Conner999
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 p.3 #17 · ZF28/2, Contax 28/2 and 28/2.8? | |
Ok - these issues are easier to address. The mirror is being an SOB at the top of it's arc during it's swing.
As an aside: it also needn't be hanging (when hanging on shutter trip vs. MLU). When very close to clearing, they usually are actually plowing thru their complete swing, but are slowed down just enough from the grazing contact so as not to be able to get clear of the sensor's field of view when the shutter trips.
1. Novoflex. Many people argue they are worth it in that they use the same Leica-side hardware as does Leica - same parts supplier. That said, I know of at least one such adapter that literally came apart at the seams and was sent back to Germany in a Ziploc. Not kosher for an adapter, new, that costs in the $300 snack bracket. My vote - pass on it.
2. Rudolph (happypagehk) makes great product. Just adjust the adapter so it fits TIGHTLY.
3. Chipped or non-chipped makes no difference on infinity focus - it's the thickness of the adapter that can be an issue with the #$%^ finicky 5D. An adaptyer like HK's encoded for that specific lens (which he does free) will make life easier when looking for pics, etc.
4. Setting at infinity and stopping way down may help if you are VERY close to achieving infinity focus. Have never tried it.
5. The easiest & fastest fix for the mirror hang so you can test the lens properly:
- Get some metal duct (not Duck) tape (the real aluminium stuff used for metal ducts ) it's apparently 0.001" thick.
- Unscrew the Leica side of the adapter from it's Canon side. Use the right sized screwdriver and take it easy - the screw heads are soft and you don't want to cam-out with the screwdriver and mangle them (I @#$ hate Philips screws for that reason).
- Stick one layer (no overlap) of thin strips (say 4) of the tape on the inside of the Leica side of the adapter. Make sure you get all 4 quadrants of the compass (N, S, E, W) if you will.
- Trim off any excess on the inside or outside of the Leica 'ring' with a single-sided razor, X-acto, etc.
- Re-screw the two halves together. Don't over tighten - just snug (you may need to screw/unscrew more than once). Sscrew them in liek lug nuts on a wheel - 9 oclock, then 3, then 12, then 6, etc.
You've now move the lens 0.001" further away from the mirror.
Mount lens and try. Given you are just hanging, 0.001" (- the miniscule compression from the two mount halves) may just do the trick.
If not quite, rinse & repeat above with a 2nd layer. Once you get it working, remove the screws, put a drop of Loctite on each and snug back down (ignore this step if you intend to shave mirror so you can remove tape after mirror shave, THEN use Loctite).
Scotch tape will also work, but Duct tape is far stickier. Can also use thin paper, etc, but a self-adhesive and very very thin material of consistent thickness is easier.
Now, the above will make infinity MORE difficult, but at least you could test lens.
The best long-term bet, as you suggest, is to tweak the mirror. This will allow you to mount damn near anything -- and it also doesn't make much material removal either. Modifying the lens is a bit riskier and given that you have 'one of those' 5Ds will be of little value with other lenses. Besides the law of averages would imply that the more lenses you modify, the greater the chance of a Dremel head or file inadvertently passing across a rear element..;<
Another option is to have a local camera repair dude order you a spare mirror, modify that mirror (no risk of junk in camera) thyself with a file or Dremel, then have the same shop swap the two (they are just glued on). If you re-sell, you can give buyer option of modified or non-modified.
Once you get to look at the entire frame ;>, you'll love with that lens can deliver - it's just too bad your camera is being such a PITA.
Edited on Apr 22, 2008 at 12:13 PM
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