nikon rectangular eyepiece on A-series body?

<p><a href="http://www.bhphotovideo.com/c/product/37365-REG/Nikon_2942__1_Diopter_for_Rectangular_Style.html">http://www.bhphotovideo.com/c/product/37365-REG/Nikon_2942__1_Diopter_for_Rectangular_Style.html</a></p>

<p>This looks as if it would fit the A-series. Has anyone tried it?</p>

<p>This may be an alternative,(at bottom of page).<br>

http://www.bocaphoto.com/products/new/canon/canonacc.htm</p>

<p>Apologies. Thought you were just looking for an eyecup. Didn't spot the dioptre adjuster until<br>

I opened the bhphotovideo link.</p>

<p>I had to go looking. There appear to be quite a few out there to fit FD / EOS cameras, except EOS-3, A2 and Elan7.<br>

From the look of that, anything that fits other EOS models should be OK for your A series.<br>

I may grab one myself as I should be able to swap it between AE-1, A-1 and T90.</p>