I actually thought Cory had suggested this, so I apologize again.
However this seems like a possible Firmware hack. There was a cottage
industry in hacked firmware for the D300/Digital Rebel to put back
functions that were in Canons higher level offerings that were left out
in the Rebel. I wonder if someone will be willing to risk permanently
disabling their *ist-D to try something like that.
Gonz wrote:
>I've suggested this before, but I dont think Pentax was listening....
>
>Or they were, but are sticking with the GB thing so that they can sell
>more lenses. ;)
>
>rg
>
>
>[EMAIL PROTECTED] wrote:
>
>
>>I think you're being too complicated. How about this. Call it auto
>>stop down compensation
>>
>>1.) Mount a K lens. Or take an A/F/FA off A position. The Camera
>>automatically senses this.
>>2.) Set the mode dial to Av, if it's not there already.
>>3.) Press the green button.
>> a) The camera takes a meter reading and temporally records it.
>> b) The lens stops down to taking aperture and makes a reading
>>subtracting the EV value from the temporally stored value.
>> The camera now knows the difference between wide open and
>>the current F stop set on the lens.
>>
>>Now every time you take an exposure the camera calculates the proper
>>exposure based on that offset. (It and also display an estimate of over
>>or under exposure in the viewfinder).
>>
>>No extra dials or buttons to press. If you change the aperture you get
>>instant exposure compensation.
>>
>>If you change aperture and don't want exposure compensation press the
>>green button again.
>>
>>Make this type of operation a menu item in the custom menu with a
>>default to the Av behavior.
>>
>>Basically an aperture simulator for Av all done in software.
>>
>>The only problem is that you might run out metering range, but that's
>>true of using the green button Kludge now anyway.
>>
>>Cory Papenfuss wrote:
>>
>>
>>
>>
>>>>>Of course it's academic since it's not an option with the current
>>>>>firmware, but I don't think it would be too bad. The +-EV only works
>>>>>within 3 EV from wide open, and even then you have to do the math of how
>>>>>many stops you are from wide-open.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>Or 6 if you calibrate on 3 stops up from open-aperture. I have done
>>>>it, Cory, it's a pain, even without having to go into a menu to
>>>>indicate the aperture.
>>>>
>>>>Kostas
>>>>
>>>>
>>>>
>>>>
>>>>
>>> I still think that's more confusing than what I'm thinking. The
>>>most annoying thing is having to set (somewhere) the maximum aperture of
>>>the lens... I'm thinking a "button+wheel" maneuver in P or Av mode when
>>>you mount up a K/M lens. Firmware could "blink" the aperture (e.g. '1.4')
>>>to let you know you set it. After the lens is mounted and max dialed in ,
>>>you just have to dial the wheel to match what you've set the lens to. It
>>>saves having to mentally do the math, allows open-aperture metering all
>>>the way to the min aperture of the lens, and doesn't require the "GB
>>>trick" evertime the lighting changes... only that when you move the
>>>aperture ring on the lens you match it with the dial.
>>>
>>> How exactly do you get 6 EV?
>>>
>>>-Cory
>>>
>>>--
>>>
>>>*************************************************************************
>>>* Cory Papenfuss, Ph.D., PPSEL-IA *
>>>* Electrical Engineering *
>>>* Virginia Polytechnic Institute and State University *
>>>*************************************************************************
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
>
--
Things should be made as simple as possible -- but no simpler.
--Albert Einstein
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