FD Filter Types

[stephen_moon1]

<p>I have Canon FD 50mm 1.4 lens and I bought a filter for it - a polarizing filter. I read that it needed to be 52mm and I found one of that size that was made by canon. The problem is that there is no way to attach it, as I see it. Both the 50mm lens and 52mm filter have threads on the inner lip, it just lays inside the lens with no way to attach. Did I buy the wrong one, or is there supposed to be an adapter to make them connect? Thanks for the help!</p>

[yockenwaithe]

<p>If there isn't a female screw adapter for the filters, there may not be one. Or you may have to twist the end off of the lens to expose the threads [this was the case with one of my lenses], as some have a built in filter with no additional threads on it</p>

[david_carroll4]

<p>Do you have an all-black "bayonet-mount"* lens or a breech-lock version with a silver lock ring to attach it to the body? Both are technically "FD"s, but the bayonet mount uses a 52mm filter, while the breech-lock version uses a 55mm filter. I suspect that you have the earlier 55mm version.<br>

*technically also a breech-lock, but operates like a bayonet mount, in hat you twist the whole lens, rather than just the ring</p>

[rick_janes]

<p>The New FD 50 1.4 had 52mm filter threads, the earlier FD models were 55mm.</p>

[stephen_moon1]

<p>It has a silver ring to attach it to the body.</p>

[Lou_Meluso]

<p>Yes, you got the wrong size. You need 55mm filters for that lens.</p>

[steven_clark]

<p>And at some point you stand a good chance of having one of the other lenses, so you might want a 52-55mm step-up ring so you can use one size of filter for the less common stuff.</p>

[richard_cook2]

Web.mit.edu/dennis/www/canon/fd-lens-info.html

 

This site has a table with all the lens details I think.

[walter_degroot]

<p>Inotie small bumps on yjhre front of some fd lenses.</p>

<p>I was told that this was for a canon brand lens shade.<br>

I was frustrated trying to specify such a shade.<br>

instead bought threaded shades.<br>

( former owner added a skylight filter so the camera had a shiny reflecting front edge!</p>

<p>anyway to search/speify this shade<br>

is there any way to mount filters on this type of shade</p>

[dave_s]

<p>Walter, some (not all) threaded lens shades have a female thread on the front of the shade. Alternatively, you can screw the threaded shade into the front thread of the filter.</p>

[awahlster]

<p>The Canon Bayonet shades attach to the outside of the lens barrel and you can use the filter threads as normal. Granted with a polarizing filter its a huge pain because you can't reach the adjustment ring with the hood on.</p>