Interesting theory, Mark. Please report any further findings on this.
Lasse From: "Mark Cassino" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, February 23, 2005 8:02 PM Subject: Re: Opinions about Tokinas (Was Sigmas) > I posted this before (over a year ago), but I think it's an interesting > illustration of what is being discussed in terms of how lenses differ > between film and digital: > > http://www.markcassino.com/temp/robin/ > > This shot was taken with the Tokina 400mm ATX, handheld. In the actual pixel > shot, the degree of apparent detail in the birds breast is remarkable. But I > have found this lens to be pretty mediocre with film in the past. > > I guess I'd have to find a bird and hold it in my hand to know for sure, but > I really question the detail in the feathers. They look like hairs, not > feathers. My conclusion was that a low resolving lens with low CA and high > edge sharpness - which is what my tests showed the ATX 400 to be - will > create an image with clean edges and a high degree of _apparent_ detail. I > say apparent detail because I don't think the birds breast feathers would > really look like that, I think that the primary ribs of the feathers have > been exaggerated and the connecting fibers have been all but lost in this > shot. Psychologically, one looks at that and thinks "Wow - what detail!" > but I really question that. > > Maybe I can find a natural history museum with a robin specimen and can > confirm my suspicions... > > - MCC
