Re: [OM] Best FILM for lens testing?

[Wayne Harridge]

The essential requirement for any comparative testing is to maintain all the
conditions the same except for the item you want to compare.  If you're
comparing 2 lenses here's no point shooting that USAF test target using PAN
F in sunlight for one lens and Velvia and flash for the other.  The typical
scenario seems to be: somebody posts a question on photo.net asking which
50mm Nikon lens has the best bokeh, many people have an opinion and many
images are posted (including the odd ones shot with a 50mm summicron, Canon
85/1.2 and the 38mm Biogon on 6x6 !), some monochrome, some colour,
different light, different subject matter, etc.  So how do these help to
answer the poster's question ?

...Wayne

Wayne Harridge
http://lrh.structuregraphs.com/


> -----Original Message-----
> From: Chuck Norcutt []
> Sent: Friday, 3 July 2009 10:50 AM
> To: Olympus Camera Discussion
> Subject: Re: [OM] Best FILM for lens testing?
> 
> Humbug for your USAF line charts.  They probably existed for testing
> B&W
> aerial photography lenses. :-)  I'm with Wayne.  You won't find any
> bokeh in this test but I'll take this sort of controlled light test
> image any day  <http://www.imaging-
> resource.com/PRODS/E3/E3hSLI0100.HTM>
> 


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