The flash was pointed straight up. No doubt much of the light came from
reflection off the lighter stone below the wood. But regardless of
where it came from I was startled to see that there was any visible at
all. My mental computation of the sensitivity of the camera at ISO 3200
was way off.
Chuck Norcutt
C.H.Ling wrote:
> The light in your 2nd image looks like came from the "leakage" of your flash
> directly and some reflection off the wall, may be only a very small amount
> is came from the ceiling. But for indoor I highly recommend to use flash
> bounce off any where possible, the additional light could be very useful. I
> did some with high ceiling too (not as high as your example) with Fujipress
> 800 ten years ago with the 100/2, 24/2 and 180/2.8, even with F2 wide open
> it wouldn't work without flash.
>
> http://www.accura.com.hk/temp/f800/f800.htm
>
> C.H.Ling
>
> ----- Original Message -----
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
> Sent: Wednesday, October 21, 2009 7:13 AM
> Subject: Re: [OM] [OT] new Canyon 1d Mk
>
>
>> I can tell you that one has to learn to think differently when one has
>> workable very high ISO available. A couple of weeks ago I attended the
>> wedding of a friend's daughter which was held in a very large, old stone
>> church. The ceilings were oak paneling about 40 feet up. I watched the
>> two young women doing the photography and at first thought them to be
>> nuts. They were shooting with Canon 5D Mk IIs, 24-70/2.8 IS lenses and
>> 580EX II flash units. I could tell that the flash units were on and
>> they appeared to be bouncing the flash off the 40 foot high dark
>> ceiling. I thought they were crazy. No, more than crazy. Just plain
>> nuts. Afterall, the light would hardly reach that 40 foot high ceiling
>> let alone be reflected back.
>>
>> But crazy they were not. After the wedding I spoke to them and
>> discovered that they were shooting at ISO 4,000 and very deliberately
>> bouncing off the high ceiling. I don't know what shutter speeds they
>> were using but, given the IS lenses I would guess 1/15 to 1/30 second.
>> I was so impressed I took my own camera back into the church as the
>> people were filing out and took a couple of test shots and duplicated
>> the conditions as best I could. The only lens I had with me was a
>> Tamron 24-135/3.5-5.6. I took two test shots both at ISO 3200, 1/100
>> second at f/3.5. The only difference between them is that one has by
>> Canon 540EZ flash bounced at full power off the ceiling. I was amazed
>> at how much additional light showed up. With their gear they could
>> easily have been 2 stops ahead of me. Here are my samples:
>> <http://www.chucknorcutt.com/High%20ISO%20bounce%20flash/index.htm> They
>> are converted from raw just as they were shot. No exposure
>> adjustments and not even any white balance adjustments to correct for
>> the daylight setting. Adding 2 more stops and correct color balance
>> would produce excellent images.
>>
>> I was impressed and realized that I was still mentally stuck with the
>> capabilities of ISO 400 film. :-)
>>
>> Chuck Norcutt
>>
>>
>> AS wrote:
>>> What the heck would someone do with ISO 12,800 (extendable to ISO
>>> 102,400)?
>
--
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