willy_boots

<p>Hi Cory, thanks for that detail about the retaining pins. this way I'll be able to tell if it is in fact the original metal spacer. </p>

<p>Hi, thanks for all the responses everybody, you've all been really helpful.</p> <p>I took the screws out, and what I found is that a thick and thin metal frame came out. The thick metal frame has the fresnel glued to it. Good idea, using the solvent, I was trying to think of how to remove the glue -- although it may actually be some kind of caulking, not totally sure what it is yet or if it will dissolve easily.</p> <p>When I had the thick metal frame out, I dropped in a type A screen, put the DE-1 prism back on, and was disappointed to find that the focus wasn't right, it was focusing well beyond infinity. I suspect that the thick metal frame with the fresnel glued to it is the proper spacer for correct focus (if only the glue wasn't on there). Why it has those ugly counter-sunk screws is a little mysterious. Maybe it's not actually the proper spacer, but I'll have to remove the fresnel before I know for sure.</p> <p>I'm going to bring it to the store that sold it to me in a week, and maybe they have access to an expert who can throw it up on a bench and do it properly for me, but I'm pretty sure I could tackle this issue after the help from you guys. Thanks again.</p><div></div>

Hi, so this is what my f2 looks like without a prism and with the screen, marked 'k' removed. http://i.imgur.com/PPV7kdS.jpg There appears to be a piece of fresnel with a bunch of weird (TV?) lines and shapes and numbers on it glued into place. The beige coloured stuff could be the glue or something, and someone has written into it. Or do all F2s have that beige kind of glue like stuff in them? So what I was thinking I'd do is scrape the glue out, break the fresnel out, and clean in all up carefully with an exacto knife. I have an A type screen. My question for F2 owners is should the screen just sit flat at the bottom of this, um, cavity, or pit, or does it perch down there on a special apparatus that has possibly been removed? Any indoors or advice? Thanks.<div></div>