I have an Ilex paragon lens in an Ilex #3 Universal self-cocking shutter. I find that of my large collection of good-quality cable releases, only one has enough extension to actually fire the shutter correctly, others which are apparently identical just do not extend enough. Has anyone experience of this - is this normal or does the shutter need servicing?
I have an older Ilex which seems to suffer from the same. You might want to check the ummm..."depth" of the cable release. I find some have longer ones than others.
The mechanism that trips the shutter tends to migrate with time. Have it adjusted and you can use a normal cable release. Most people think you need a special cable release for the Ilex #5, but mine is in good repair, and I think almost any cable release I have works with it.