auto focus & IR

[Ray.Hale@xxxxxxxxxxxxxxxx]

     I don't recall seeing a thread on this before so I'm diving in.  My 
     students are starting to show up with Canon EOS cameras a lot lately.  
     Must have been a sale recently!  Anyway, we understand there'll be a 
     fogged line across the top of the negative and they have managed to 
     shoot wide so as to be able to crop that out in the print.
     
     What we also noticed is that the auto focus (presumably IR) is spot on 
     most of the time with the HIE in the camera.  The lenses aren't marked 
     with an IR focus mark and I seem to remember the manual saying not to 
     bother using IR film in the EOS camera.  Anyone else notice the auto 
     focusing being correct in these cameras?
     Also:
     The last two semesters we saw a lot of the infamous air bubble marks 
     on our HIE.  I sent a strip to Kodak and they responded with a set of 
     revised processing instructions.  We tried those last night with great 
     success.  They are :
        1) Do not use a presoak
        2) Drop the film into the tank and developer rather than pour       
           developer into the tank (requires total darkness of course)
        3) Immediately rap the tank to dislodge bubbles before beginning    
           agitation
        4) Everything else is as always
     
     We were also advised to add developing time to the newer charts 
     (remember when Kodak suddenly changed their recommended HIE times from 
     12.5 to 8.5 minutes at 68F?).  I personally added one minute and the 
     density change was insignificant but the contrast was oh so much 
     better for my taste.  It's just a small test on one night but it was 
     an immediate improvement over the last terms.
     Ray Hale
     SFCC
     Gainesville, FL
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