Quote:
Originally Posted by KeithT
Flare is a lens problem Chris, and if the lens isn't coated for digital, light can bounce of the sensor causing flare or even ghosting.
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You're right, in fact I think we're agreeing. What I was trying to say is that flare is not a problem only associated with digital cameras. It's entirely due to the lens and any lens susceptible to flare will always be like that, regardless of the format of the camera onto which it is mounted.
Interestingly, digital camera technology hasn't changed the coatings used on leses particularly as manufacturers have spent a lot more time looking at more advanced use of aspherics to increase corner frame illumination. Once they're happy (or at least happy that we're happy) with that, flare will perhaps be something that they will concentrate on a little more.
Its unusual that you had such problems with a monofocal optic and flare though, its usually the other way around. Wider apertures obviously make flare more obvious and simply having the larger glass elements means there is more potential for internal reflection. However, this is normally a much greater issue for zoom lenses and focal lengths shorter than about 25mm (hence the traditional 24mm wideangle length "limit").