leigh_marrin

Gordon, I got the lens apart! Well, I removed the front ring and front lens cell thanks to your excellent instructions and photo. For a lens spanner I used the ID-measuring prongs on a junky vernier calipers--worked great, and no damage to the calipers. I can now see the edges of the iris leaves, but what next? Were I to flood them with naptha, I'll probably stain the rear cell--is it as easy to remove and clean? Anyhow, thanks again. FWIW, the front cell of my 50mm f1.4 looks like it will cover most of a 4x5 image area; may tape it to the front of my Speed Graphic, and see what results.

<p>I recently bought a Canon Pellix that has a 50mm f1.4 FL lens, an early version of the f1.4 lens with a serial number in the 48,000 range. On the Pellix body this lens would not stop down, in either the A or M mode. I replaced it with a 50mm f1.8 FL, which works perfectly.</p> <p>Looking at the 50mm f1.4, the glass and body are in good shape--no external visible problems. Comparing the rear pin that actuates the iris on my f1.8 and f1.4, both have the same amount of spring tension. But the f1.4 won't stop down...</p> <p>I suppose it's unlikely, but I'm hoping there is an easy fix for this problem; any suggestions? Assuming it requires a repair tech to fully disassemble it to fix the frozen aperture, is the early version of the 50mm f1.4 really worth fixing?</p> <p>Thanks for any info and suggestions. --Leigh.</p>