Re: [Paddlewise] Cameras - Lenses and Waterproof

"Looze, John & Donna" wrote:
> 
> <In my experience(qualification: I have no interest in looking at
> 
> photograph of a resolution chart, especially with a magnifying glass),
> 
> lens quality has little bearing on the sharpness of an image. The
> 
> anchoring of the camera by the photographer and the mechanics of the
> 
> equipment has a greater impact.>
> 
>  I can agree that shaking the camera body certainly effects the quality of the
> image.  It will negate the effect of the best lens.  Leaving aside that type
> of external factor, it is the lens that primarily dictates the sharpness of
> the photograph.
> 
>     A sharp photo requires a good lens first, and good film secondly.  The
> lens receives and transmits the image to the film.  All irregularities in the
> lens show up on the image that arrives at the film.  Therefore, image
> sharpness degrades with the amount of lens irregularities.
> 
>     Most brand name films are just dandy.  Because of film advances, I would
> also agree that even the high speed (eg, ASA 400) are fine for most uses.

Again, in my experience, printing large, with a multitude of different
cameras I have used since the early 70's, Nobody has been able to tell
the image differences.  For water work, I use a Canon Sure Shot film
camera.  Can't tell the difference of neg quality between that and any
other film camera I have used.
The major difference I have found is in appreciable sharpness 
differences is in film format.

> 
>     The camera body, is however, nearly irrelevant to the sharpness.  What was
> said in the 30's is just as true today.  "Give me a good lens and film, and I
> will give you a good picture from a cigar box."

I have no idea what the quote means, but camera body makes a major
difference in camera shake.  Nikons have always had an excellent
sharpness reputation more because of the weight of the camera, dampening
of the mirror, and ergonomics of allowing you to steadily grip the
camera.  Glass has little to do with it.

Leica rangefinders have the same attributes with no mirror vibration

This is all very apparent if you test all the cameras with the flash
which will negate camera shake.

regards, gabriel
-- 
                            Gabriel L
Romeu                                                    
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