But does that comparison of MC vs non-MC work between lenses of
different focal length? Few of us have two 24/2.8s. :-)
Chuck Norcutt
Moose wrote:
> Chuck Norcutt wrote:
>> Yes, at least in my case, looking for green reflections as indicative of
>> multicoating. As I recall, this was judged by some to be unreliable. But,
>> for my own experience with my own Zuikos, I've never seen an x.Zuiko that
>> reflects anything green (blues, reds and yellows only) and any lens I have
>> that says "MC" or has a serial number newer than the "MC" marking period all
>> reflect green. But I have multicoated Kirons that don't reflect green.
>>
>
> I wasn't here for that project. Having read some about it, I was
> surprised when I sat down to peer deeply into two 24/2.8 lenses, one SC,
> one MC. Yes indeed, there were different colors, but the most striking
> thing was how much dimmer the MC reflections were. That's the point, of
> course, but it interested me how immediately obvious it was which lens
> was MC without bothering to check individual reflection colors.
>
>> I suspect great caution is required here since it was reported back then
>> that Olympus first started multicoating selected elements long before all
>> elements were multicoated and supposedly before "MC" became an important
>> marketing factor and placed prominently on the lens. It is probably much
>> more important to multicoat certain interior elements to control interior
>> reflections than it is to multicoat the front side of the front element
>> which would only make a miniscule improvement in light transmission.
>>
>
> Yes, I think it's clear that there was a continuous development of MC
> technology during that time.
>
> Moose
>> Chuck Norcutt
>>
>>
>> Moose wrote:
>>
>>
>>>>
>>>>
>>> If I recall correctly, those were the days of peering deep into the lens
>>> looking at reflection colors. Wasn't the "MC" column to be a judgment
>>> based on observation of the coating themselves? Others, and I to a
>>> limited extent, have noticed that the coatings changed character with
>>> later production within both SC & MC. This may have been a late version
>>> of mostly single coating with a different formula and/or a multiple
>>> coating or two that fooled the eye.
>>>
>
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