ISO 3200 - Why not all the time

Andythaler, thanx for the link to imagenomic, just gave it a try and found it great, will have to play around with it a bit more. Back on topic, I always leave 3200 available, but I don't always remember to double check ISO setting from last shoot Working on that.

I find it odd that use of the high 3200 ISO setting (and the low 50 ISO setting on some cameras) requires a seperate custom function to be enabled.

I understand the reasoning to be that in both cases the method used to create the effective film speed is differnet from the method used to achievw all the other settings,. and that because of this image quality is takes a much larger than the otherwise incremental hit one gets when switching from say,. 400 to 800.

Matty,

again, Noiseware community edition ... 10 seconds.
(Open image/select 'night scene'/press 'go'/save)
On second one, suppression strength was increased.

A bit better.

Best regards,
Andy

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aam1234 wrote:
I guess nobody believes me

"It's because the 3200 was not approved by ISO (International Organization for Standardization). From what I understood it's not a real 3200, it's just iso 1600 on steroids (so to speak)."

Would you please explain that? What's the difference between H ('1600 on steroids') and 3200? Is it like a 'curved up' 1600?

Experiment at 3200 and 50 with the 5D...

Subject... Small candle in a green bowl filled with potpourri and a green vase filled with sand and pebbles in my bathroom by the light of the candle... I took the same image at ISO 50 and ISO 3200 then flipped on to create the image you see... They were both taken @ f/7.1, the one at ISO 50 took 20 seconds, the one at ISO 3200 took 0.3 seconds...

HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

yeah, I was at one of my friends shows and shooting with my 20d and i accidently had it on H 3200 i felt dumb because when i went and loaded the pics on my computer the noise was overwhelming. Its was a good lesson though...pay more attention to what your doing.
so it doesnt matter if it is on or off as far as i know because i left mine on all the time and that is just the issue.
-Steve