Ah, but the A1's ISO isn't quite accurate, either. ISO 100 is actually
160 (based on midtone), 200 is 320. Beyond that, I'm less likely to
use it. I rarely use it at 400, but it does give another 1/3 stop gain
or so. It's hard to tell at taht point because the noise floor starts
to skew everything.
But set to ISO 200, wide-open, the A1 probably would have done just
fine. And it is nearly silent other than faint clicks.
I've used the A1 a ton for this exact type of application. What I have
learned is to overshoot because you're always fighting the shutter-lag
and also you are fighting subject motion. It can take me 4x as many
shots to get an acceptable one compared to a regular DSLR, but the
near silence and the flexibility of the lens outweigh the
disadvantages in those circumstances.
AG
On Mon, Oct 21, 2013 at 8:20 AM, Chuck Norcutt
<chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> I'm skeptical but give it a try. It just might work. Under the same
> conditions as shooting the violinist at, say, 2.2 meters and 100mm f/5.6
> the A1 should allow shooting at 25mm and (guesstimate) wide open at
> f/3.2. That would give a slight (10%) depth of field advantage to the
> A1 along with a 1-2/3 stop advantage for exposure. The A1 also has
> "anti-shake" image stabilization, an advantage over your manual Zuikos.
>
> The drawbacks to the A1 are a maximum ISO of 800 which, along with the
> 1-2/3 stop advantage of shooting at f/3.2 gives the equivalent exposure
> of ISO 2500. Sounds good but the drawback is that the A1's ISO 800 is
> really noisy. Another problem is that the A1's very early contrast
> detect autofocus works poorly in low light. It might be necessary to
> focus on some brighter proxy and then switch to manual focus to keep the
> camera from focus hunting.
>
> I suspect the E3 with an autofocus lens with 50-100mm range and set on
> maximum ISO will still win the contest... but I could be wrong.
>
> Chuck Norcutt
>
>
> On 10/21/2013 8:54 AM, Brian Swale wrote:
>> Ken wrote ( and others made helpful analytical comments).
>>
>>> &> My thoughts exactly. Brian was going to take picture in a challenging
>>> &> situation, light-wise. It seems that he did not take the right tool with
>>> &> him.
>>> &>
>>> &> Agreed. He should have used an iPhone with Instagram.
>>> &>
>>> &> Ken Norton
>>
>> In retrospect, maybe I should have charged up the Minolta A1. It yields 5
>> MP which would
>> have been adequate, is totally silent, has a 7x optical zoom that goes from
>> 28 to 200mm, and
>> is not a visually dominating camera for a public setting.
>>
>> I'm charging it up now and will run a few trials ...
>>
>> I have neither an Eyefone nor an Eye Pad.
>> A Motorola "Rugged" flip-phone does me just fine.
>>
>> Brian Swale
>>
> --
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--
Ken Norton
ken@xxxxxxxxxxx
http://www.zone-10.com
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