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Some ISO 3200 from the a900

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dekie View Drop Down
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Post Options Post Options   Quote dekie Quote  Post ReplyReply Direct Link To This Post Topic: Some ISO 3200 from the a900
    Posted: 17 April 2009 at 12:52
All with Min AF 100m at f2.0, ISO3200, 0.0 EV adj.


1. f2.0 1/250


2. f2.0 1/250


3. f2.0 1/160


4. f2.0 1/320


Gr.
 



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MiPr View Drop Down
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Post Options Post Options   Quote MiPr Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2009 at 22:37
Oh boy! They are clean when down-sampled to that size. Nice owl. BTW, what that man is doing, i.e. what are these stripes for?
I'm noise-blind. And noise-about-noise-deaf too ... |   BTW, Dyxum Weekly Exhibitions don't grow on trees ...
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dekie View Drop Down
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Post Options Post Options   Quote dekie Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2009 at 23:41
He is a falconer. Must be something for use in the falconry.

The pics are not so bad at larger sizes. The following is a 100% crop of a 6mp version.

Converted with Capture One, and pp in PS with an own nr action.



And this is a 12,6 mp crop (4350x2900) of 6400 ASA with +0.7 EV adj at 1/160s



Gr.
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CyberManiaK View Drop Down
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Post Options Post Options   Quote CyberManiaK Quote  Post ReplyReply Direct Link To This Post Posted: 18 April 2009 at 00:36
Damn.. this pictures are so clean !!
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Sanjuro View Drop Down
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Post Options Post Options   Quote Sanjuro Quote  Post ReplyReply Direct Link To This Post Posted: 18 April 2009 at 23:18
Very nice for 3200, it shows what this camera can give.
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Romeo333 View Drop Down
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Post Options Post Options   Quote Romeo333 Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2009 at 02:33
Did you use any noise reduction software on the images? They are really good! I am usally a low iso shooter now i am going to try high...
Sony Alpha 7 with Voigtländer 15mm F/4.5 II, Zeiss 35mm F/2 ZM, 50mm F/2 ZM, Hasselblad 80mm F/2.8 CF, Hasselblad 150mm F/4 CF and Minolta 85mm F/1.4 G (D)
 



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Post Options Post Options   Quote dogears Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2009 at 02:54
Love #4!
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dekie View Drop Down
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Post Options Post Options   Quote dekie Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2009 at 12:23

>Did you use any noise reduction software on the images? They are really good! I am usally a low iso shooter now i am going to try high...(Romeo333)

No sharpening and no nr in Capture one. But I used the Moiré slider to reduce the chroma noise with the slider for Amount between 50-70, and the slider for Pattern at 50. The advantage of this method is removal of Chroma noise without smearing (the ugly color blotches) and without the loss of color in the fine details.

Processed the pics in PS with an own developped nr action, using methods to reduce noise with different levels for the separate RGB channels, and for selective nr and sharpening with the use of layer masks.

I need some more time for tests and to refine the action. But I will describe my workflow and the action within a few weeks.


A test of the action on the ISO 6400 raw file from Patric Moll:



Resampled at 6mp (as good as ISO800 on my 7D)



Gr.


Edited by dekie - 19 April 2009 at 12:24
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