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50mm Serenar vs. 40mm Rokkor


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Mike Johnson, a photo mag editor, sees things differently.

<A HREF =

http://www.mir.com.my/rb/photography/opinion/html/sharpness.htm>Click

here to go there</A>

 

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I expect that sharpness differences are more a function of hand

holding, lens flare, and/or precise focus.

 

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BTW. We're talking both lenses at say, f/4, as opposed to the Serenar

at f/6.3 and the Rokkor at f/2. The Serenar, and almost any other

decent normal lens, is twice as sharp at f/6.3 as it is wide open.

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John,

Of course it is possible... it is happening right? Basically, your

experience is the manifistation of the reason that lens testing based

on small sample sizes is hard to use to determin which lens is better.

 

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There may be several variables in your particular equation. Are you

using the Serenar lens on a cannon RF body? If so, there may be a

disparity between the accuracy of your rangefinders. Another thing

that may give the "illusion" of more clarity and sharpness is the

50mm lens will give a 20% greater magnification over the 40mm,

requireing less enlargment to see the same image.

 

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Basically, use the lens that gives you the best results. enjoy them

and ignore reports that say you shouldn't be enjoying any particular

lens. The only thing that matters is YOUR pictures.

 

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Al

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Have you shined a flashlight into the Rokkor to check for any fogging

or fungus? Mine that came with a CLE is one of the sharpest lenses

I've ever used, at least as good as my 50mm Summicron Leica lens. The

images just pop off the page, and very fine detail is rendered even

in lower contrast lighting situations. Either you got a bad sample

of the Rokkor, or the best Canon Serenar ever made.

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