Re: [Killietalk] Phish Photography, again.

["Mark & Peta" <mbethke at socal_rr.com>]

Tony, I hear you about "Built in dirt", when I bought my OM-1 a few decades
back a found a sigma macro lens that was a good deal and in great condition.
It had the same bayonet mount that was very tight and a good fit. I wondered
the same thing as you , images were coming out with some dark blurs. I
thought it was something on the mirror, took it for cleaning and the
servicemen said everything was fine, he said to check the lens I use, sure
enough, the sigma had fungus growing inside if, some strange dark root
looking stuff on a inner lens. Took some doing for the camera guy to take
the lens apart and clean it out, seems someone had dropped the lens in some
sort of moisture ...Anyways, glad you ae happy with your camera, that's the
most important point...mark
----- Original Message ----- 
From: "Tony Terceira" <terceira at ride_ri.net>
To: "killifish discussion list" <killietalk at aka_org>
Sent: Tuesday, May 11, 2004 6:03 AM
Subject: Re: [Killietalk] Phish Photography, again.


>
> >Wright wrote:
>
>
>
> >PS. The best sensors seem to be in the interchangeable-lens DSLRs, but I
> >still don't buy into their pitch. Lenses optimized for a full 35 mm frame
> >are way below optimum for the smaller central image for a 2/3" sensor. A
> >fixed, purpose-designed, short-range zoom still makes the most sense to
> >me, and eliminates the dust and cleaning problems.
>
>
>          I have a real difficult time with this  Wright, Now that I have
> been using my  Nikon D100 (digital SLR)  for just about two years, and
have
> pushed every lens I own in front of the sensor.......... I cannot believe
> that any zoom fixed lens is going to come close to using Macro lenses at f
> stops smaller than 8 for macro photography.   I change lenses all the time
> and shoot a great many images under all condition, I have not seen a dust
> problem,  Sent the camera for an annual cleaning and everything was
> fine.  I'll tell you what is different, I had a lens, that had a small
> speck inside the lens itself, probably an internal finish flake    ... I
> used the lens on my regular bodies for years and never notice, on a
digital
> I kept seeing a cloudy spot on every image in the same location ..  the
> digital sensor picked up the dust as it read through the
> lens.............   I had to have the lens opened and cleaned  .. Never
> showed up on any non digital image.
>
>          I know that the lens not made specifically for digital have some
> problems wide open, and that the 1.5 factor bothers some people who love
> wide angle, but for fish, there is nothing better than a 105mm lens acting
> like a 150mm ...  still 1:1 reproduction capability and increased distance
> from subject..   I just love it. ! - I now have a 300mm macro lens capable
> of 1:1 ..  Now that's an amazing lens
>
>          If you look at the Pro's at any sporting event today....99% of
> them are shooting digital SLR's with BIG lenses from their film bodies on
> them............  they make a living on their ability to capture quality
> images and have all just about completely converted to digital.
>
>          Now don't get me wrong, I still love color slides, the definition
> and quality is still fantastic, and the ability to scan them at extremely
> high resolution makes them more versatile.  But I "gotta tell you" a 6
> megapixel image in tif format is one hell of a image size, and at ISO
below
> 400 makes for some amazing reproduction.
>
> Tony
>
> Tony Terceira
> Scituate, Rhode Island
>
> terceira at ride_ri.net
>
> Visit our Web Site
> www.thefishwizards.com
>
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>



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