High ISO questions

John jsessoms002 at nc.rr.com
Thu Oct 3 19:19:31 EDT 2019


Better aim low boys, they're riding Shetland Ponies.

On 10/3/2019 15:45:41, Larry Colen wrote:
> 
>> On Oct 3, 2019, at 12:04 PM, John <jsessoms002 at nc.rr.com> wrote:
>>
>> Images at ISO 204800 tend to be a bit noisy.
> 
> Yes, there is no question of that, but this gives a feel for how noisy.  By the same token 200mm shots hand held slower than 1/60 second, or any shots of a musician shot at slower than 1/60 tend to be a bit blurry.  It’s a question of making the best of a bad situation and what side of the exposure triangle do you push harder on.  I figure that with digital I have very little to lose by trying for the shots, even if none turn out.  Worst case I waste a dime’s worth of hard drive after a night’s shooting, best case I get a keeper shot.
> 
> One thing I noticed many years ago is that if you convert a noisy digital shot to black and white, the noise gives a retro high ISO film feel.
> 
> Here’s the same frame processed in black and white
> https://www.flickr.com/photos/ellarsee/48795253708/in/album-72157711063469821/
> 
> To my eye the noise is about the same as the grain in plus-X, not even Tri-X.
> 
> Is that frame technically strong enough for me to print out? Not really, and I almost certainly wouldn’t hang it on my wall.  However, for a lot of subjects, that might be the cleanest photo they have of them doing whatever they love, because things like dancing or playing music tend to happen in really crappy light.
> 
> If I compare this with shots I took with my K100, I would guess it closer to ISO 800 than 20,000.
> 
> 
>>
>> On 10/2/2019 20:16:55, Larry Colen wrote:
>>> There were recently some questions about high ISO on the K-1
>>> I was just going through some photos and noticed that this one is ISO 20,000
>>> http://www.fluidr.com/photos/ellarsee/48795612116/
>>> this one is 16,000
>>> http://www.fluidr.com/photos/ellarsee/48795751847/
>>> Just as data points for setting your own ISO.
>>
> 
> --
> Larry Colen
> lrc at red4est.com
> 
> 
> 
> 


-- 
Science - Questions we may never find answers for.
Religion - Answers we must never question.



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