"Jonah D. Klevesahl" wrote:
>
> I'm looking to spend a weekend (and a lot of money on film) to do some
> pretty extensive field testing of the lenses I currently own, as well as
> some I'll be renting to help determine which telephoto (200+, zoom or not)
> I should buy. I've read the actual report numbers using USAF test targets
> and such on most of these lenses, but I'm finding a general lack of
> real-world examples. so rather than whine about it I'm going to do it
> myself.
>
> I was wondering what those on this list do to "test" a lens when they get
> it? do you setup a test board of some kind and shoot at varying apertures
> and shutter speeds? do you just go out and shoot what you normally do and
> try to compare quality? and when you actually compare quality, is it on a
> light table (assuming you shoot slides), scans, or enlargements?
>
> and aside from documenting EVERYTHING, is there anything else I should
> keep note of? (I'm going to try and do this all in the same two hour
> period, so lighting won't change much.)
>
> TIA
>
> - jonah d. klevesahl [->><-]
Jonah,
I personally don't test lenses with USAF targets or brick walls. I test
my lenses with the things I normally shoot, my wife, my grandkids, race
cars, etc.....
Keep track of your exposures so you can see what happens at various lens
apertures.
Bob
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-73 de Bob [EMAIL PROTECTED]
Everybody has a photographic memory. Some just don't have any film.
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