

 

[formantjim]

I'm looking for exactly the same thing but not for a flashlight but my home made Son of Pipe Light bike light.
I have found that 43mm is a standard in the Camera world and I'm going to try one of these as if it filters out UV and gives a warm tinge to everything then with light from the LED's going through it the reverse is true then some of the harsh whiteness will be eliminated.
http://www.adorama.com/TF431A.html?emailquote=Y&sid=1234796831639798
Will let you know the results as soon as it arrives.http://www.candlepowerforums.com/vb/images/smilies/smile.gif

 

[Flash_Gordon]

A 43mm photo filter will not yield a 43mm piece of glass. You will need a 46mm filter. After carefully filing through the metal rim in two places and removing it you will end up with a window just slightly larger than 43mm.

I used a Hoya multicoated UV filter for my anglehead and it works great. You should be able to find one for around $11-$13.

I have never found just a plain 43mm window for sale. Flashlight lens will cut any custom size, but only in a large quantity.

Mark

 

[kosPap]

another idea is use an optics store....they can grind down glass, so you start with a larger diameter one...

I am about to do this and let you knwo how it turned out...

 

[656nm]

Do a google search for "optical window". You should be able to find something, although as mentioned you may need to get it ground down.