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PostPosted: Thu Apr 01, 2010 8:01 pm 
WestCoast,is that 100% crop?
yeah I forgot that the A700 uses a CMOS. And ISO 800 looks pretty good. My CCD completly ruins important details at ISO 800.


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PostPosted: Thu Apr 01, 2010 8:18 pm 
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Joined: Thu Nov 08, 2007 6:30 pm
Posts: 6953
Location: The Netherlands, Ridderkerk
By the way: I don't do any noise reduction on my photos.

- Bjorn -

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PostPosted: Thu Apr 01, 2010 9:11 pm 
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Joined: Wed May 14, 2008 4:07 am
Posts: 1012
Location: North of the 49th parallel
"WestCoast,is that 100% crop?
yeah I forgot that the A700 uses a CMOS. And ISO 800 looks pretty good. My CCD completly ruins important details at ISO 800"


Yes, right out of the camera.

I used to have the A200 which uses a CCD / 10.2 and the results were always pretty good considering that I virtually never shoot over 1600 ISO. I believe your D80 uses the same Sony sensor as well. Your "Opera House" photo looks good, and it must have been shot at a high ISO.

I like the way the guy and girl photos turned out, the other shots I would wait till dusk/setting sun, but then again I’m not a pro so I have the luxury of setting my own photographic time schedule.

P.S didn't we used to have a "quote" button?, or is it just me.


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PostPosted: Thu Apr 01, 2010 9:59 pm 
You haven't seen my exposure details? :) You can read down there & to the right, the ISO 100 value at my Opera House shot. :) And 6 seconds shutter.(tripod,of course) I never use more than 100 ISO for architecture shots,the 1st & most important rule aqsually. Because otherwise,the low light noise will wipe out important details.


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PostPosted: Sun Apr 04, 2010 5:26 pm 
I do NR in lightroom if I want a smooth image, and no distractions in darker areas. But I don't mind a bit of noise in grittier shots. Works better in B&W I think.


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PostPosted: Mon Apr 05, 2010 8:00 pm 
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Joined: Wed Nov 18, 2009 5:23 pm
Posts: 828
Location: Boca Raton, FL, USA
I'm not too keen on using noise reduction in post - I just stick with whatever amount the camera is doing on its own in jpeg, or using the same preset in RAW. I too like to use high ISO quite often, and routinely shoot to ISO6400 as needed. My #1 reason for high ISO is available light photography, which I prefer in style and atmosphere to flash. #2 reason would be shooting wildlife in low light conditions, where there really isn't an alternative (750mm is too far for flash!). #3 reason is for occasional night handheld shooting, which can range from scenic snapshots to street-type shots, where tripod and slow shutter is not an option.

BTW, what's interesting about this IDC update is that it appears to essentially be using the same processing algorithms that were created for the A500/550 cameras, as they had already significantly improved the high ISO noise reduction with regards to chroma, and producing a much more pleasing fine-grain lumi noise that preserves reasonable detail.

Some high ISO examples of various types I've shot with my A550:

High ISO and a fast prime are fairly necessary to get shots at Disney World in their dark rides - this was ISO6400 at F1.6:
Image

My cat moves around like a spazz, so high ISO is mandatory in available indoor light. This at ISO3200:
Image

This was just one of those 'have to have it' moments - I don't know why I wanted to take this shot, but I did - the boat was escorting our ship out of port, moving at speed, in complete moonless nighttime blackness - only the lights from the boat itself were visible. ISO6400 let me eke up to 1/13 shutter, just enough to make out the boat details among the lights:
Image

Sometimes, it's just a spontaneous shot...like when I had been out shooting star shots in the front of my house, and decided on the way back to take a quick handheld of my house since the tripod was all folded up and I didn't feel like setting it all back up again. ISO3200 is clean enough to get away with shots like this:
Image

None of these have post-processed noise reduction, but the NR applied in camera is pretty much what you get with the new IDC version...so it may give some idea of what to expect. To me, photography is just fun, and I don't like having limitations with it - I try all kinds of photography, from landscape and wildlife to portrait and action...and I like to try slow-shutter night shots and handheld high ISO stuff.

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Sony DSLR-A580 / Sony 18-250mm / Minolta 50mm F1.7 / Sigma 30mm F1.4 / Tamron 10-24mm / Tamron 150-600mm / Tamron 90mm F2.8 macro / Minolta 300mm F4 APO
Sony A6000 / 18-55mm F3.5-5.6 / 55-210mm F4-6.3 / 10-18mm F4 / 35mm F1.8 / 16mm F2.8 / via manual adapter, lots of Pentax K mount, Konica K/AR mount, and Leica M mount manual lenses

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