From: mike wilson
John Sessoms wrote:
> From: Scott Loveless
>
>> On 9/10/09, Mark Roberts <m...@robertstech.com> wrote:
>>
>>> >
>>> > Unless it's something much better than the K7, both in terms of higher
>>> > performance and higher price bracket.
>>
>>
>> My money's on Cotty NOT eating his hat. They'll bring back aperture
>> simulators before we see a full frame SLR from Pentax.
>
>
> This seems to be an old inside joke on PDML, but I still don't
> understand what an aperture simulator is supposed to do.
>
> Yeah, it simulates the aperture, but to what purpose?
>
> Can someone explain it in REAL SIMPLE terms?
>
> For reference, I have the following Pentax cameras to use as examples I
> can look at it while I'm reading the explanation if any applies:
>
> K10D
> *ist-D
> PZ-1P
> LX
> Super Program
> K1000
> Auto-110 Super
It's a mechanical system for setting the aperture so that when you set
the number on the aperture ring the lens stays wide open for focusing,
only stopping down as you actually take the picture. The simulator part
allows the body to set an appropriate shutter speed.
Its absence on the original DSLR (replaced with an [GASP!] electronic
system that required a different type of lens) was the cause of much
wailing and gnashing of teeth from those who had large collections of
lenses built up over many years and who could not put down purchase of
new ones as a tax deductible.
There are some who swore they would never buy another body until a
full-frame, weather-sealed, apeture simulated one became available.
So, the "aperture simulator" is just that little lever at about the 2:00
position on the K-1000's lens mount that hooks into Pentax-M lens to
tell the camera what aperture is selected.
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