Coding/lens detection/IR questions

[sean_reid]

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Hi Lars,

 

you wrote;

 

"First, from necessity I had to use a B+W 486 filter on my pre-asph. 21mm Elmarit, and I could not detect any bad effect from not using a Leica-branded filter, even though these are supposed to be the filters that the firmware is calibrated for. This makes me suspect that the only wide-angle lenses that really do benefit from a Leica filter (in contradistinction to B+W) may be the Cosina/Voigtländer 15 and 12mm numbers! I have a Leica 39mm on order and will investigate."

 

If you get a chance to do careful testing with the various filters, you will indeed see a difference among filters on the UW lenses. That is, of course, if the M8 itself is doing the correction. If one is using CornerFix, it doesn't matter.

 

"Second, when working in black and white, it can be advantageous to work with common UV filters or without filtering."

 

I agree. There are pros and cons to that.

 

Cheers,

 

Sean

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[GarethC]

Some follow up questions if I may. I have two filters and the rest are arriving tomorrow if Canada Customs maintain their usual level of ineptitude.

 

Plus, the Milich milled mounts are on the two lenses. Almost all set. So here goes. And Guy, thanks for that response, hit the nail on the head and have followed it to a tee.

 

1. I have just filled in the Milich mounts with a Sharpie, not as pretty as the only ready coded lens I have. How do I tell if it is coded effectively and the camera is seeing it?

 

2.Where do I get a lens cap for the Milich CV 15/4.5 lens hood or do you take the hood off when not in use (that is way too much work for my tastes)?

 

3. Why can it be better to remove the uv/ir filter for black and white work?

 

4. If the CV 15 shows up as the WATE when coded where in the menu can I find that so that I have to select? Either I'm being dumb or it's not recognized.