Sorry.  The sentence should have read:

Interesting that Boris suggests that a good rule of thumb is two EV
down from the max ISO.

Oy.

On Wed, Sep 1, 2010 at 2:17 PM, Steven Desjardins <drd1...@gmail.com> wrote:
> Yes, I remember Tri-X at ISO 400.  All I could afford as a 15 year old
> kid and I developed it all myself.  Interesting that Boris suggest
> that a good rule of thumb is EV down from the max ISO.  So that puts
> the K7 at 1600 and the Kx at 3200.  I found an interesting article at
> http://www.imaging-resource.com/PRODS/K7/K7A.HTM  .  It's a K7 review
> but has many samples of images at high iso on different cameras, one
> of which was the E-P1.  It appears that the E-P1 has better high ISO
> detailing than the K7, although a lot of this is judgement.
>
> On Wed, Sep 1, 2010 at 11:16 AM, Paul Sorenson <allarou...@earthlink.net> 
> wrote:
>>  It is kind of mind boggling.  When I got my first SLR in the early 1960s
>> High Speed Ektachrome, at ASA 160, was a big step up in speed. :-)
>>
>> On 9/1/2010 9:53 AM, Steven Desjardins wrote:
>>>
>>> I freely admit that I don't think I am really understanding the
>>> implications of ISO 12,800.   It's like a person being 20 ft. tall.
>>> My mind has trouble associating that number with that property.  I
>>> noticed that one high end Nikon had a max sensitivity of 102,400.
>>> That's like trying to grasp an f0.1 aperture.  It makes mathematical
>>> sense in terms of EVs but I never thought I would see such a thing.
>>>
>>> On Wed, Sep 1, 2010 at 12:25 AM, Paul Sorenson<allarou...@earthlink.net>
>>>  wrote:
>>>>
>>>>  Here's another K-X example if you need low light capabilities.  Pretty
>>>> much
>>>> a straight import into LR3 - at ISO 12,800.  The noise isn't
>>>> objectionable
>>>> at normal viewing.  (K-X, fa80-...@320mm,1/1...@f5.6)
>>>>
>>>> http://www.studio1941.com/photos/content/IMGP0631_large.html
>>>>
>>>> -p
>>>>
>>>> On 8/31/2010 1:34 PM, Bruce Dayton wrote:
>>>>>
>>>>> One big difference for me was that with the K20 and earlier I really had
>>>>> to have good conditions (lighting, processing, etc) to make a high
>>>>> ISO shot reasonable.  For instance, when shooting weddings I could
>>>>> take a couple of shots with the 50/1.4 lens close to wide open and no
>>>>> flash, then process to remove ugly color cast and grain, etc.  The
>>>>> resulting image would possibly even need to be turned to B&W.
>>>>> Basically, this meant that the shot was not the norm, but the
>>>>> exception.
>>>>>
>>>>> With the K-x, it is totally changed.  Straight out of the camera, ISO
>>>>> 6400 is looking quite good - no extra work.  So now I have shot
>>>>> entire receptions with no flash and no heavy post processing.  Even
>>>>> more so, simple snaps of the family in situations where I would have
>>>>> used a flash in the past, I no longer need to.  Gathered around the
>>>>> dinner table talking in the evening or playing a game or one of the
>>>>> kids receiving an award at school, etc.  The ability to shoot
>>>>> consistently at high ISO (1600+) is a real game changer.
>>>>>
>>>>> ISO 6400, 85mm Soft Focus lens, no post processing, shot right after
>>>>> dinner:
>>>>> http://www.daytonphoto.com/PAW/imgp1200-1.htm
>>>>>
>>>>> I would never have thought to take that kind of shot in the past.
>>>>>
>>>>>
>>>>> That is why I am saying to try the K-x and really see how different
>>>>> you start shooting and thinking.  When I got mine, it was only to
>>>>> shoot a gymnastics sporting event - that covered the cost for me.  It
>>>>> turned out to be just the tip of the iceberg.
>>>>>
>>>>> Here is a shot from a reception - fairly dim lighting - ISO 6400 -
>>>>> pretty much no post processing:
>>>>> http://www.daytonphoto.com/PAW/hoffman_00295.htm
>>>>>
>>>>> With flash, the shot would not be the same.  This is the kind of
>>>>> thing I am talking about.  Not really thinking about how you shoot
>>>>> today, but really thinking outside of the box.  For me, the K-x was
>>>>> really a game changer in thought process and fun.  Prior to that,
>>>>> pretty much the old thought process all the way back into my film
>>>>> days.
>>>>>
>>>>> "If you always do what you've always done, you'll always get what
>>>>> you've always got."
>>>>>
>>>>> Time to change it up and see what this Brave New World is offering.
>>>>>
>>>>>
>>>>>
>>>>>
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>>>>
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> Steve Desjardins
>



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